diff --git a/.gitignore b/.gitignore
index 81e4c508c..7bd2fa6b8 100644
--- a/.gitignore
+++ b/.gitignore
@@ -10,6 +10,7 @@ __debug_bin*
 !templates/**/*.yaml
 !templates/**/*-schema.json
 !util/templates/**/*.yaml
+!assets/js/**/*.yaml
 !package*.json
 !evcc.dist.yaml
 !tests/**/*.evcc.yaml
diff --git a/api/globalconfig/types.go b/api/globalconfig/types.go
new file mode 100644
index 000000000..a69765674
--- /dev/null
+++ b/api/globalconfig/types.go
@@ -0,0 +1,142 @@
+package globalconfig
+
+import (
+	"fmt"
+	"net"
+	"strconv"
+	"time"
+
+	"github.com/evcc-io/evcc/charger/eebus"
+	"github.com/evcc-io/evcc/provider/mqtt"
+	"github.com/evcc-io/evcc/push"
+	"github.com/evcc-io/evcc/util/config"
+	"github.com/evcc-io/evcc/util/modbus"
+)
+
+type All struct {
+	Network      Network
+	Log          string
+	SponsorToken string
+	Plant        string // telemetry plant id
+	Telemetry    bool
+	Metrics      bool
+	Profile      bool
+	Levels       map[string]string
+	Interval     time.Duration
+	Database     DB
+	Mqtt         Mqtt
+	ModbusProxy  []ModbusProxy
+	Javascript   []Javascript
+	Go           []Go
+	Influx       Influx
+	EEBus        eebus.Config
+	HEMS         config.Typed
+	Messaging    Messaging
+	Meters       []config.Named
+	Chargers     []config.Named
+	Vehicles     []config.Named
+	Tariffs      Tariffs
+	Site         map[string]interface{}
+	Loadpoints   []map[string]interface{}
+	Circuits     []config.Named
+}
+
+type Javascript struct {
+	VM     string
+	Script string
+}
+
+type Go struct {
+	VM     string
+	Script string
+}
+
+type ModbusProxy struct {
+	Port            int
+	ReadOnly        string
+	modbus.Settings `mapstructure:",squash"`
+}
+
+type Mqtt struct {
+	mqtt.Config `mapstructure:",squash"`
+	Topic       string `json:"topic"`
+}
+
+// Redacted implements the redactor interface used by the tee publisher
+func (m Mqtt) Redacted() any {
+	// TODO add masked password
+	return struct {
+		Broker   string `json:"broker"`
+		Topic    string `json:"topic"`
+		User     string `json:"user"`
+		ClientID string `json:"clientID"`
+		Insecure bool   `json:"insecure"`
+	}{
+		Broker:   m.Broker,
+		Topic:    m.Topic,
+		User:     m.User,
+		ClientID: m.ClientID,
+		Insecure: m.Insecure,
+	}
+}
+
+// Influx is the influx db configuration
+type Influx struct {
+	URL      string `json:"url"`
+	Database string `json:"database"`
+	Token    string `json:"token"`
+	Org      string `json:"org"`
+	User     string `json:"user"`
+	Password string `json:"password"`
+}
+
+// Redacted implements the redactor interface used by the tee publisher
+func (c Influx) Redacted() any {
+	// TODO add masked password
+	return struct {
+		URL      string `json:"url"`
+		Database string `json:"database"`
+		Org      string `json:"org"`
+		User     string `json:"user"`
+	}{
+		URL:      c.URL,
+		Database: c.Database,
+		Org:      c.Org,
+		User:     c.User,
+	}
+}
+
+type DB struct {
+	Type string
+	Dsn  string
+}
+
+type Messaging struct {
+	Events   map[string]push.EventTemplateConfig
+	Services []config.Typed
+}
+
+type Tariffs struct {
+	Currency string
+	Grid     config.Typed
+	FeedIn   config.Typed
+	Co2      config.Typed
+	Planner  config.Typed
+}
+
+type Network struct {
+	Schema string `json:"schema"`
+	Host   string `json:"host"`
+	Port   int    `json:"port"`
+}
+
+func (c Network) HostPort() string {
+	if c.Schema == "http" && c.Port == 80 || c.Schema == "https" && c.Port == 443 {
+		return c.Host
+	}
+	return net.JoinHostPort(c.Host, strconv.Itoa(c.Port))
+}
+
+func (c Network) URI() string {
+	return fmt.Sprintf("%s://%s", c.Schema, c.HostPort())
+}
diff --git a/assets/css/app.css b/assets/css/app.css
index eae80f4f6..f3ae7cee3 100644
--- a/assets/css/app.css
+++ b/assets/css/app.css
@@ -35,9 +35,11 @@
 	--evcc-red-rgb: 252, 68, 15;
 	--bs-gray-deep: #010322;
 	--bs-gray-dark: #28293e;
+	--bs-gray-darker: #151630;
 	--bs-gray-medium: #93949e;
 	--bs-gray-light: #b5b6c3;
 	--bs-gray-bright: #f3f3f7;
+	--bs-gray-brighter: #f9f9fb;
 
 	--evcc-grid: var(--bs-gray-dark);
 	--evcc-self: var(--evcc-dark-green);
@@ -46,6 +48,7 @@
 	--evcc-export: var(--evcc-yellow);
 	--evcc-background: var(--bs-gray-bright);
 	--evcc-box: var(--bs-white);
+	--evcc-box-border: var(--bs-gray-brighter);
 	--evcc-default-text: var(--bs-gray-dark);
 	--evcc-gray: var(--bs-gray-medium);
 	--evcc-gray-50: #93949e80;
@@ -65,6 +68,10 @@
 
 	--bs-warning: var(--evcc-orange);
 	--bs-warning-rgb: var(--evcc-orange-rgb);
+	--bs-danger-50: #dc354580;
+
+	--bs-danger: var(--evcc-red);
+	--bs-danger-rgb: var(--evcc-red-rgb);
 
 	--bs-danger: var(--evcc-red);
 	--bs-danger-rgb: var(--evcc-red-rgb);
@@ -76,12 +83,14 @@
 	--bs-success: var(--evcc-primary);
 	--bs-success-rgb: var(--bs-primary-rgb);
 	--bs-code-color: var(--evcc-darkest-green);
+	--evcc-backdrop: #93949eaa; /* --bs-gray-medium + transparent */
 }
 
 :root.dark {
 	--evcc-grid: var(--bs-gray-medium);
 	--evcc-background: var(--bs-gray-deep);
 	--evcc-box: var(--bs-gray-dark);
+	--evcc-box-border: var(--vs-gray-darker);
 	--evcc-default-text: var(--bs-white);
 	--evcc-gray: var(--bs-gray-light);
 	--evcc-accent1: var(--evcc-yellow);
@@ -90,15 +99,10 @@
 	--bs-primary: var(--evcc-dark-green);
 	--bs-border-color-translucent: rgba(255, 255, 255, 0.175);
 	--bs-code-color: var(--evcc-dark-green);
+	--evcc-backdrop: #000000aa; /* black + transparent */
 	color-scheme: dark;
 }
 
-html {
-	/* prevents content jump when scrollbar is activate */
-	width: 100vw;
-	overflow-x: hidden;
-}
-
 html.no-transitions * {
 	transition: none !important;
 }
@@ -322,7 +326,19 @@ a:hover {
 }
 
 .modal-backdrop.show {
-	opacity: 0.8;
+	opacity: 1;
+}
+
+.modal-backdrop {
+	--bs-backdrop-bg: var(--evcc-backdrop);
+	-webkit-backdrop-filter: blur(8px);
+	backdrop-filter: blur(8px);
+}
+
+.modal-backdrop.fade {
+	transition-property: opacity, backdrop-filter, background-color;
+	transition-duration: var(--evcc-transition-fast);
+	transition-timing-function: linear;
 }
 
 .modal-header {
@@ -342,6 +358,13 @@ a:hover {
 	color: var(--evcc-default-text);
 }
 
+.modal-content h6 {
+	margin-top: 2rem;
+	margin-bottom: 1.5rem;
+	font-size: 1rem;
+	font-weight: bold;
+}
+
 /* breakpoint sm */
 @media (min-width: 576px) {
 	.modal-content {
@@ -362,6 +385,10 @@ a:hover {
 	margin: 0;
 }
 
+html:has(.modal.show) {
+	overflow-y: hidden;
+}
+
 .cursor-pointer {
 	cursor: pointer;
 }
@@ -514,6 +541,9 @@ input[type="time"]::-webkit-calendar-picker-indicator {
 	.w-sm-50 {
 		width: 50% !important;
 	}
+	.w-sm-25 {
+		width: 25% !important;
+	}
 }
 
 html.app .hide-in-app {
@@ -553,13 +583,20 @@ html.app .modal-dialog {
 
 .round-box {
 	border-radius: 1rem;
-	box-shadow: 0 0 0 0 var(--evcc-gray-50);
 	color: var(--evcc-default-text);
 	background: var(--evcc-box);
 	padding: 1rem;
-	border: 1px solid var(--evcc-gray-50);
-	transition: box-shadow var(--evcc-transition-fast) linear;
 }
-.round-box:hover {
-	border-color: var(--evcc-gray);
+
+.round-box--error {
+	box-shadow: 0 0 0.5rem var(--bs-danger);
+	border: 1px solid var(--bs-danger);
+}
+
+.round-box--error .tags * {
+	color: var(--bs-danger-text-emphasis) !important;
+}
+
+.alert-danger code {
+	color: var(--evcc-darkest-green);
 }
diff --git a/assets/js/components/Config/CircuitsModal.vue b/assets/js/components/Config/CircuitsModal.vue
new file mode 100644
index 000000000..d11227866
--- /dev/null
+++ b/assets/js/components/Config/CircuitsModal.vue
@@ -0,0 +1,26 @@
+<template>
+	<YamlModal
+		id="circuitsModal"
+		:title="$t('config.circuits.title')"
+		:description="$t('config.circuits.description')"
+		docs="/docs/reference/configuration/circuits"
+		:defaultYaml="defaultYaml"
+		endpoint="/config/circuits"
+		size="md"
+		@changed="$emit('changed')"
+	/>
+</template>
+
+<script>
+import YamlModal from "./YamlModal.vue";
+import defaultYaml from "./defaultYaml/circuits.yaml?raw";
+
+export default {
+	name: "CircuitsModal",
+	components: { YamlModal },
+	emits: ["changed"],
+	data() {
+		return { defaultYaml: defaultYaml.trim() };
+	},
+};
+</script>
diff --git a/assets/js/components/Config/ControlModal.vue b/assets/js/components/Config/ControlModal.vue
new file mode 100644
index 000000000..bd563e967
--- /dev/null
+++ b/assets/js/components/Config/ControlModal.vue
@@ -0,0 +1,194 @@
+<template>
+	<GenericModal
+		id="controlModal"
+		ref="modal"
+		:title="$t('config.control.title')"
+		data-testid="control-modal"
+		@open="open"
+	>
+		<p>{{ $t("config.control.description") }}</p>
+		<p class="text-danger" v-if="error">{{ error }}</p>
+		<form ref="form" class="container mx-0 px-0" @submit.prevent="save">
+			<FormRow
+				id="controlInterval"
+				:label="$t('config.control.labelInterval')"
+				:help="$t('config.control.descriptionInterval')"
+				example="30 s"
+				docsLink="/docs/reference/configuration/interval"
+			>
+				<div class="input-group w-50 w-sm-25">
+					<input
+						id="controlInterval"
+						v-model="values.interval"
+						type="number"
+						step="1"
+						min="1"
+						required
+						aria-describedby="controlIntervalUnit"
+						class="form-control text-end"
+					/>
+					<span id="controlIntervalUnit" class="input-group-text">s</span>
+				</div>
+			</FormRow>
+
+			<FormRow
+				id="controlResidualPower"
+				:label="$t('config.control.labelResidualPower')"
+				:help="$t('config.control.descriptionResidualPower')"
+				example="100 W"
+				docsLink="/docs/reference/configuration/site#residualpower"
+			>
+				<div class="input-group w-50 w-sm-25">
+					<input
+						id="controlResidualPower"
+						v-model="values.residualPower"
+						type="number"
+						step="1"
+						required
+						aria-describedby="controlResidualPowerUnit"
+						class="form-control text-end"
+					/>
+					<span id="controlResidualPowerUnit" class="input-group-text">W</span>
+				</div>
+			</FormRow>
+
+			<FormRow
+				id="controlMaxGridSupply"
+				:label="$t('config.control.labelMaxGridSupply')"
+				:help="$t('config.control.descriptionMaxGridSupply')"
+				docsLink="/docs/reference/configuration/site#maxgridsupplywhilebatterycharging"
+			>
+				<div class="input-group w-50 w-sm-25">
+					<input
+						id="controlMaxGridSupply"
+						v-model="values.maxGridSupply"
+						type="number"
+						step="1"
+						required
+						aria-describedby="controlMaxGridSupplyUnit"
+						class="form-control text-end"
+					/>
+					<span id="controlMaxGridSupplyUnit" class="input-group-text">W</span>
+				</div>
+			</FormRow>
+
+			<div class="mt-4 d-flex justify-content-between gap-2 flex-column flex-sm-row">
+				<button
+					type="button"
+					class="btn btn-link text-muted btn-cancel"
+					data-bs-dismiss="modal"
+				>
+					{{ $t("config.general.cancel") }}
+				</button>
+
+				<button
+					type="submit"
+					class="btn btn-primary order-1 order-sm-2 flex-grow-1 flex-sm-grow-0 px-4"
+					:disabled="saving || nothingChanged"
+				>
+					<span
+						v-if="saving"
+						class="spinner-border spinner-border-sm"
+						role="status"
+						aria-hidden="true"
+					></span>
+					{{ $t("config.general.save") }}
+				</button>
+			</div>
+		</form>
+	</GenericModal>
+</template>
+
+<script>
+import GenericModal from "./../GenericModal.vue";
+import FormRow from "./FormRow.vue";
+import store from "../../store";
+import api from "../../api";
+
+export default {
+	name: "ControlModal",
+	components: { FormRow, GenericModal },
+	emits: ["changed"],
+	data() {
+		return {
+			saving: false,
+			error: "",
+			values: {},
+			serverValues: {},
+		};
+	},
+	computed: {
+		intervalChanged() {
+			return this.values.interval !== this.serverValues.interval;
+		},
+		residualPowerChanged() {
+			return this.values.residualPower !== this.serverValues.residualPower;
+		},
+		maxGridSupplyChanged() {
+			return this.values.maxGridSupply !== this.serverValues.maxGridSupply;
+		},
+		nothingChanged() {
+			return (
+				!this.intervalChanged && !this.residualPowerChanged && !this.maxGridSupplyChanged
+			);
+		},
+	},
+	methods: {
+		reset() {
+			const {
+				interval,
+				residualPower,
+				maxGridSupplyWhileBatteryCharging: maxGridSupply,
+			} = store?.state || {};
+			this.saving = false;
+			this.error = "";
+			this.values = { interval, residualPower, maxGridSupply };
+			this.serverValues = { ...this.values };
+		},
+		async open() {
+			this.reset();
+		},
+		async saveValue(name) {
+			let url = "";
+			if (name === "interval") {
+				url = `/config/interval/${encodeURIComponent(this.values.interval)}`;
+			} else if (name === "residualPower") {
+				url = `/residualpower/${encodeURIComponent(this.values.residualPower)}`;
+			} else if (name === "maxGridSupply") {
+				url = `/maxgridsupply/${encodeURIComponent(this.values.maxGridSupply)}`;
+			}
+			await api.post(url);
+		},
+		async save() {
+			this.saving = true;
+			this.error = "";
+			try {
+				if (this.intervalChanged) {
+					await this.saveValue("interval");
+				}
+				if (this.residualPowerChanged) {
+					await this.saveValue("residualPower");
+				}
+				if (this.maxGridSupplyChanged) {
+					await this.saveValue("maxGridSupply");
+				}
+				this.$emit("changed");
+				this.$refs.modal.close();
+			} catch (e) {
+				this.error = e.message;
+			}
+			this.saving = false;
+		},
+	},
+};
+</script>
+<style scoped>
+.container {
+	margin-left: calc(var(--bs-gutter-x) * -0.5);
+	margin-right: calc(var(--bs-gutter-x) * -0.5);
+	padding-right: 0;
+}
+.btn-cancel {
+	margin-left: -0.75rem;
+}
+</style>
diff --git a/assets/js/components/Config/DeviceCard.vue b/assets/js/components/Config/DeviceCard.vue
index 57c7049b6..20b68e5b9 100644
--- a/assets/js/components/Config/DeviceCard.vue
+++ b/assets/js/components/Config/DeviceCard.vue
@@ -1,21 +1,12 @@
 <template>
-	<li class="root py-2 px-4">
+	<li class="root round-box" :class="{ 'round-box--error': error }">
 		<div class="d-flex align-items-center mb-2">
 			<div class="icon me-2">
 				<slot name="icon" />
 			</div>
 			<strong class="flex-grow-1 text-nowrap text-truncate">{{ name }}</strong>
 			<button
-				v-if="unconfigured"
-				type="button"
-				class="btn btn-sm btn-outline-secondary position-relative border-0 p-2"
-				:title="$t('config.main.new')"
-				@click="$emit('configure')"
-			>
-				<shopicon-regular-adjust size="s"></shopicon-regular-adjust>
-			</button>
-			<button
-				v-else-if="editable"
+				v-if="editable"
 				type="button"
 				class="btn btn-sm btn-outline-secondary position-relative border-0 p-2"
 				:title="$t('config.main.edit')"
@@ -34,17 +25,14 @@
 				<shopicon-regular-adjust size="s"></shopicon-regular-adjust>
 			</button>
 		</div>
-		<div v-if="unconfigured" class="text-center py-3 evcc-gray">
-			{{ $t("config.main.unconfigured") }}
-		</div>
-		<slot v-else name="tags" />
+		<hr class="my-3 divide" />
+		<slot name="tags" />
 	</li>
 </template>
 
 <script>
 import "@h2d2/shopicons/es/regular/adjust";
 import "@h2d2/shopicons/es/regular/invoice";
-import "@h2d2/shopicons/es/regular/edit";
 import Tooltip from "bootstrap/js/dist/tooltip";
 
 export default {
@@ -52,14 +40,14 @@ export default {
 	props: {
 		name: String,
 		editable: Boolean,
-		unconfigured: Boolean,
+		error: Boolean,
 	},
 	data() {
 		return {
 			tooltip: null,
 		};
 	},
-	emits: ["edit", "configure"],
+	emits: ["edit"],
 	mounted() {
 		this.initTooltip();
 	},
@@ -67,9 +55,6 @@ export default {
 		editable() {
 			this.initTooltip();
 		},
-		unconfigured() {
-			this.initTooltip();
-		},
 	},
 	methods: {
 		initTooltip() {
@@ -88,18 +73,15 @@ export default {
 .root {
 	display: block;
 	list-style-type: none;
-	min-height: 9rem;
-	color: var(--evcc-default-text);
 	border-radius: 1rem;
-	border: 1px solid var(--evcc-gray-50);
-	padding: 1rem 1rem 0.5rem;
-	transition: border-color var(--evcc-transition-fast) linear;
-	background: var(--evcc-box);
-}
-.root:hover {
-	border-color: var(--evcc-gray);
+	padding: 1rem 1.5rem;
+	min-height: 8rem;
 }
 .icon:empty {
 	display: none;
 }
+.divide {
+	margin-left: -1.5rem;
+	margin-right: -1.5rem;
+}
 </style>
diff --git a/assets/js/components/Config/DeviceTags.vue b/assets/js/components/Config/DeviceTags.vue
index 594621eca..28dfe54ae 100644
--- a/assets/js/components/Config/DeviceTags.vue
+++ b/assets/js/components/Config/DeviceTags.vue
@@ -1,16 +1,20 @@
 <template>
-	<div v-if="tags" class="d-flex mb-2 flex-wrap">
+	<div v-if="tags" class="tags">
 		<span
 			v-for="(entry, index) in entries"
 			:key="index"
-			class="badge text-bg-secondary me-2 mb-2"
-			:class="{
-				'text-bg-secondary': !entry.error,
-				'text-bg-danger': entry.error,
-			}"
+			:data-testid="`device-tag-${entry.name}`"
+			class="d-flex gap-2 overflow-hidden text-truncate"
 		>
-			<strong>{{ $t(`config.deviceValue.${entry.name}`) }}:</strong>
-			{{ fmtDeviceValue(entry) }}
+			<div class="label overflow-hidden text-truncate flex-shrink-1 flex-grow-1">
+				{{ $t(`config.deviceValue.${entry.name}`) }}
+			</div>
+			<div
+				class="value overflow-hidden text-truncate"
+				:class="{ 'value--error': hasError(entry), 'value--muted': entry.value === false }"
+			>
+				{{ fmtDeviceValue(entry) }}
+			</div>
 		</span>
 	</div>
 </template>
@@ -25,14 +29,20 @@ export default {
 	mixins: [formatter],
 	computed: {
 		entries() {
-			return Object.entries(this.tags).map(([name, { value, error }]) => {
-				return { name, value, error };
+			return Object.entries(this.tags).map(([name, { value, error, options }]) => {
+				return { name, value, error, options };
 			});
 		},
 	},
 	methods: {
+		hasError(entry) {
+			return !!entry.error;
+		},
 		fmtDeviceValue(entry) {
-			const { name, value } = entry;
+			const { name, value, options = {} } = entry;
+			if (value === null || value === undefined) {
+				return "";
+			}
 			switch (name) {
 				case "power":
 					return this.fmtKw(value);
@@ -43,6 +53,8 @@ export default {
 				case "soc":
 				case "socLimit":
 					return this.fmtPercentage(value, 1);
+				case "temp":
+					return this.fmtTemperature(value);
 				case "odometer":
 				case "range":
 					return `${this.fmtNumber(value, 0)} km`;
@@ -53,11 +65,43 @@ export default {
 				case "phasePowers":
 					return value.map((v) => this.fmtKw(v)).join(", ");
 				case "chargeStatus":
-					return value;
+					return this.$t(`config.deviceValue.chargeStatus${value}`);
+				case "gridPrice":
+				case "feedinPrice":
+					return this.fmtPricePerKWh(value, options.currency, true);
+				case "co2":
+					return this.fmtCo2Short(value);
+				case "configured":
+					return value
+						? this.$t("config.deviceValue.yes")
+						: this.$t("config.deviceValue.no");
 			}
 			return value;
 		},
 	},
 };
 </script>
-<style scoped></style>
+<style scoped>
+.tags {
+	display: grid;
+	grid-template-columns: 1fr;
+	grid-gap: 0.5rem;
+}
+.label {
+	min-width: 4rem;
+}
+.value {
+	font-weight: bold;
+	color: var(--bs-primary);
+}
+.value:empty::after {
+	color: var(--evcc-gray);
+	content: "–";
+}
+.value--error {
+	color: var(--bs-danger);
+}
+.value--muted {
+	color: var(--evcc-gray) !important;
+}
+</style>
diff --git a/assets/js/components/Config/EebusModal.vue b/assets/js/components/Config/EebusModal.vue
new file mode 100644
index 000000000..fb242bf24
--- /dev/null
+++ b/assets/js/components/Config/EebusModal.vue
@@ -0,0 +1,25 @@
+<template>
+	<YamlModal
+		id="eebusModal"
+		:title="$t('config.eebus.title')"
+		:description="$t('config.eebus.description')"
+		docs="/docs/reference/configuration/eebus"
+		:defaultYaml="defaultYaml"
+		endpoint="/config/eebus"
+		@changed="$emit('changed')"
+	/>
+</template>
+
+<script>
+import YamlModal from "./YamlModal.vue";
+import defaultYaml from "./defaultYaml/eebus.yaml?raw";
+
+export default {
+	name: "EebusModal",
+	components: { YamlModal },
+	emits: ["changed"],
+	data() {
+		return { defaultYaml: defaultYaml.trim() };
+	},
+};
+</script>
diff --git a/assets/js/components/Config/FormRow.vue b/assets/js/components/Config/FormRow.vue
index ed0d22e64..119d194ed 100644
--- a/assets/js/components/Config/FormRow.vue
+++ b/assets/js/components/Config/FormRow.vue
@@ -12,13 +12,19 @@
 		</div>
 		<div class="form-text evcc-gray">
 			<div v-if="example">{{ $t("config.form.example") }}: {{ example }}</div>
-			<div v-if="help" v-html="helpHtml" class="text-gray"></div>
+			<div v-if="help">
+				<span class="text-gray" v-html="helpHtml"></span>
+				<a class="ms-1 text-gray" v-if="link" :href="link" target="_blank">
+					{{ $t("config.general.docsLink") }}
+				</a>
+			</div>
 		</div>
 	</div>
 </template>
 
 <script>
 import linkify from "../../utils/linkify";
+import { docsPrefix } from "../../i18n";
 
 export default {
 	name: "FormRow",
@@ -28,11 +34,15 @@ export default {
 		help: String,
 		optional: Boolean,
 		example: String,
+		docsLink: String,
 	},
 	computed: {
 		helpHtml() {
 			return linkify(this.help);
 		},
+		link() {
+			return this.docsLink ? `${docsPrefix()}${this.docsLink}` : null;
+		},
 	},
 };
 </script>
diff --git a/assets/js/components/Config/GeneralConfig.vue b/assets/js/components/Config/GeneralConfig.vue
index 6b90345de..0f9e9366d 100644
--- a/assets/js/components/Config/GeneralConfig.vue
+++ b/assets/js/components/Config/GeneralConfig.vue
@@ -1,93 +1,111 @@
 <template>
-	<div class="group round-box pt-4 px-4 pb-1">
-		<dl class="row" data-testid="generalconfig-title">
-			<dt class="col-sm-4">Title</dt>
-			<dd class="col-sm-8">
-				{{ title || "---" }}
-				<a
-					href="#"
-					class="ms-2 d-inline-block text-muted"
-					@click.prevent="openModal('titleModal')"
-				>
-					edit
-				</a>
+	<div class="group round-box p-4">
+		<div class="config-entry" data-testid="generalconfig-title">
+			<strong class="config-label">{{ $t("config.general.title") }}</strong>
+			<div class="config-text">{{ title || "---" }}</div>
+			<button
+				class="config-button btn btn-link"
+				type="button"
+				:title="$t('config.main.edit')"
+				@click.prevent="openModal('titleModal')"
+			>
+				<EditIcon size="xs" />
 				<TitleModal ref="titleModal" @changed="load" />
-			</dd>
-		</dl>
-		<dl class="row" data-testid="generalconfig-password">
-			<dt class="col-sm-4">Password</dt>
-			<dd class="col-sm-8">
-				*******
-				<a
-					href="#"
-					class="ms-2 d-inline-block text-muted"
-					@click.prevent="openModal('passwordModal')"
-					>edit</a
-				>
-			</dd>
-		</dl>
-		<dl class="row" data-testid="generalconfig-telemetry">
-			<dt class="col-sm-4">Telemetry</dt>
-			<dd class="col-sm-8">
-				{{ telemetryEnabled ? "on" : "off" }}
-				<a
-					href="#"
-					class="ms-2 d-inline-block text-muted"
-					@click.prevent="openModal('globalSettingsModal')"
-				>
-					change
-				</a>
-			</dd>
-		</dl>
-		<dl class="row" data-testid="generalconfig-experimental">
-			<dt class="col-sm-4">Experimental</dt>
-			<dd class="col-sm-8">
-				{{ hiddenFeatures ? "on" : "off" }}
-				<a
-					href="#"
-					class="ms-2 d-inline-block text-muted"
-					@click.prevent="openModal('globalSettingsModal')"
-				>
-					change
-				</a>
-			</dd>
-		</dl>
-		<dl class="row wip">
-			<dt class="col-sm-4">API-Key</dt>
-			<dd class="col-sm-8">
-				*******
-				<a href="#" class="ms-2 d-inline-block text-muted" @click.prevent="todo">show</a>
-			</dd>
-		</dl>
-		<dl class="row wip">
-			<dt class="col-sm-4">Sponsoring</dt>
-			<dd class="col-sm-8">
-				<span class="text-primary"> valid </span>
-				<a href="#" class="ms-2 d-inline-block text-muted" @click.prevent="todo">change</a>
-			</dd>
-		</dl>
-		<dl class="row wip">
-			<dt class="col-sm-4">Server</dt>
-			<dd class="col-sm-8">
-				http://evcc.local:7070
-				<a href="#" class="ms-2 d-inline-block text-muted" @click.prevent="todo">edit</a>
-			</dd>
-		</dl>
-		<dl class="row wip">
-			<dt class="col-sm-4">Update Interval</dt>
-			<dd class="col-sm-8">
-				30s
-				<a href="#" class="ms-2 d-inline-block text-muted" @click.prevent="todo">edit</a>
-			</dd>
-		</dl>
+			</button>
+		</div>
+		<div class="config-entry" data-testid="generalconfig-password">
+			<strong class="config-label">{{ $t("config.general.password") }}</strong>
+			<div class="config-text">*******</div>
+			<button
+				class="config-button btn btn-link"
+				type="button"
+				:title="$t('config.main.edit')"
+				@click.prevent="openModal('passwordModal')"
+			>
+				<EditIcon size="xs" />
+			</button>
+		</div>
+		<div class="config-entry" data-testid="generalconfig-telemetry">
+			<strong class="config-label">{{ $t("config.general.telemetry") }}</strong>
+			<div class="config-text">
+				{{ $t(`config.general.${telemetryEnabled ? "on" : "off"}`) }}
+			</div>
+			<button
+				class="config-button btn btn-link"
+				type="button"
+				:title="$t('config.main.edit')"
+				@click.prevent="openModal('globalSettingsModal')"
+			>
+				<EditIcon size="xs" />
+			</button>
+		</div>
+		<div class="config-entry" data-testid="generalconfig-experimental">
+			<strong class="config-label">{{ $t("config.general.experimental") }}</strong>
+			<div class="config-text">
+				{{ $t(`config.general.${hiddenFeatures ? "on" : "off"}`) }}
+			</div>
+			<button
+				class="config-button btn btn-link"
+				type="button"
+				:title="$t('config.main.edit')"
+				@click.prevent="openModal('globalSettingsModal')"
+			>
+				<EditIcon size="xs" />
+			</button>
+		</div>
+		<div v-if="$hiddenFeatures()" class="config-entry" data-testid="generalconfig-sponsoring">
+			<strong class="config-label">{{ $t("config.sponsor.title") }} 🧪</strong>
+			<div class="config-text" :class="sponsorStatus.cssClass">
+				<span
+					v-if="sponsorStatus.expiresSoon"
+					class="d-inline-block me-1 p-1 rounded-circle bg-warning rounded-circle"
+				></span>
+				{{ sponsorStatus.name || "---" }}
+			</div>
+			<button
+				class="config-button btn btn-link"
+				type="button"
+				:title="$t('config.main.edit')"
+				@click.prevent="openModal('sponsorModal')"
+			>
+				<EditIcon size="xs" />
+			</button>
+		</div>
+		<div v-if="$hiddenFeatures()" class="config-entry" data-testid="generalconfig-network">
+			<strong class="config-label">{{ $t("config.network.title") }} 🧪</strong>
+			<div class="config-text">{{ networkStatus }}</div>
+			<button
+				class="config-button btn btn-link"
+				type="button"
+				:title="$t('config.main.edit')"
+				@click.prevent="openModal('networkModal')"
+			>
+				<EditIcon size="xs" />
+			</button>
+		</div>
+		<div v-if="$hiddenFeatures()" class="config-entry" data-testid="generalconfig-control">
+			<strong class="config-label">{{ $t("config.control.title") }} 🧪</strong>
+			<div class="config-text">{{ controlStatus }}</div>
+			<button
+				class="config-button btn btn-link"
+				type="button"
+				:title="$t('config.main.edit')"
+				@click.prevent="openModal('controlModal')"
+			>
+				<EditIcon size="xs" />
+			</button>
+		</div>
 	</div>
 </template>
 
 <script>
 import Modal from "bootstrap/js/dist/modal";
 import TitleModal from "./TitleModal.vue";
+import EditIcon from "../MaterialIcon/Edit.vue";
 import api from "../../api";
 import settings from "../../settings";
+import store from "../../store";
+import formatter from "../../mixins/formatter";
 
 export default {
 	name: "GeneralConfig",
@@ -96,7 +114,8 @@ export default {
 			title: "",
 		};
 	},
-	components: { TitleModal },
+	components: { TitleModal, EditIcon },
+	mixins: [formatter],
 	emits: ["site-changed"],
 	async mounted() {
 		await this.load();
@@ -108,6 +127,26 @@ export default {
 		hiddenFeatures() {
 			return settings.hiddenFeatures === true;
 		},
+		networkStatus() {
+			const { host, port } = store.state?.network || {};
+			return host ? `${host}:${port}` : `${port || ""}`;
+		},
+		controlStatus() {
+			const sec = store.state?.interval;
+			return sec ? this.fmtDuration(sec) : "";
+		},
+		sponsorStatus() {
+			const sponsor = store.state?.sponsor || {};
+			const { name, expiresSoon } = sponsor;
+			let cssClass = "";
+			if (expiresSoon) {
+				cssClass = "text-warning";
+			} else if (name) {
+				cssClass = "text-primary";
+			}
+
+			return { name, expiresSoon, cssClass };
+		},
 	},
 	methods: {
 		async changed() {
@@ -116,8 +155,14 @@ export default {
 		},
 		async load() {
 			try {
-				let res = await api.get("/config/site");
-				this.title = res.data.result.title;
+				let res = await api.get("/config/site", {
+					validateStatus: (code) => [200, 404].includes(code),
+				});
+				if (res.status === 200) {
+					this.title = res.data.result.title;
+				} else {
+					console.log("TODO: implement site endpoint in config error mode");
+				}
 			} catch (e) {
 				console.error(e);
 			}
@@ -140,17 +185,39 @@ export default {
 <style scoped>
 .group {
 	display: grid;
-	grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
+	grid-template-columns: repeat(auto-fill, minmax(225px, 1fr));
+	grid-gap: 2rem 5rem;
 	margin-bottom: 5rem;
+	align-items: start;
 }
 .wip {
 	opacity: 0.2;
-	display: none !important;
 }
-dt {
-	margin-bottom: 0.5rem;
+.config-entry {
+	display: flex;
+	flex-wrap: nowrap;
+	justify-content: space-between;
+	align-items: center;
+	gap: 0.5rem;
 }
-dd {
-	margin-bottom: 1rem;
+.config-label {
+	overflow: hidden;
+	text-overflow: ellipsis;
+	white-space: nowrap;
+	flex-shrink: 1;
+	flex-grow: 0;
+}
+.config-text {
+	overflow: hidden;
+	text-overflow: ellipsis;
+	white-space: nowrap;
+	flex-shrink: 1;
+	flex-grow: 1;
+	text-align: right;
+}
+.config-button {
+	margin-right: -1rem;
+	flex-shrink: 0;
+	color: var(--evcc-text-default);
 }
 </style>
diff --git a/assets/js/components/Config/HemsModal.vue b/assets/js/components/Config/HemsModal.vue
new file mode 100644
index 000000000..22618aa0a
--- /dev/null
+++ b/assets/js/components/Config/HemsModal.vue
@@ -0,0 +1,26 @@
+<template>
+	<YamlModal
+		id="hemsModal"
+		:title="$t('config.hems.title')"
+		:description="$t('config.hems.description')"
+		docs="/docs/reference/configuration/hems"
+		:defaultYaml="defaultYaml"
+		endpoint="/config/hems"
+		size="md"
+		@changed="$emit('changed')"
+	/>
+</template>
+
+<script>
+import YamlModal from "./YamlModal.vue";
+import defaultYaml from "./defaultYaml/hems.yaml?raw";
+
+export default {
+	name: "HemsModal",
+	components: { YamlModal },
+	emits: ["changed"],
+	data() {
+		return { defaultYaml: defaultYaml.trim() };
+	},
+};
+</script>
diff --git a/assets/js/components/Config/InfluxModal.vue b/assets/js/components/Config/InfluxModal.vue
new file mode 100644
index 000000000..914ecddc9
--- /dev/null
+++ b/assets/js/components/Config/InfluxModal.vue
@@ -0,0 +1,122 @@
+<template>
+	<JsonModal
+		id="influxModal"
+		:title="$t('config.influx.title')"
+		:description="$t('config.influx.description')"
+		docs="/docs/reference/configuration/influx"
+		endpoint="/config/influx"
+		state-key="influx"
+		data-testid="influx-modal"
+		@changed="$emit('changed')"
+	>
+		<template v-slot:default="{ values }">
+			<FormRow
+				id="influxUrl"
+				:label="$t('config.influx.labelUrl')"
+				example="http://localhost:8086"
+			>
+				<input
+					id="influxUrl"
+					v-model="values.url"
+					type="url"
+					class="form-control"
+					required
+				/>
+			</FormRow>
+			<FormRow
+				v-if="!showV1(values)"
+				id="influxOrg"
+				:label="$t('config.influx.labelOrg')"
+				example="home"
+			>
+				<input id="influxOrg" v-model="values.org" class="form-control" required />
+			</FormRow>
+			<FormRow
+				id="influxDatabase"
+				:label="$t(`config.influx.label${showV1(values) ? 'Database' : 'Bucket'}`)"
+				example="evcc"
+			>
+				<input
+					id="influxDatabase"
+					v-model="values.database"
+					class="form-control"
+					required
+				/>
+			</FormRow>
+			<FormRow
+				v-if="!showV1(values)"
+				id="influxToken"
+				:label="$t('config.influx.labelToken')"
+				:help="$t('config.influx.descriptionToken')"
+			>
+				<input id="influxToken" v-model="values.token" class="form-control" required />
+			</FormRow>
+			<FormRow
+				v-if="showV1(values)"
+				id="influxUser"
+				:label="$t('config.influx.labelUser')"
+				optional
+			>
+				<input id="influxUser" v-model="values.user" class="form-control" />
+			</FormRow>
+			<FormRow
+				v-if="showV1(values)"
+				id="influxPassword"
+				:label="$t('config.influx.labelPassword')"
+				optional
+			>
+				<input
+					id="influxPassword"
+					v-model="values.password"
+					class="form-control"
+					type="password"
+					autocomplete="off"
+				/>
+			</FormRow>
+			<p>
+				<button
+					v-if="showV1(values)"
+					class="btn btn-link btn-sm text-primary px-0"
+					type="button"
+					@click="
+						values.user = '';
+						values.password = '';
+						v1 = false;
+					"
+				>
+					{{ $t("config.influx.v2Support") }}
+				</button>
+				<button
+					v-else
+					class="btn btn-link btn-sm text-primary px-0"
+					type="button"
+					@click="
+						values.token = '';
+						v1 = true;
+					"
+				>
+					{{ $t("config.influx.v1Support") }}
+				</button>
+			</p>
+		</template>
+	</JsonModal>
+</template>
+
+<script>
+import JsonModal from "./JsonModal.vue";
+import FormRow from "./FormRow.vue";
+
+export default {
+	name: "InfluxModal",
+	components: { FormRow, JsonModal },
+	emits: ["changed"],
+	data() {
+		return { v1: false };
+	},
+	methods: {
+		showV1(values) {
+			return this.v1 || values.user || values.password;
+		},
+	},
+};
+</script>
diff --git a/assets/js/components/Config/JsonModal.vue b/assets/js/components/Config/JsonModal.vue
new file mode 100644
index 000000000..ec8001ca3
--- /dev/null
+++ b/assets/js/components/Config/JsonModal.vue
@@ -0,0 +1,174 @@
+<template>
+	<GenericModal ref="modal" :title="title" @open="open">
+		<p v-if="description || docsLink">
+			<span v-if="description">{{ description + " " }}</span>
+			<a v-if="docsLink" :href="docsLink" target="_blank">
+				{{ $t("config.general.docsLink") }}
+			</a>
+		</p>
+		<p class="text-danger" v-if="error">
+			<span v-if="errorMessage" class="d-block">{{ errorMessage }}</span>
+			{{ error }}
+		</p>
+		<form ref="form" class="container mx-0 px-0" @submit.prevent="save">
+			<slot :values="values"></slot>
+
+			<div
+				v-if="!noButtons"
+				class="mt-4 d-flex justify-content-between gap-2 flex-column flex-sm-row"
+			>
+				<div
+					class="d-flex justify-content-between order-2 order-sm-1 gap-2 flex-grow-1 flex-sm-grow-0"
+				>
+					<button
+						type="button"
+						class="btn btn-link text-muted btn-cancel"
+						data-bs-dismiss="modal"
+					>
+						{{ $t("config.general.cancel") }}
+					</button>
+					<button
+						v-if="!disableRemove"
+						type="button"
+						class="btn btn-link text-danger"
+						:disabled="removing"
+						@click="remove"
+					>
+						<span
+							v-if="removing"
+							class="spinner-border spinner-border-sm"
+							role="status"
+							aria-hidden="true"
+						></span>
+						{{ $t("config.general.remove") }}
+					</button>
+				</div>
+
+				<button
+					type="submit"
+					class="btn btn-primary order-1 order-sm-2 flex-grow-1 flex-sm-grow-0 px-4"
+					:disabled="saving || nothingChanged"
+				>
+					<span
+						v-if="saving"
+						class="spinner-border spinner-border-sm"
+						role="status"
+						aria-hidden="true"
+					></span>
+					{{ $t("config.general.save") }}
+				</button>
+			</div>
+		</form>
+	</GenericModal>
+</template>
+
+<script>
+import GenericModal from "../GenericModal.vue";
+import api from "../../api";
+import { docsPrefix } from "../../i18n";
+import store from "../../store";
+
+export default {
+	name: "JsonModal",
+	components: { GenericModal },
+	emits: ["changed", "open"],
+	data() {
+		return {
+			saving: false,
+			removing: false,
+			error: "",
+			values: {},
+			serverValues: {},
+		};
+	},
+	props: {
+		title: String,
+		description: String,
+		errorMessage: String,
+		docs: String,
+		endpoint: String,
+		disableRemove: Boolean,
+		noButtons: Boolean,
+		transformReadValues: Function,
+		stateKey: String,
+		saveMethod: { type: String, default: "post" },
+	},
+	computed: {
+		docsLink() {
+			return this.docs ? `${docsPrefix()}${this.docs}` : null;
+		},
+		nothingChanged() {
+			return JSON.stringify(this.values) === JSON.stringify(this.serverValues);
+		},
+	},
+	methods: {
+		reset() {
+			this.saving = false;
+			this.deleting = false;
+			this.error = "";
+			this.values = "";
+			this.serverValues = "";
+		},
+		async open() {
+			this.$emit("open");
+			this.reset();
+			await this.load();
+		},
+		async load() {
+			this.serverValues = this.stateKey ? store.state[this.stateKey] : store.state;
+			if (this.transformReadValues) {
+				this.serverValues = this.transformReadValues(this.serverValues);
+			}
+			this.values = { ...this.serverValues };
+		},
+		async save() {
+			this.saving = true;
+			this.error = "";
+			try {
+				const res = await api[this.saveMethod](this.endpoint, this.values, {
+					validateStatus: (code) => [200, 202, 400].includes(code),
+				});
+				if (res.status === 200 || res.status === 202) {
+					this.$emit("changed");
+					this.$refs.modal.close();
+				}
+				if (res.status === 400) {
+					this.error = res.data.error;
+				}
+			} catch (e) {
+				console.error(e);
+			}
+			this.saving = false;
+		},
+		async remove() {
+			this.removing = true;
+			this.error = "";
+			try {
+				const res = await api.delete(this.endpoint, {
+					validateStatus: (code) => [200, 400].includes(code),
+				});
+				if (res.status === 200) {
+					this.$emit("changed");
+					this.$refs.modal.close();
+				}
+				if (res.status === 400) {
+					this.error = res.data.error;
+				}
+			} catch (e) {
+				console.error(e);
+			}
+			this.removing = false;
+		},
+	},
+};
+</script>
+<style scoped>
+.container {
+	margin-left: calc(var(--bs-gutter-x) * -0.5);
+	margin-right: calc(var(--bs-gutter-x) * -0.5);
+	padding-right: 0;
+}
+.btn-cancel {
+	margin-left: -0.75rem;
+}
+</style>
diff --git a/assets/js/components/Config/MessagingModal.vue b/assets/js/components/Config/MessagingModal.vue
new file mode 100644
index 000000000..32747b4c3
--- /dev/null
+++ b/assets/js/components/Config/MessagingModal.vue
@@ -0,0 +1,25 @@
+<template>
+	<YamlModal
+		id="messagingModal"
+		:title="$t('config.messaging.title')"
+		:description="$t('config.messaging.description')"
+		docs="/docs/reference/configuration/messaging"
+		:defaultYaml="defaultYaml"
+		endpoint="/config/messaging"
+		@changed="$emit('changed')"
+	/>
+</template>
+
+<script>
+import YamlModal from "./YamlModal.vue";
+import defaultYaml from "./defaultYaml/messaging.yaml?raw";
+
+export default {
+	name: "MessagingModal",
+	components: { YamlModal },
+	emits: ["changed"],
+	data() {
+		return { defaultYaml: defaultYaml.trim() };
+	},
+};
+</script>
diff --git a/assets/js/components/Config/ModbusProxyModal.vue b/assets/js/components/Config/ModbusProxyModal.vue
new file mode 100644
index 000000000..1bf1de41f
--- /dev/null
+++ b/assets/js/components/Config/ModbusProxyModal.vue
@@ -0,0 +1,26 @@
+<template>
+	<YamlModal
+		id="modbusProxyModal"
+		:title="$t('config.modbusproxy.title')"
+		:description="$t('config.modbusproxy.description')"
+		docs="/docs/reference/configuration/modbusproxy"
+		:defaultYaml="defaultYaml"
+		endpoint="/config/modbusproxy"
+		size="md"
+		@changed="$emit('changed')"
+	/>
+</template>
+
+<script>
+import YamlModal from "./YamlModal.vue";
+import defaultYaml from "./defaultYaml/modbusproxy.yaml?raw";
+
+export default {
+	name: "ModbusProxyModal",
+	components: { YamlModal },
+	emits: ["changed"],
+	data() {
+		return { defaultYaml: defaultYaml.trim() };
+	},
+};
+</script>
diff --git a/assets/js/components/Config/MqttModal.vue b/assets/js/components/Config/MqttModal.vue
new file mode 100644
index 000000000..ee22621aa
--- /dev/null
+++ b/assets/js/components/Config/MqttModal.vue
@@ -0,0 +1,79 @@
+<template>
+	<JsonModal
+		id="mqttModal"
+		:title="$t('config.mqtt.title')"
+		:description="$t('config.mqtt.description')"
+		docs="/docs/reference/configuration/mqtt"
+		endpoint="/config/mqtt"
+		state-key="mqtt"
+		data-testid="mqtt-modal"
+		@changed="$emit('changed')"
+	>
+		<template v-slot:default="{ values }">
+			<FormRow
+				id="mqttBroker"
+				:label="$t('config.mqtt.labelBroker')"
+				example="localhost:1883"
+			>
+				<input id="mqttBroker" v-model="values.broker" class="form-control" required />
+			</FormRow>
+
+			<h6>{{ $t("config.mqtt.publishing") }}</h6>
+			<FormRow
+				id="mqttTopic"
+				:label="$t('config.mqtt.labelTopic')"
+				:help="$t('config.mqtt.descriptionTopic')"
+				example="evcc"
+				optional
+			>
+				<input id="mqttTopic" v-model="values.topic" class="form-control" />
+			</FormRow>
+			<FormRow
+				id="mqttClientId"
+				:label="$t('config.mqtt.labelClientId')"
+				:help="$t('config.mqtt.descriptionClientId')"
+				optional
+			>
+				<input id="mqttClientId" v-model="values.clientID" class="form-control" />
+			</FormRow>
+
+			<h6>{{ $t("config.mqtt.authentication") }}</h6>
+			<FormRow id="mqttUser" :label="$t('config.mqtt.labelUser')" optional>
+				<input id="mqttUser" v-model="values.user" class="form-control" />
+			</FormRow>
+			<FormRow id="mqttPassword" :label="$t('config.mqtt.labelPassword')" optional>
+				<input
+					id="mqttPassword"
+					v-model="values.password"
+					class="form-control"
+					type="password"
+					autocomplete="off"
+				/>
+			</FormRow>
+			<FormRow id="mqttInsecure" :label="$t('config.mqtt.labelInsecure')">
+				<div class="d-flex">
+					<input
+						class="form-check-input"
+						id="mqttInsecure"
+						type="checkbox"
+						v-model="values.insecure"
+					/>
+					<label class="form-check-label ms-2" for="mqttInsecure">
+						{{ $t("config.mqtt.labelCheckInsecure") }}
+					</label>
+				</div>
+			</FormRow>
+		</template>
+	</JsonModal>
+</template>
+
+<script>
+import JsonModal from "./JsonModal.vue";
+import FormRow from "./FormRow.vue";
+
+export default {
+	name: "MqttModal",
+	components: { FormRow, JsonModal },
+	emits: ["changed"],
+};
+</script>
diff --git a/assets/js/components/Config/NetworkModal.vue b/assets/js/components/Config/NetworkModal.vue
new file mode 100644
index 000000000..400bffc9f
--- /dev/null
+++ b/assets/js/components/Config/NetworkModal.vue
@@ -0,0 +1,75 @@
+<template>
+	<JsonModal
+		id="networkModal"
+		:title="$t('config.network.title')"
+		endpoint="/config/network"
+		state-key="network"
+		disable-remove
+		data-testid="network-modal"
+		@changed="$emit('changed')"
+	>
+		<template v-slot:default="{ values }">
+			<FormRow
+				id="networkSchema"
+				:label="$t('config.network.labelSchema')"
+				:help="$t('config.network.descriptionSchema')"
+			>
+				<div class="btn-group" role="group">
+					<input
+						id="networkSchemaHttp"
+						v-model="values.schema"
+						type="radio"
+						class="btn-check"
+						name="networkSchema"
+						value="http"
+						autocomplete="off"
+					/>
+					<label class="btn btn-outline-primary" for="networkSchemaHttp">HTTP</label>
+					<input
+						id="networkSchemaHttps"
+						v-model="values.schema"
+						type="radio"
+						class="btn-check"
+						name="networkSchema"
+						value="https"
+						autocomplete="off"
+					/>
+					<label class="btn btn-outline-primary" for="networkSchemaHttps">HTTPS</label>
+				</div>
+			</FormRow>
+
+			<FormRow
+				id="networkHost"
+				:label="$t('config.network.labelHost')"
+				:help="$t('config.network.descriptionHost')"
+				example="evcc.local"
+			>
+				<input id="networkHost" v-model="values.host" class="form-control" />
+			</FormRow>
+			<FormRow
+				id="networkPort"
+				:label="$t('config.network.labelPort')"
+				:help="$t('config.network.descriptionPort')"
+			>
+				<input
+					id="networkPort"
+					v-model="values.port"
+					class="form-control w-50 me-2 w-50"
+					type="number"
+					example="7070"
+				/>
+			</FormRow>
+		</template>
+	</JsonModal>
+</template>
+
+<script>
+import JsonModal from "./JsonModal.vue";
+import FormRow from "./FormRow.vue";
+
+export default {
+	name: "NetworkModal",
+	components: { FormRow, JsonModal },
+	emits: ["changed"],
+};
+</script>
diff --git a/assets/js/components/Config/SponsorModal.vue b/assets/js/components/Config/SponsorModal.vue
new file mode 100644
index 000000000..e8a3f4456
--- /dev/null
+++ b/assets/js/components/Config/SponsorModal.vue
@@ -0,0 +1,96 @@
+<template>
+	<JsonModal
+		id="sponsorModal"
+		:title="`${$t('config.sponsor.title')} 💚`"
+		:description="$t('config.sponsor.description')"
+		:error-message="$t('config.sponsor.error')"
+		endpoint="/config/sponsortoken"
+		:transform-read-values="transformReadValues"
+		data-testid="sponsor-modal"
+		size="lg"
+		:no-buttons="!showForm"
+		:disable-remove="!hasToken"
+		@changed="$emit('changed')"
+		@open="showForm = false"
+	>
+		<template v-slot:default="{ values }">
+			<SponsorTokenExpires v-bind="sponsor" />
+			<div class="mt-4 mb-3">
+				<Sponsor v-bind="sponsor" />
+			</div>
+			<button
+				v-if="!showForm"
+				type="button"
+				class="btn btn-link text-muted btn-form"
+				@click="showForm = !showForm"
+			>
+				{{ sponsorTokenLabel }}
+			</button>
+			<div v-else>
+				<hr />
+				<FormRow
+					id="sponsorToken"
+					:label="sponsorTokenLabel"
+					:help="
+						$t('config.sponsor.descriptionToken', { url: 'https://sponsor.evcc.io' })
+					"
+					docs-link="/docs/sponsorship"
+					class="mt-4"
+				>
+					<textarea
+						id="sponsorToken"
+						v-model="values.token"
+						required
+						rows="5"
+						spellcheck="false"
+						class="form-control"
+					/>
+				</FormRow>
+			</div>
+		</template>
+	</JsonModal>
+</template>
+
+<script>
+import JsonModal from "./JsonModal.vue";
+import FormRow from "./FormRow.vue";
+import Sponsor, { VICTRON_DEVICE } from "../Sponsor.vue";
+import SponsorTokenExpires from "../SponsorTokenExpires.vue";
+import store from "../../store";
+
+export default {
+	name: "SponsorModal",
+	components: { FormRow, JsonModal, Sponsor, SponsorTokenExpires },
+	emits: ["changed"],
+	data: () => ({
+		showForm: false,
+	}),
+	methods: {
+		transformReadValues() {
+			return { token: "" };
+		},
+	},
+	computed: {
+		sponsor() {
+			return store?.state?.sponsor;
+		},
+		hasToken() {
+			const name = this.sponsor?.name || "";
+			return name !== "" && name !== VICTRON_DEVICE;
+		},
+		sponsorTokenLabel() {
+			return this.hasToken
+				? this.$t("config.sponsor.changeToken")
+				: this.$t("config.sponsor.addToken");
+		},
+	},
+};
+</script>
+<style scoped>
+textarea {
+	font-family: var(--bs-font-monospace);
+}
+.btn-form {
+	margin-left: -0.75rem;
+}
+</style>
diff --git a/assets/js/components/Config/TariffsModal.vue b/assets/js/components/Config/TariffsModal.vue
new file mode 100644
index 000000000..666e7fb0b
--- /dev/null
+++ b/assets/js/components/Config/TariffsModal.vue
@@ -0,0 +1,26 @@
+<template>
+	<YamlModal
+		id="tariffsModal"
+		:title="$t('config.tariffs.title')"
+		:description="$t('config.tariffs.description')"
+		docs="/docs/reference/configuration/tariffs"
+		:defaultYaml="defaultYaml"
+		endpoint="/config/tariffs"
+		data-testid="tariffs-modal"
+		@changed="$emit('changed')"
+	/>
+</template>
+
+<script>
+import YamlModal from "./YamlModal.vue";
+import defaultYaml from "./defaultYaml/tariffs.yaml?raw";
+
+export default {
+	name: "TariffsModal",
+	components: { YamlModal },
+	emits: ["changed"],
+	data() {
+		return { defaultYaml: defaultYaml.trim() };
+	},
+};
+</script>
diff --git a/assets/js/components/Config/TestResult.vue b/assets/js/components/Config/TestResult.vue
index c0ddf2b6d..cd70585e0 100644
--- a/assets/js/components/Config/TestResult.vue
+++ b/assets/js/components/Config/TestResult.vue
@@ -1,21 +1,17 @@
 <template>
-	<div
-		class="alert my-4"
-		:class="{
-			'alert-secondary': unknown || running,
-			'alert-success': success,
-			'alert-danger': failed,
-		}"
-		role="alert"
-	>
+	<div class="test-result my-4 p-4">
 		<div class="d-flex justify-content-between align-items-center">
-			<div>
-				{{ $t("config.validation.label") }}:
+			<strong>
+				<span>{{ $t("config.validation.label") }}: </span>
 				<span v-if="unknown">{{ $t("config.validation.unknown") }}</span>
 				<span v-if="running">{{ $t("config.validation.running") }}</span>
-				<strong v-if="success">{{ $t("config.validation.success") }}</strong>
-				<strong v-if="failed">{{ $t("config.validation.failed") }}</strong>
-			</div>
+				<span class="text-success" v-if="success">
+					{{ $t("config.validation.success") }}
+				</span>
+				<span class="text-danger" v-if="failed">
+					{{ $t("config.validation.failed") }}
+				</span>
+			</strong>
 			<span
 				v-if="running"
 				class="spinner-border spinner-border-sm"
@@ -26,13 +22,13 @@
 				{{ $t("config.validation.validate") }}
 			</a>
 		</div>
-		<hr v-if="error" />
-		<div v-if="error">
+		<hr class="divider" v-if="error" />
+		<div class="text-danger" v-if="error">
 			{{ error }}
 		</div>
-		<hr v-if="result" />
+		<hr class="divider" v-if="result" />
 		<div v-if="result">
-			<DeviceTags :tags="result" />
+			<DeviceTags :tags="result" class="success-values" />
 		</div>
 	</div>
 </template>
@@ -54,3 +50,14 @@ export default {
 	components: { DeviceTags },
 };
 </script>
+<style scoped>
+.test-result {
+	border: 1px solid var(--bs-border-color);
+	border-radius: var(--bs-border-radius);
+}
+.divider {
+	border-top-color: 1px solid var(--bs-border-color);
+	margin-left: -1.5rem;
+	margin-right: -1.5rem;
+}
+</style>
diff --git a/assets/js/components/Config/TitleModal.vue b/assets/js/components/Config/TitleModal.vue
index 057167ea5..9b21ef630 100644
--- a/assets/js/components/Config/TitleModal.vue
+++ b/assets/js/components/Config/TitleModal.vue
@@ -1,90 +1,39 @@
 <template>
-	<GenericModal
+	<JsonModal
 		id="titleModal"
-		ref="modal"
 		:title="$t('config.title.title')"
+		endpoint="/config/site"
+		state-key="siteTitle"
+		save-method="put"
+		:transform-read-values="transformReadValues"
 		data-testid="title-modal"
+		disable-remove
+		@changed="$emit('changed')"
 	>
-		<p class="text-danger" v-if="error">{{ error }}</p>
-		<form ref="form" class="container mx-0 px-0">
+		<template v-slot:default="{ values }">
 			<FormRow
 				id="siteTitle"
 				:label="$t('config.title.label')"
 				:help="$t('config.title.description')"
 			>
-				<input id="siteTitle" v-model="title" class="form-control" />
+				<input id="siteTitle" v-model="values.title" class="form-control" />
 			</FormRow>
-			<div class="my-4 d-flex justify-content-between">
-				<button type="button" class="btn btn-link text-muted" data-bs-dismiss="modal">
-					{{ $t("config.general.cancel") }}
-				</button>
-				<button
-					type="submit"
-					class="btn btn-primary"
-					:disabled="saving"
-					@click.prevent="save"
-				>
-					<span
-						v-if="saving"
-						class="spinner-border spinner-border-sm"
-						role="status"
-						aria-hidden="true"
-					></span>
-					{{ $t("config.general.save") }}
-				</button>
-			</div>
-		</form>
-	</GenericModal>
+		</template>
+	</JsonModal>
 </template>
 
 <script>
-import GenericModal from "../GenericModal.vue";
+import JsonModal from "./JsonModal.vue";
 import FormRow from "./FormRow.vue";
-import api from "../../api";
 
 export default {
 	name: "TitleModal",
-	components: { FormRow, GenericModal },
+	components: { FormRow, JsonModal },
 	emits: ["changed"],
-	data() {
-		return {
-			saving: false,
-			error: "",
-			title: "",
-		};
-	},
-	async mounted() {
-		await this.load();
-	},
 	methods: {
-		async load() {
-			try {
-				const { data } = await api.get("/config/site");
-				this.title = data.result.title;
-			} catch (e) {
-				console.error(e);
-			}
-		},
-		async save() {
-			this.saving = true;
-			this.error = "";
-			try {
-				await api.put("/config/site", { title: this.title });
-				this.$emit("changed");
-				this.$refs.modal.close();
-			} catch (e) {
-				console.error(e);
-				this.error = e.response.data.error;
-			}
-			this.saving = false;
+		transformReadValues(siteTitle) {
+			return { title: siteTitle };
 		},
 	},
 };
 </script>
-<style scoped>
-.container {
-	margin-left: calc(var(--bs-gutter-x) * -0.5);
-	margin-right: calc(var(--bs-gutter-x) * -0.5);
-	padding-right: 0;
-}
-</style>
diff --git a/assets/js/components/Config/UserInterfaceSettings.vue b/assets/js/components/Config/UserInterfaceSettings.vue
index bdef3dda7..da0a905b8 100644
--- a/assets/js/components/Config/UserInterfaceSettings.vue
+++ b/assets/js/components/Config/UserInterfaceSettings.vue
@@ -1,5 +1,4 @@
 <template>
-	<SponsorTokenExpires :sponsorTokenExpires="sponsorTokenExpires" />
 	<div class="container mx-0 px-0">
 		<FormRow id="settingsDesign" :label="$t('settings.theme.label')">
 			<SelectGroup
@@ -40,7 +39,7 @@
 			/>
 		</FormRow>
 		<FormRow id="telemetryEnabled" :label="$t('settings.telemetry.label')">
-			<TelemetrySettings :sponsor="sponsor" class="mt-1 mb-0" />
+			<TelemetrySettings :sponsorActive="!!sponsor.name" class="mt-1 mb-0" />
 		</FormRow>
 		<FormRow id="hiddenFeaturesEnabled" :label="`${$t('settings.hiddenFeatures.label')} 🧪`">
 			<div class="form-check form-switch my-1">
@@ -79,7 +78,6 @@
 
 <script>
 import TelemetrySettings from "../TelemetrySettings.vue";
-import SponsorTokenExpires from "../SponsorTokenExpires.vue";
 import FormRow from "../FormRow.vue";
 import SelectGroup from "../SelectGroup.vue";
 import {
@@ -95,10 +93,9 @@ import { isApp } from "../../utils/native";
 
 export default {
 	name: "UserInterfaceSettings",
-	components: { TelemetrySettings, FormRow, SelectGroup, SponsorTokenExpires },
+	components: { TelemetrySettings, FormRow, SelectGroup },
 	props: {
-		sponsor: String,
-		sponsorTokenExpires: Number,
+		sponsor: Object,
 	},
 	data: function () {
 		return {
diff --git a/assets/js/components/Config/YamlEditor.vue b/assets/js/components/Config/YamlEditor.vue
new file mode 100644
index 000000000..961e87370
--- /dev/null
+++ b/assets/js/components/Config/YamlEditor.vue
@@ -0,0 +1,122 @@
+<template>
+	<VueMonacoEditor
+		v-if="active"
+		class="editor"
+		language="yaml"
+		:theme="theme"
+		:options="options"
+		:value="modelValue"
+		ref="editor"
+		@update:value="$emit('update:modelValue', $event)"
+		@mount="ready"
+	>
+		<template #default> {{ $t("config.editor.loading") }} </template>
+		<template #failure>
+			<textarea
+				class="form-control"
+				:rows="lines"
+				:value="modelValue"
+				:disabled="disabled"
+				@input="$emit('update:modelValue', $event.target.value)"
+			/>
+		</template>
+	</VueMonacoEditor>
+</template>
+
+<script>
+import { VueMonacoEditor, loader } from "@guolao/vue-monaco-editor";
+const $html = document.querySelector("html");
+export default {
+	name: "YamlEditor",
+	props: {
+		modelValue: String,
+		errorLine: Number,
+		disabled: Boolean,
+	},
+	components: { VueMonacoEditor },
+	emits: ["update:modelValue"],
+	data() {
+		return {
+			theme: "vs",
+			defaultOptions: {
+				automaticLayout: true,
+				formatOnType: true,
+				formatOnPaste: true,
+				minimap: { enabled: false },
+				showFoldingControls: "always",
+				scrollBeyondLastLine: false,
+				wordWrap: "off",
+				wrappingStrategy: "advanced",
+				overviewRulerLanes: 0,
+			},
+			active: true,
+		};
+	},
+	mounted() {
+		this.updateTheme();
+		$html.addEventListener("themechange", this.updateTheme);
+	},
+	watch: {
+		errorLine() {
+			// force rerender to update decorations
+			this.active = false;
+			this.$nextTick(() => (this.active = true));
+		},
+	},
+	computed: {
+		options() {
+			return { ...this.defaultOptions, readOnly: this.disabled };
+		},
+		lines() {
+			return (this.modelValue || "").split("\n").length;
+		},
+	},
+	beforeMount() {
+		loader.config({
+			paths: { vs: "https://cdn.jsdelivr.net/npm/monaco-editor@0.45.0/min/vs" },
+		});
+		loader.init();
+	},
+	unmounted() {
+		$html.removeEventListener("themechange", this.updateTheme);
+	},
+	methods: {
+		updateTheme() {
+			this.theme = $html.classList.contains("dark") ? "vs-dark" : "vs";
+		},
+		ready(editor, monaco) {
+			let decorations = null;
+			const highlight = () => {
+				decorations?.clear();
+				if (this.errorLine) {
+					decorations = editor.createDecorationsCollection([
+						{
+							range: new monaco.Range(this.errorLine, 1, this.errorLine, 1),
+							options: {
+								isWholeLine: true,
+								className: "error",
+								lineNumberClassName: "error",
+								marginClassName: "error",
+							},
+						},
+					]);
+				}
+			};
+			editor.onDidChangeModelContent(() => highlight());
+			highlight();
+		},
+	},
+};
+</script>
+<style scoped>
+.editor :global(.monaco-editor) {
+	--vscode-editor-background: var(--evcc-box) !important;
+	--vscode-editorGutter-background: var(--evcc-box-border) !important;
+}
+.editor :global(.error) {
+	background-color: var(--bs-danger-50) !important;
+}
+.editor {
+	border: 1px solid var(--bs-border-color);
+}
+</style>
diff --git a/assets/js/components/Config/YamlModal.vue b/assets/js/components/Config/YamlModal.vue
new file mode 100644
index 000000000..6e9a11560
--- /dev/null
+++ b/assets/js/components/Config/YamlModal.vue
@@ -0,0 +1,145 @@
+<template>
+	<GenericModal ref="modal" :size="size" :title="title" @open="open">
+		<p v-if="description || docsLink">
+			<span v-if="description">{{ description + " " }}</span>
+			<a v-if="docsLink" :href="docsLink" target="_blank">
+				{{ $t("config.general.docsLink") }}
+			</a>
+		</p>
+		<p class="text-danger" v-if="error" data-testid="error">{{ error }}</p>
+		<form ref="form" class="container mx-0 px-0">
+			<div class="editor-container" :style="{ height }">
+				<YamlEditor v-model="yaml" class="editor" :errorLine="errorLine" />
+			</div>
+
+			<div class="mt-4 d-flex justify-content-between">
+				<button
+					type="button"
+					class="btn btn-link text-muted btn-cancel"
+					data-bs-dismiss="modal"
+				>
+					{{ $t("config.general.cancel") }}
+				</button>
+				<button
+					type="submit"
+					class="btn btn-primary"
+					:disabled="saving || nothingChanged"
+					@click.prevent="save"
+				>
+					<span
+						v-if="saving"
+						class="spinner-border spinner-border-sm"
+						role="status"
+						aria-hidden="true"
+					></span>
+					{{ $t("config.general.save") }}
+				</button>
+			</div>
+		</form>
+	</GenericModal>
+</template>
+
+<script>
+import GenericModal from "../GenericModal.vue";
+import api from "../../api";
+import { docsPrefix } from "../../i18n";
+import YamlEditor from "./YamlEditor.vue";
+
+export default {
+	name: "YamlModal",
+	components: { GenericModal, YamlEditor },
+	emits: ["changed"],
+	data() {
+		return {
+			saving: false,
+			error: "",
+			errorLine: undefined,
+			yaml: "",
+			serverYaml: "",
+		};
+	},
+	props: {
+		title: String,
+		description: String,
+		docs: String,
+		endpoint: String,
+		defaultYaml: String,
+		size: { type: String, default: "xl" },
+	},
+	computed: {
+		docsLink() {
+			return `${docsPrefix()}${this.docs}`;
+		},
+		height() {
+			return Math.max(150, this.yaml.split("\n").length * 18) + 22 + "px";
+		},
+		nothingChanged() {
+			return this.yaml === this.serverYaml && this.yaml !== "";
+		},
+	},
+	methods: {
+		reset() {
+			this.yaml = "";
+			this.serverYaml = "";
+			this.error = "";
+			this.saving = false;
+			this.errorLine = undefined;
+		},
+		async open() {
+			this.reset();
+			await this.load();
+		},
+		async load() {
+			try {
+				const { data } = await api.get(this.endpoint);
+				this.serverYaml = data.result;
+				this.yaml = data.result || this.defaultYaml;
+			} catch (e) {
+				console.error(e);
+			}
+		},
+		async save() {
+			this.saving = true;
+			this.error = "";
+			this.errorLine = undefined;
+			try {
+				const data = this.yaml === this.defaultYaml ? "" : this.yaml;
+				const res = await api.post(this.endpoint, data, {
+					validateStatus: (code) => [200, 400].includes(code),
+				});
+				if (res.status === 200) {
+					this.$emit("changed");
+					this.$refs.modal.close();
+				}
+				if (res.status === 400) {
+					this.error = res.data.error;
+					this.errorLine = res.data.line;
+				}
+			} catch (e) {
+				console.error(e);
+			}
+			this.saving = false;
+		},
+	},
+};
+</script>
+<style scoped>
+.container {
+	margin-left: calc(var(--bs-gutter-x) * -0.5);
+	margin-right: calc(var(--bs-gutter-x) * -0.5);
+	padding-right: 0;
+}
+.editor-container {
+	margin: 0 -1rem 0 -1.25rem;
+}
+/* reset margins on lg */
+@media (min-width: 992px) {
+	.editor-container {
+		margin: 0;
+	}
+}
+
+.btn-cancel {
+	margin-left: -0.75rem;
+}
+</style>
diff --git a/assets/js/components/Config/defaultYaml/circuits.yaml b/assets/js/components/Config/defaultYaml/circuits.yaml
new file mode 100644
index 000000000..7538f358a
--- /dev/null
+++ b/assets/js/components/Config/defaultYaml/circuits.yaml
@@ -0,0 +1,18 @@
+# - name: main # unique name, used as reference, e.g. as parent in other circuits
+#   title: Main Circuit # used in the UI
+#   maxCurrent: 63 # 63A main circuit breaker (optional)
+#   maxPower: 30000 # 30kW (optional)
+#   meter: grid # associated meter to monitor the power consumption (optional)
+#   parent: # no parent, this is the root circuit
+# - name: garage # unique name, used as reference, e.g. to associate loadpoints
+#   title: Garage # used in the UI
+#   maxCurrent: 24 # allow individual phase use up to 24A
+#   maxPower: 11000 # limit total power to 11kW
+#   meter: garage # dedicated meter for the garage
+#   parent: main # parent to the main circuit
+# - name: carport # unique name, used as reference, e.g. to associate loadpoints
+#   title: Carport # used in the UI
+#   maxCurrent: 32 # 32A circuit breaker
+#   maxPower: # no limit, only check current
+#   meter: # no meter, using data from loadpoints
+#   parent: main # parent to the main circuit
diff --git a/assets/js/components/Config/defaultYaml/eebus.yaml b/assets/js/components/Config/defaultYaml/eebus.yaml
new file mode 100644
index 000000000..15a5ca0fc
--- /dev/null
+++ b/assets/js/components/Config/defaultYaml/eebus.yaml
@@ -0,0 +1,12 @@
+# shipid: EVCC-1234567890abcdef
+# interfaces:
+#   - eth0
+# certificate:
+#   public: |
+#     -----BEGIN CERTIFICATE-----
+#     1234567890abcdef==
+#     -----END CERTIFICATE-----
+#   private: |
+#     -----BEGIN EC PRIVATE KEY-----
+#     1234567890abcdef
+#     -----END EC PRIVATE KEY-----
diff --git a/assets/js/components/Config/defaultYaml/hems.yaml b/assets/js/components/Config/defaultYaml/hems.yaml
new file mode 100644
index 000000000..73b62122b
--- /dev/null
+++ b/assets/js/components/Config/defaultYaml/hems.yaml
@@ -0,0 +1,4 @@
+# type: sma
+# allowcontrol: false
+# vendorid: AAAAAAAA
+# deviceid: BBBBBBBB
diff --git a/assets/js/components/Config/defaultYaml/messaging.yaml b/assets/js/components/Config/defaultYaml/messaging.yaml
new file mode 100644
index 000000000..5f75ed8ac
--- /dev/null
+++ b/assets/js/components/Config/defaultYaml/messaging.yaml
@@ -0,0 +1,35 @@
+# events:
+#   start:
+#     title: Charge started
+#     msg: Started charging in "${mode}" mode
+#   stop:
+#     title: Charge finished
+#     msg: Finished charging ${chargedEnergy:%.1fk}kWh in ${chargeDuration}.
+#   connect:
+#     title: Car connected
+#     msg: "Car connected at ${pvPower:%.1fk}kW PV"
+#   disconnect:
+#     title: Car disconnected
+#     msg: Car disconnected after ${connectedDuration}
+#   soc:
+#     title: Soc updated
+#     msg: Battery charged to ${vehicleSoc:%.0f}%
+#   guest:
+#     title: Unknown vehicle
+#     msg: Unknown vehicle, guest connected?
+
+# services:
+# - type: pushover
+#   app: # app id
+#   recipients:
+#   - # list of recipient ids
+# - type: telegram
+#   token: # bot id
+#   chats:
+#   - # list of chat ids
+# - type: email
+#   uri: smtp://<user>:<password>@<host>:<port>/?fromAddress=<from>&toAddresses=<to>
+# - type: ntfy
+#   uri: https://<host>/<topics>
+#   priority: <priority>
+#   tags: <tags>
diff --git a/assets/js/components/Config/defaultYaml/modbusproxy.yaml b/assets/js/components/Config/defaultYaml/modbusproxy.yaml
new file mode 100644
index 000000000..529089ae2
--- /dev/null
+++ b/assets/js/components/Config/defaultYaml/modbusproxy.yaml
@@ -0,0 +1,9 @@
+# - port: 5021
+#   uri: 192.0.2.2:502
+# - port: 5022
+#   device: /dev/ttyUSB0
+#   baudrate: 9600
+#   comset: "8N1"
+# - port: 5023
+#   uri: 192.0.2.3:502
+#   rtu: true
diff --git a/assets/js/components/Config/defaultYaml/tariffs.yaml b/assets/js/components/Config/defaultYaml/tariffs.yaml
new file mode 100644
index 000000000..1f31229f1
--- /dev/null
+++ b/assets/js/components/Config/defaultYaml/tariffs.yaml
@@ -0,0 +1,13 @@
+# currency: EUR
+
+# grid: # price using energy from the grid
+#   type: fixed
+#   price: 0.294 # EUR/kWh
+
+# feedin: # price for feeding solar energy to the grid
+#   type: fixed
+#   price: 0.08 # EUR/kWh
+
+# co2: # carbon intensity forecast data
+#   type: grünstromindex
+#   zip: <zip>
diff --git a/assets/js/components/Footer.vue b/assets/js/components/Footer.vue
index a97bc072e..9d4168bfe 100644
--- a/assets/js/components/Footer.vue
+++ b/assets/js/components/Footer.vue
@@ -3,7 +3,7 @@
 		<div class="container py-2">
 			<div class="d-flex justify-content-between">
 				<Version v-bind="version" />
-				<Savings v-bind="savings" :sponsor="sponsor" />
+				<Savings v-bind="savings" />
 			</div>
 		</div>
 	</footer>
@@ -20,7 +20,6 @@ export default {
 	components: { Version, Savings },
 	props: {
 		version: Object,
-		sponsor: String,
 		savings: Object,
 	},
 };
diff --git a/assets/js/components/GlobalSettingsModal.vue b/assets/js/components/GlobalSettingsModal.vue
index 6cb6a4c10..71a4ff5f1 100644
--- a/assets/js/components/GlobalSettingsModal.vue
+++ b/assets/js/components/GlobalSettingsModal.vue
@@ -20,10 +20,7 @@
 						></button>
 					</div>
 					<div class="modal-body">
-						<UserInterfaceSettings
-							:sponsor="sponsor"
-							:sponsorTokenExpires="sponsorTokenExpires"
-						/>
+						<UserInterfaceSettings :sponsor="sponsor" />
 					</div>
 				</div>
 			</div>
@@ -38,8 +35,7 @@ export default {
 	name: "GlobalSettingsModal",
 	components: { UserInterfaceSettings },
 	props: {
-		sponsor: String,
-		sponsorTokenExpires: Number,
+		sponsor: { type: Object, default: () => ({}) },
 	},
 };
 </script>
diff --git a/assets/js/components/HelpModal.vue b/assets/js/components/HelpModal.vue
index fe7f2e740..26cc4ee62 100644
--- a/assets/js/components/HelpModal.vue
+++ b/assets/js/components/HelpModal.vue
@@ -139,7 +139,7 @@
 <script>
 import Modal from "bootstrap/js/dist/modal";
 import { docsPrefix } from "../i18n";
-import api from "../api";
+import { performRestart } from "../restart";
 
 export default {
 	name: "HelpModal",
@@ -159,11 +159,7 @@ export default {
 			modal.show();
 		},
 		async restartConfirmed() {
-			try {
-				await api.post("/system/shutdown");
-			} catch (e) {
-				alert("Unabled to restart server.");
-			}
+			await performRestart();
 		},
 	},
 };
diff --git a/assets/js/components/MaterialIcon/Circuits.vue b/assets/js/components/MaterialIcon/Circuits.vue
new file mode 100644
index 000000000..2a7e78ee4
--- /dev/null
+++ b/assets/js/components/MaterialIcon/Circuits.vue
@@ -0,0 +1,17 @@
+<template>
+	<svg :style="svgStyle" viewBox="0 0 24 24">
+		<path
+			fill="currentColor"
+			d="M4 21q-1.25 0-2.125-.875T1 18t.875-2.125T4 15q.225 0 .438.038t.412.087L8.9 9.55q-.425-.525-.663-1.175T8 7q0-1.65 1.175-2.825T12 3t2.825 1.175T16 7q0 .725-.25 1.375t-.675 1.175l4.075 5.575q.2-.05.413-.088T20 15q1.25 0 2.125.875T23 18t-.875 2.125T20 21t-2.125-.875T17 18q0-.475.138-.913t.387-.787l-4.05-5.575q-.125.05-.237.075t-.238.075v4.3q.875.3 1.438 1.075T15 18q0 1.25-.875 2.125T12 21t-2.125-.875T9 18q0-.975.563-1.737T11 15.174v-4.3q-.125-.05-.238-.075t-.237-.075L6.475 16.3q.25.35.388.788T7 18q0 1.25-.875 2.125T4 21m0-2q.425 0 .713-.288T5 18t-.288-.712T4 17t-.712.288T3 18t.288.713T4 19m8 0q.425 0 .713-.288T13 18t-.288-.712T12 17t-.712.288T11 18t.288.713T12 19m8 0q.425 0 .713-.288T21 18t-.288-.712T20 17t-.712.288T19 18t.288.713T20 19M12 9q.825 0 1.413-.587T14 7t-.587-1.412T12 5t-1.412.588T10 7t.588 1.413T12 9"
+		/>
+	</svg>
+</template>
+
+<script>
+import icon from "../../mixins/icon";
+
+export default {
+	name: "Circuits",
+	mixins: [icon],
+};
+</script>
diff --git a/assets/js/components/MaterialIcon/Edit.vue b/assets/js/components/MaterialIcon/Edit.vue
new file mode 100644
index 000000000..3858ab208
--- /dev/null
+++ b/assets/js/components/MaterialIcon/Edit.vue
@@ -0,0 +1,17 @@
+<template>
+	<svg :style="svgStyle" viewBox="0 0 24 24">
+		<path
+			fill="currentColor"
+			d="M5 19h1.425L16.2 9.225L14.775 7.8L5 17.575zm-1 2q-.425 0-.712-.288T3 20v-2.425q0-.4.15-.763t.425-.637L16.2 3.575q.3-.275.663-.425t.762-.15t.775.15t.65.45L20.425 5q.3.275.437.65T21 6.4q0 .4-.138.763t-.437.662l-12.6 12.6q-.275.275-.638.425t-.762.15zM19 6.4L17.6 5zm-3.525 2.125l-.7-.725L16.2 9.225z"
+		/>
+	</svg>
+</template>
+
+<script>
+import icon from "../../mixins/icon";
+
+export default {
+	name: "Edit",
+	mixins: [icon],
+};
+</script>
diff --git a/assets/js/components/MaterialIcon/Eebus.vue b/assets/js/components/MaterialIcon/Eebus.vue
new file mode 100644
index 000000000..49ce8f5cd
--- /dev/null
+++ b/assets/js/components/MaterialIcon/Eebus.vue
@@ -0,0 +1,21 @@
+<template>
+	<svg :style="svgStyle" viewBox="0 0 32 32">
+		<path
+			d="M15.998,8.095c1.369,-0 2.669,0.219 3.902,0.657c1.232,0.438 2.349,1.04 3.352,1.807c0.365,0.273 0.553,0.634 0.562,1.081c0.01,0.448 -0.15,0.835 -0.48,1.163c-0.31,0.31 -0.693,0.47 -1.149,0.48c-0.456,0.009 -0.867,-0.114 -1.232,-0.37c-0.693,-0.475 -1.46,-0.849 -2.299,-1.123c-0.84,-0.273 -1.725,-0.41 -2.656,-0.41c-0.93,-0 -1.815,0.137 -2.655,0.41c-0.839,0.274 -1.606,0.648 -2.299,1.123c-0.365,0.255 -0.776,0.374 -1.232,0.356c-0.456,-0.019 -0.84,-0.183 -1.15,-0.493c-0.31,-0.329 -0.465,-0.716 -0.465,-1.163c-0,-0.447 0.182,-0.807 0.547,-1.082c1.004,-0.766 2.122,-1.364 3.354,-1.793c1.232,-0.43 2.532,-0.644 3.9,-0.643m0,-6.57c2.281,0 4.43,0.374 6.447,1.123c2.017,0.748 3.828,1.806 5.433,3.175c0.365,0.31 0.557,0.693 0.575,1.15c0.019,0.456 -0.137,0.848 -0.465,1.177c-0.31,0.31 -0.693,0.47 -1.15,0.479c-0.456,0.01 -0.867,-0.132 -1.232,-0.425c-1.313,-1.076 -2.787,-1.911 -4.42,-2.504c-1.633,-0.592 -3.362,-0.889 -5.188,-0.89c-1.825,-0.001 -3.554,0.296 -5.186,0.89c-1.633,0.595 -3.106,1.429 -4.422,2.504c-0.365,0.292 -0.775,0.434 -1.232,0.425c-0.456,-0.008 -0.839,-0.168 -1.149,-0.479c-0.329,-0.329 -0.484,-0.721 -0.466,-1.177c0.019,-0.457 0.21,-0.84 0.575,-1.15c1.606,-1.369 3.418,-2.427 5.434,-3.175c2.017,-0.749 4.166,-1.123 6.446,-1.123"
+			fill="currentColor"
+		/>
+		<path
+			d="M15.992,23.961c-1.368,0 -2.669,-0.219 -3.901,-0.657c-1.232,-0.437 -2.35,-1.04 -3.353,-1.806c-0.365,-0.274 -0.552,-0.635 -0.561,-1.082c-0.01,-0.447 0.15,-0.835 0.479,-1.163c0.31,-0.31 0.694,-0.47 1.15,-0.479c0.456,-0.01 0.867,0.113 1.232,0.37c0.693,0.474 1.46,0.848 2.299,1.122c0.84,0.274 1.725,0.411 2.655,0.411c0.931,-0 1.816,-0.137 2.656,-0.411c0.839,-0.274 1.605,-0.648 2.299,-1.122c0.365,-0.256 0.776,-0.374 1.232,-0.356c0.456,0.018 0.839,0.182 1.149,0.493c0.311,0.328 0.466,0.716 0.466,1.162c-0,0.447 -0.183,0.808 -0.548,1.082c-1.003,0.767 -2.121,1.365 -3.353,1.794c-1.233,0.429 -2.533,0.643 -3.901,0.642m0,6.57c-2.281,0 -4.43,-0.374 -6.447,-1.122c-2.017,-0.748 -3.828,-1.807 -5.433,-3.176c-0.365,-0.31 -0.556,-0.693 -0.575,-1.149c-0.018,-0.456 0.137,-0.849 0.466,-1.177c0.31,-0.311 0.693,-0.47 1.149,-0.48c0.457,-0.009 0.867,0.132 1.232,0.425c1.314,1.077 2.788,1.911 4.421,2.504c1.632,0.593 3.362,0.89 5.187,0.89c1.826,0.001 3.555,-0.296 5.187,-0.89c1.632,-0.594 3.106,-1.429 4.421,-2.504c0.365,-0.292 0.776,-0.434 1.232,-0.425c0.456,0.009 0.84,0.169 1.15,0.48c0.328,0.328 0.484,0.721 0.465,1.177c-0.018,0.456 -0.21,0.839 -0.575,1.149c-1.605,1.369 -3.417,2.428 -5.434,3.176c-2.017,0.748 -4.165,1.122 -6.446,1.122"
+			fill="currentColor"
+		/>
+	</svg>
+</template>
+
+<script>
+import icon from "../../mixins/icon";
+
+export default {
+	name: "Eebus",
+	mixins: [icon],
+};
+</script>
diff --git a/assets/js/components/MaterialIcon/Hems.vue b/assets/js/components/MaterialIcon/Hems.vue
new file mode 100644
index 000000000..056e7bdb8
--- /dev/null
+++ b/assets/js/components/MaterialIcon/Hems.vue
@@ -0,0 +1,17 @@
+<template>
+	<svg :style="svgStyle" viewBox="0 0 24 24">
+		<path
+			fill="currentColor"
+			d="M3 11q0 1.8 1.15 3.175T7.075 15.9l-.775-.775q-.275-.275-.275-.687t.275-.713q.3-.3.713-.3t.712.3L10.3 16.3q.3.3.3.7t-.3.7l-2.6 2.6q-.275.275-.7.275t-.725-.3Q6 20 6 19.6t.275-.7l.9-.95q-2.65-.3-4.412-2.287T1 11q0-2.925 2.038-4.962T8 4h2q.425 0 .713.288T11 5t-.288.713T10 6H8Q5.925 6 4.463 7.463T3 11m11 9q-.425 0-.712-.288T13 19v-5q0-.425.288-.712T14 13h7q.425 0 .713.288T22 14v5q0 .425-.288.713T21 20zm0-9q-.425 0-.712-.288T13 10V5q0-.425.288-.712T14 4h7q.425 0 .713.288T22 5v5q0 .425-.288.713T21 11zm1-2h5V6h-5z"
+		/>
+	</svg>
+</template>
+
+<script>
+import icon from "../../mixins/icon";
+
+export default {
+	name: "Hems",
+	mixins: [icon],
+};
+</script>
diff --git a/assets/js/components/MaterialIcon/Influx.vue b/assets/js/components/MaterialIcon/Influx.vue
new file mode 100644
index 000000000..638a658c7
--- /dev/null
+++ b/assets/js/components/MaterialIcon/Influx.vue
@@ -0,0 +1,17 @@
+<template>
+	<svg :style="svgStyle" viewBox="0 0 24 24">
+		<path
+			fill="currentColor"
+			d="m23.778 14.482l-2.287-9.959c-.13-.545-.624-1.09-1.169-1.248L9.87.051C9.74 0 9.584 0 9.426 0c-.443 0-.909.18-1.222.443L.716 7.412C.3 7.776.092 8.504.222 9.024l2.445 10.662c.13.545.624 1.092 1.169 1.248l9.775 3.015c.13.051.285.051.443.051c.443 0 .91-.18 1.223-.443l8.007-7.435c.418-.39.624-1.092.494-1.64M10.962 2.417l7.175 2.21c.285.08.285.21 0 .286l-3.77.858c-.285.08-.674-.05-.883-.26l-2.626-2.834c-.235-.232-.184-.336.104-.26m4.47 12.872c.079.286-.105.444-.39.365l-7.748-2.392c-.285-.079-.338-.313-.13-.52l5.93-5.514c.209-.209.443-.13.52.156zM2.667 8.267l6.293-5.85c.21-.209.545-.18.754.025L12.86 5.85c.209.21.18.545-.026.754l-6.293 5.85c-.21.21-.545.181-.754-.025L2.64 9.024a.536.536 0 0 1 .026-.757zm1.536 9.284L2.54 10.244c-.08-.285.05-.34.234-.13L5.4 12.949c.209.209.285.624.209.909L4.462 17.55c-.079.285-.208.285-.26 0zm9.202 4.264l-8.217-2.522a.547.547 0 0 1-.364-.675l1.378-4.421a.547.547 0 0 1 .675-.365l8.216 2.522c.285.079.443.39.364.675L14.08 21.45a.553.553 0 0 1-.674.365zm7.279-5.98L15.2 20.93c-.209.209-.31.13-.234-.155l1.144-3.694c.079-.285.39-.573.674-.624l3.77-.858c.288-.076.339.054.13.234zm.598-1.09l-4.523 1.039a.534.534 0 0 1-.65-.39l-1.922-8.372a.534.534 0 0 1 .39-.65L19.1 5.335a.534.534 0 0 1 .649.39l1.923 8.371c.079.31-.102.596-.39.65Z"
+		/>
+	</svg>
+</template>
+
+<script>
+import icon from "../../mixins/icon";
+
+export default {
+	name: "Influx",
+	mixins: [icon],
+};
+</script>
diff --git a/assets/js/components/MaterialIcon/ModbusProxy.vue b/assets/js/components/MaterialIcon/ModbusProxy.vue
new file mode 100644
index 000000000..6da4061d9
--- /dev/null
+++ b/assets/js/components/MaterialIcon/ModbusProxy.vue
@@ -0,0 +1,17 @@
+<template>
+	<svg :style="svgStyle" viewBox="0 0 24 24">
+		<path
+			fill="currentColor"
+			d="M15 19v-1h-2q-.825 0-1.412-.587T11 16V8H9v1q0 .825-.587 1.413T7 11H4q-.825 0-1.412-.587T2 9V5q0-.825.588-1.412T4 3h3q.825 0 1.413.588T9 5v1h6V5q0-.825.588-1.412T17 3h3q.825 0 1.413.588T22 5v4q0 .825-.587 1.413T20 11h-3q-.825 0-1.412-.587T15 9V8h-2v8h2v-1q0-.825.588-1.412T17 13h3q.825 0 1.413.588T22 15v4q0 .825-.587 1.413T20 21h-3q-.825 0-1.412-.587T15 19M4 5v4zm13 10v4zm0-10v4zm0 4h3V5h-3zm0 10h3v-4h-3zM4 9h3V5H4z"
+		/>
+	</svg>
+</template>
+
+<script>
+import icon from "../../mixins/icon";
+
+export default {
+	name: "ModbusProxy",
+	mixins: [icon],
+};
+</script>
diff --git a/assets/js/components/MaterialIcon/Mqtt.vue b/assets/js/components/MaterialIcon/Mqtt.vue
new file mode 100644
index 000000000..dde328135
--- /dev/null
+++ b/assets/js/components/MaterialIcon/Mqtt.vue
@@ -0,0 +1,33 @@
+<template>
+	<svg :style="svgStyle" viewBox="-40 -40 400 400">
+		<g>
+			<path
+				fill="currentColor"
+				d="M7.1,180.6v117.1c0,8.4,6.8,15.3,15.3,15.3H142C141,239.8,80.9,180.7,7.1,180.6z"
+			/>
+			<path
+				fill="currentColor"
+				d="M7.1,84.1v49.8c99,0.9,179.4,80.7,180.4,179.1h51.7C238.2,186.6,134.5,84.2,7.1,84.1z"
+			/>
+			<path
+				fill="currentColor"
+				d="M312.9,297.6V193.5C278.1,107.2,207.3,38.9,119,7.1H22.4c-8.4,0-15.3,6.8-15.3,15.3v15
+			c152.6,0.9,276.6,124,277.6,275.6h13C306.1,312.9,312.9,306.1,312.9,297.6z"
+			/>
+			<path
+				fill="currentColor"
+				d="M272.6,49.8c14.5,14.4,28.6,31.7,40.4,47.8V22.4c0-8.4-6.8-15.3-15.3-15.3h-77.3
+			C238.4,19.7,256.6,33.9,272.6,49.8z"
+			/>
+		</g>
+	</svg>
+</template>
+
+<script>
+import icon from "../../mixins/icon";
+
+export default {
+	name: "Mqtt",
+	mixins: [icon],
+};
+</script>
diff --git a/assets/js/components/MaterialIcon/Notification.vue b/assets/js/components/MaterialIcon/Notification.vue
new file mode 100644
index 000000000..c7826c2a8
--- /dev/null
+++ b/assets/js/components/MaterialIcon/Notification.vue
@@ -0,0 +1,17 @@
+<template>
+	<svg :style="svgStyle" viewBox="0 0 24 24">
+		<path
+			fill="currentColor"
+			d="M5 19q-.425 0-.712-.288T4 18t.288-.712T5 17h1v-7q0-2.075 1.25-3.687T10.5 4.2v-.7q0-.625.438-1.062T12 2t1.063.438T13.5 3.5v.7q2 .5 3.25 2.113T18 10v7h1q.425 0 .713.288T20 18t-.288.713T19 19zm7 3q-.825 0-1.412-.587T10 20h4q0 .825-.587 1.413T12 22m-4-5h8v-7q0-1.65-1.175-2.825T12 6T9.175 7.175T8 10zm-5-7q-.425 0-.712-.325t-.238-.75q.2-1.875 1.05-3.488t2.175-2.812q.325-.275.738-.25t.662.375t.2.75t-.375.7q-.975.925-1.6 2.15T4.075 9q-.05.425-.35.713T3 10m18 0q-.425 0-.725-.288T19.925 9q-.2-1.425-.825-2.65T17.5 4.2q-.325-.3-.375-.7t.2-.75t.663-.375t.737.25q1.325 1.2 2.175 2.812t1.05 3.488q.05.425-.237.75T21 10"
+		/>
+	</svg>
+</template>
+
+<script>
+import icon from "../../mixins/icon";
+
+export default {
+	name: "Notification",
+	mixins: [icon],
+};
+</script>
diff --git a/assets/js/components/MaterialIcon/Restart.vue b/assets/js/components/MaterialIcon/Restart.vue
new file mode 100644
index 000000000..2465a0ef1
--- /dev/null
+++ b/assets/js/components/MaterialIcon/Restart.vue
@@ -0,0 +1,17 @@
+<template>
+	<svg :style="svgStyle" viewBox="0 0 24 24">
+		<path
+			fill="currentColor"
+			d="M9.825 20.7q-2.575-.725-4.2-2.837T4 13q0-1.425.475-2.713t1.35-2.362q.275-.3.675-.313t.725.313q.275.275.288.675t-.263.75q-.6.775-.925 1.7T6 13q0 2.025 1.188 3.613t3.062 2.162q.325.1.538.375t.212.6q0 .5-.35.788t-.825.162m4.35 0q-.475.125-.825-.175t-.35-.8q0-.3.213-.575t.537-.375q1.875-.6 3.063-2.175T18 13q0-2.5-1.75-4.25T12 7h-.075l.4.4q.275.275.275.7t-.275.7t-.7.275t-.7-.275l-2.1-2.1q-.15-.15-.212-.325T8.55 6t.063-.375t.212-.325l2.1-2.1q.275-.275.7-.275t.7.275t.275.7t-.275.7l-.4.4H12q3.35 0 5.675 2.325T20 13q0 2.725-1.625 4.85t-4.2 2.85"
+		/>
+	</svg>
+</template>
+
+<script>
+import icon from "../../mixins/icon";
+
+export default {
+	name: "Restart",
+	mixins: [icon],
+};
+</script>
diff --git a/assets/js/components/OfflineIndicator.vue b/assets/js/components/OfflineIndicator.vue
index 4b3e45769..9cbbde399 100644
--- a/assets/js/components/OfflineIndicator.vue
+++ b/assets/js/components/OfflineIndicator.vue
@@ -1,23 +1,159 @@
 <template>
-	<div
-		class="fixed-bottom alert alert-secondary d-flex justify-content-center align-items-center mb-0 rounded-0"
-		role="alert"
-	>
-		<shopicon-regular-cloud class="me-2"></shopicon-regular-cloud>
-		{{ $t("offline.message") }}
+	<div>
+		<div class="modal-backdrop" v-if="offline" />
+		<div
+			class="fixed-bottom alert d-flex justify-content-center align-items-center mb-0 rounded-0 p-2"
+			:class="{ visible: visible, 'alert-danger': showError, 'alert-secondary': !showError }"
+			role="alert"
+			data-testid="bottom-banner"
+		>
+			<div v-if="restarting" class="d-flex align-items-center">
+				<button
+					class="btn btn-secondary me-2 btn-sm d-flex align-items-center"
+					type="button"
+					disabled
+				>
+					<span
+						class="spinner-border spinner-border-sm m-1 me-2"
+						role="status"
+						aria-hidden="true"
+					></span>
+					{{ $t("offline.restart") }}
+				</button>
+				{{ $t("offline.restarting") }}
+			</div>
+			<div v-else-if="restartNeeded" class="d-flex align-items-center">
+				<button
+					class="btn btn-secondary me-2 btn-sm d-flex align-items-center"
+					type="button"
+					@click="restart"
+				>
+					<Sync class="restart me-2" />
+					{{ $t("offline.restart") }}
+				</button>
+				{{ $t("offline.restartNeeded") }}
+			</div>
+			<div v-else-if="offline" class="d-flex align-items-center">
+				<CloudOffline class="m-2" />
+				{{ $t("offline.message") }}
+			</div>
+			<div
+				v-else-if="showError"
+				class="d-flex align-items-start container px-4 justify-content-center"
+			>
+				<shopicon-regular-car1
+					size="m"
+					class="fatal-icon flex-grow-0 flex-shrink-0"
+				></shopicon-regular-car1>
+				<div class="mx-4 mt-1">
+					<div>
+						<strong>
+							Error during startup. Check your configuration and restart.
+						</strong>
+					</div>
+					<div v-if="fatal">{{ fatal.error }}</div>
+				</div>
+				<button
+					type="button"
+					class="btn-close mt-1"
+					aria-label="Close"
+					@click="dismissed = true"
+				></button>
+			</div>
+		</div>
 	</div>
 </template>
 
 <script>
-import "@h2d2/shopicons/es/regular/cloud";
+import "@h2d2/shopicons/es/regular/car1";
+import CloudOffline from "./MaterialIcon/CloudOffline.vue";
+import Sync from "./MaterialIcon/Sync.vue";
+import restart, { performRestart, restartComplete } from "../restart";
 
 export default {
 	name: "OfflineIndicator",
+	components: {
+		CloudOffline,
+		Sync,
+	},
+	props: {
+		offline: Boolean,
+		fatal: Object,
+	},
+	data() {
+		return { dismissed: false };
+	},
+	watch: {
+		offline: function () {
+			if (!this.offline) {
+				restartComplete();
+				this.dismissed = false;
+			}
+		},
+	},
+	computed: {
+		restartNeeded() {
+			return restart.restartNeeded;
+		},
+		restarting() {
+			return restart.restarting;
+		},
+		visible() {
+			return this.offline || this.restartNeeded || this.restarting || this.showError;
+		},
+		showError() {
+			return (
+				!this.offline &&
+				!this.restartNeeded &&
+				!this.restarting &&
+				this.fatal?.error &&
+				!this.dismissed
+			);
+		},
+	},
+	methods: {
+		restart() {
+			performRestart();
+		},
+	},
 };
 </script>
-<style>
-.fixed-bottom {
-	/* $zindex-toast https://getbootstrap.com/docs/5.3/layout/z-index/ */
-	z-index: 1090 !important;
+<style scoped>
+.restart {
+	transform: scaleX(-1);
+}
+.alert {
+	opacity: 0;
+	transform: translateY(100%);
+	transition:
+		transform var(--evcc-transition-fast) ease-in,
+		opacity var(--evcc-transition-fast) ease-in;
+	min-height: 58px;
+	/* above backdrop, below modal https://getbootstrap.com/docs/5.3/layout/z-index/ */
+	z-index: 1054 !important;
+}
+.alert.visible {
+	opacity: 1;
+	transform: translateY(0);
+}
+
+.fatal-icon {
+	transform-origin: 60% 40%;
+	animation: swinging 3.5s ease-in-out infinite;
+}
+
+@keyframes swinging {
+	0% {
+		transform: translateY(6px) rotate(170deg);
+	}
+	50% {
+		transform: translateY(6px) rotate(185deg);
+	}
+	100% {
+		transform: translateY(6px) rotate(170deg);
+	}
+}
+.btn-close {
+	filter: none;
 }
 </style>
diff --git a/assets/js/components/Savings.vue b/assets/js/components/Savings.vue
index 210658abc..cc1d092ab 100644
--- a/assets/js/components/Savings.vue
+++ b/assets/js/components/Savings.vue
@@ -179,10 +179,9 @@
 							</div>
 							<div v-else class="my-4">
 								<LiveCommunity />
-								<TelemetrySettings :sponsor="sponsor" />
+								<TelemetrySettings :sponsorActive="!!sponsor.name" />
 							</div>
-
-							<Sponsor :sponsor="sponsor" />
+							<Sponsor v-bind="sponsor" />
 						</div>
 					</div>
 				</div>
@@ -211,7 +210,7 @@ export default {
 	props: {
 		statistics: { type: Object, default: () => ({}) },
 		co2Configured: Boolean,
-		sponsor: String,
+		sponsor: Object,
 		currency: String,
 	},
 	data() {
diff --git a/assets/js/components/Site.vue b/assets/js/components/Site.vue
index 87ba61b28..5e6d27dd7 100644
--- a/assets/js/components/Site.vue
+++ b/assets/js/components/Site.vue
@@ -17,7 +17,11 @@
 			<Energyflow v-bind="energyflow" />
 		</div>
 		<div class="d-flex flex-column justify-content-between content-area">
+			<div v-if="fatal" class="flex-grow-1 align-items-center d-flex justify-content-center">
+				<h1 class="mb-5 text-gray fs-4">{{ $t("startupError.title") }}</h1>
+			</div>
 			<Loadpoints
+				v-else
 				class="mt-1 mt-sm-2 flex-grow-1"
 				:loadpoints="loadpoints"
 				:vehicles="vehicleList"
@@ -93,10 +97,10 @@ export default {
 		hasUpdater: Boolean,
 		uploadMessage: String,
 		uploadProgress: Number,
-		sponsor: String,
-		sponsorTokenExpires: Number,
+		sponsor: { type: Object, default: () => ({}) },
 		smartCostType: String,
 		smartCostActive: Boolean,
+		fatal: Object,
 	},
 	computed: {
 		batteryConfigured: function () {
@@ -143,8 +147,8 @@ export default {
 					uploadMessage: this.uploadMessage,
 					uploadProgress: this.uploadProgress,
 				},
-				sponsor: this.sponsor,
 				savings: {
+					sponsor: this.sponsor,
 					statistics: this.statistics,
 					co2Configured: this.tariffCo2 !== undefined,
 					priceConfigured: this.tariffGrid !== undefined,
@@ -164,4 +168,6 @@ export default {
 	flex-grow: 1;
 	z-index: 1;
 }
+.fatal {
+}
 </style>
diff --git a/assets/js/components/Sponsor.story.vue b/assets/js/components/Sponsor.story.vue
index fc7a1bed0..0c6783412 100644
--- a/assets/js/components/Sponsor.story.vue
+++ b/assets/js/components/Sponsor.story.vue
@@ -14,7 +14,7 @@ import Sponsor from "./Sponsor.vue";
 			<Sponsor sponsor="naltatis" />
 		</Variant>
 		<Variant title="victron device">
-			<Sponsor sponsor="victron-device" />
+			<Sponsor sponsor="victron" />
 		</Variant>
 	</Story>
 </template>
diff --git a/assets/js/components/Sponsor.vue b/assets/js/components/Sponsor.vue
index 4b03b590c..95994dd3e 100644
--- a/assets/js/components/Sponsor.vue
+++ b/assets/js/components/Sponsor.vue
@@ -7,13 +7,14 @@
 			{{ $t(`footer.sponsor.${isVictronDevice ? "titleVictron" : "titleSponsor"}`) }}
 		</p>
 		<p class="mb-3">
-			{{ $t(`footer.sponsor.${isVictronDevice ? "victron" : "thanks"}`, { sponsor }) }}
+			{{ $t(`footer.sponsor.${isVictronDevice ? "victron" : "thanks"}`, { sponsor: name }) }}
 		</p>
 		<div
 			class="d-flex justify-content-center align-items-center flex-column flex-lg-row align-items-lg-baseline justify-content-lg-start"
 		>
 			<button
 				ref="confetti"
+				type="button"
 				class="btn btn btn-outline-primary mb-2 confetti-button bg-evcc rounded flex-shrink-0"
 				@click="surprise"
 			>
@@ -33,7 +34,7 @@
 			</a>
 		</div>
 	</div>
-	<div v-if="!sponsor || isTrial">
+	<div v-if="!name || isTrial">
 		<p class="fw-bold mb-1">
 			<shopicon-regular-clock
 				v-if="isTrial"
@@ -67,20 +68,25 @@ import "@h2d2/shopicons/es/regular/stars";
 import "@h2d2/shopicons/es/regular/clock";
 import { docsPrefix } from "../i18n";
 
+export const TRIAL = "trial";
+export const VICTRON_DEVICE = "victron";
+
 export default {
 	name: "Sponsor",
 	props: {
-		sponsor: String,
+		name: String,
+		expiresAt: String,
+		expiresSoon: Boolean,
 	},
 	computed: {
 		isTrial() {
-			return this.sponsor === "trial";
+			return this.name === TRIAL;
 		},
 		isVictronDevice() {
-			return this.sponsor === "victron-device";
+			return this.name === VICTRON_DEVICE;
 		},
 		isIndividual() {
-			return this.sponsor && !this.isTrial && !this.isVictronDevice;
+			return this.name && !this.isTrial && !this.isVictronDevice;
 		},
 		sponsorLink() {
 			return `${docsPrefix()}/docs/sponsorship`;
diff --git a/assets/js/components/SponsorTokenExpires.story.vue b/assets/js/components/SponsorTokenExpires.story.vue
index 40e7289b6..53132095a 100644
--- a/assets/js/components/SponsorTokenExpires.story.vue
+++ b/assets/js/components/SponsorTokenExpires.story.vue
@@ -4,8 +4,8 @@ import SponsorTokenExpires from "./SponsorTokenExpires.vue";
 
 <template>
 	<Story title="Sponsor Token Expires">
-		<Variant title="in 9 days">
-			<SponsorTokenExpires :sponsorTokenExpires="768423" />
+		<Variant title="some day">
+			<SponsorTokenExpires :sponsorSoon="true" expiresAt="2055-01-01T00:00:00Z" />
 		</Variant>
 		<Variant title="empty">
 			<SponsorTokenExpires />
diff --git a/assets/js/components/SponsorTokenExpires.vue b/assets/js/components/SponsorTokenExpires.vue
index b7e526017..53e55d0c0 100644
--- a/assets/js/components/SponsorTokenExpires.vue
+++ b/assets/js/components/SponsorTokenExpires.vue
@@ -1,6 +1,6 @@
 <template>
-	<div v-if="sponsorTokenExpires" class="alert alert-warning" role="alert">
-		<i18n-t tag="div" class="mb-2" keypath="settings.sponsorToken.expires">
+	<div v-if="expiresSoon" class="alert alert-warning my-4" role="alert">
+		<i18n-t tag="div" keypath="settings.sponsorToken.expires">
 			<template #inXDays>
 				{{ inXDays }}
 			</template>
@@ -11,7 +11,7 @@
 			</template>
 		</i18n-t>
 
-		<em>
+		<em class="d-block mt-2" v-if="!isTrial">
 			{{ $t("settings.sponsorToken.hint") }}
 		</em>
 	</div>
@@ -19,16 +19,22 @@
 
 <script>
 import formatter from "../mixins/formatter";
+import { TRIAL } from "./Sponsor.vue";
 
 export default {
 	name: "SponsorTokenExpires",
 	mixins: [formatter],
 	props: {
-		sponsorTokenExpires: Number,
+		expiresSoon: Boolean,
+		expiresAt: String,
+		name: String,
 	},
 	computed: {
 		inXDays() {
-			return this.fmtTimeAgo(this.sponsorTokenExpires * 1000);
+			return this.fmtTimeAgo(new Date(this.expiresAt) - new Date());
+		},
+		isTrial() {
+			return this.name === TRIAL;
 		},
 	},
 };
diff --git a/assets/js/components/TelemetrySettings.vue b/assets/js/components/TelemetrySettings.vue
index ea755d0c6..a9aadfd03 100644
--- a/assets/js/components/TelemetrySettings.vue
+++ b/assets/js/components/TelemetrySettings.vue
@@ -7,13 +7,13 @@
 			class="form-check-input"
 			type="checkbox"
 			role="switch"
-			:disabled="!sponsor"
+			:disabled="!sponsorActive"
 			@change="change"
 		/>
 		<div class="form-check-label">
 			<label for="telemetryEnabled">
 				{{ $t("footer.telemetry.optIn") }}
-				<i18n-t v-if="sponsor" tag="span" keypath="footer.telemetry.optInMoreDetails">
+				<i18n-t v-if="sponsorActive" tag="span" keypath="footer.telemetry.optInMoreDetails">
 					<a :href="docsLink" target="_blank">
 						{{ $t("footer.telemetry.optInMoreDetailsLink") }}
 					</a>
@@ -40,7 +40,7 @@ function parseMarkdown(markdownText) {
 
 export default {
 	name: "TelemetrySettings",
-	props: { sponsor: String },
+	props: { sponsorActive: Boolean },
 	data() {
 		return {
 			error: null,
diff --git a/assets/js/components/TopNavigation.story.vue b/assets/js/components/TopNavigation.story.vue
index 9ba766008..85dfb6246 100644
--- a/assets/js/components/TopNavigation.story.vue
+++ b/assets/js/components/TopNavigation.story.vue
@@ -36,7 +36,7 @@ import TopNavigation from "./TopNavigation.vue";
 			/>
 		</Variant>
 		<Variant title="token expires">
-			<TopNavigation :sponsorTokenExpires="768423" />
+			<TopNavigation :sponsor="{ expiresSoon: true }" />
 		</Variant>
 	</Story>
 </template>
diff --git a/assets/js/components/TopNavigation.vue b/assets/js/components/TopNavigation.vue
index 3079cf275..2021a91e6 100644
--- a/assets/js/components/TopNavigation.vue
+++ b/assets/js/components/TopNavigation.vue
@@ -10,7 +10,8 @@
 		>
 			<span
 				v-if="showBadge"
-				class="position-absolute top-0 start-100 translate-middle p-2 bg-danger border border-light rounded-circle"
+				class="position-absolute top-0 start-100 translate-middle p-2 rounded-circle"
+				:class="badgeClass"
 			>
 				<span class="visually-hidden">action required</span>
 			</span>
@@ -34,10 +35,6 @@
 					data-testid="topnavigation-settings"
 					@click="openSettingsModal"
 				>
-					<span
-						v-if="sponsorTokenExpires"
-						class="d-inline-block p-1 rounded-circle bg-danger border border-light rounded-circle"
-					></span>
 					{{ $t("settings.title") }}
 				</button>
 			</li>
@@ -53,6 +50,11 @@
 			</li>
 			<li>
 				<router-link class="dropdown-item" to="/config" active-class="active">
+					<span
+						v-if="showBadge"
+						class="d-inline-block p-1 rounded-circle bg-warning rounded-circle"
+						:class="badgeClass"
+					></span>
 					{{ $t("config.main.title") }}
 				</router-link>
 			</li>
@@ -75,7 +77,8 @@
 					>
 						<span
 							v-if="!login.loggedIn"
-							class="d-inline-block p-1 rounded-circle bg-danger border border-light rounded-circle"
+							class="d-inline-block p-1 rounded-circle border border-light rounded-circle"
+							:class="badgeClass"
 						></span>
 						{{ login.title }}
 						{{ $t(login.loggedIn ? "main.provider.logout" : "main.provider.login") }}
@@ -119,7 +122,6 @@ import "@h2d2/shopicons/es/regular/menu";
 import "@h2d2/shopicons/es/regular/newtab";
 import collector from "../mixins/collector";
 import { logout, isLoggedIn, openLoginModal } from "../auth";
-
 import baseAPI from "../baseapi";
 import { isApp, sendToApp } from "../utils/native";
 
@@ -133,9 +135,14 @@ export default {
 				return {};
 			},
 		},
-		sponsor: String,
-		sponsorTokenExpires: Number,
+		sponsor: {
+			type: Object,
+			default: () => {
+				return {};
+			},
+		},
 		battery: Array,
+		fatal: Object,
 	},
 	data() {
 		return {
@@ -161,7 +168,13 @@ export default {
 			return this.logoutCount > 0;
 		},
 		showBadge() {
-			return this.loginRequired || this.sponsorTokenExpires;
+			return this.loginRequired || this.sponsor.expiresSoon || this.fatal?.error;
+		},
+		badgeClass() {
+			if (this.fatal?.error) {
+				return "bg-danger";
+			}
+			return "bg-warning";
 		},
 		batteryModalAvailable() {
 			return this.batteryConfigured;
diff --git a/assets/js/mixins/icon.js b/assets/js/mixins/icon.js
index 8b997cab2..aef71d05b 100644
--- a/assets/js/mixins/icon.js
+++ b/assets/js/mixins/icon.js
@@ -3,13 +3,14 @@ export default {
     size: {
       type: String,
       validator: function (value) {
-        return ["s", "m", "l", "xl"].includes(value);
+        return ["xs", "s", "m", "l", "xl"].includes(value);
       },
     },
   },
   computed: {
     svgStyle() {
       const sizes = {
+        xs: "16px",
         s: "24px",
         m: "32px",
         l: "48px",
diff --git a/assets/js/restart.js b/assets/js/restart.js
new file mode 100644
index 000000000..102d20c9e
--- /dev/null
+++ b/assets/js/restart.js
@@ -0,0 +1,23 @@
+import { reactive } from "vue";
+import api from "./api";
+
+const restart = reactive({
+  restartNeeded: false,
+  restarting: false,
+});
+
+export async function performRestart() {
+  try {
+    await api.post("/system/shutdown");
+    restart.restarting = true;
+  } catch (e) {
+    alert("Unabled to restart server.");
+  }
+}
+
+export function restartComplete() {
+  restart.restarting = false;
+  restart.restartNeeded = false;
+}
+
+export default restart;
diff --git a/assets/js/router.js b/assets/js/router.js
index 3a4af074c..5b338d7b8 100644
--- a/assets/js/router.js
+++ b/assets/js/router.js
@@ -54,10 +54,6 @@ export default function setupRouter(i18n) {
         component: () => import("./views/Log.vue"),
         beforeEnter: ensureAuth,
       },
-      {
-        path: "/error",
-        component: () => import("./views/StartupError.vue"),
-      },
     ],
   });
   router.beforeEach(async () => {
diff --git a/assets/js/views/App.vue b/assets/js/views/App.vue
index 662fbf205..81f5edec7 100644
--- a/assets/js/views/App.vue
+++ b/assets/js/views/App.vue
@@ -7,7 +7,7 @@
 		<HelpModal />
 		<PasswordModal />
 		<LoginModal />
-		<OfflineIndicator v-if="offline" />
+		<OfflineIndicator v-bind="offlineIndicatorProps" />
 	</div>
 </template>
 
@@ -64,15 +64,6 @@ export default {
 		offline: function () {
 			updateAuthStatus();
 		},
-		startupErrors: function (now) {
-			if (now) {
-				console.log("startup errors detected. redirecting to error page");
-				this.$router.push("/error");
-			} else {
-				console.log("startup errors resolved. redirecting to home page");
-				this.$router.push("/");
-			}
-		},
 	},
 	computed: {
 		version: function () {
@@ -87,8 +78,8 @@ export default {
 		batterySettingsProps() {
 			return this.collectProps(BatterySettingsModal, store.state);
 		},
-		startupErrors: function () {
-			return store.state.fatal?.length > 0;
+		offlineIndicatorProps() {
+			return this.collectProps(OfflineIndicator, store.state);
 		},
 	},
 	mounted: function () {
diff --git a/assets/js/views/Config.vue b/assets/js/views/Config.vue
index 5d3f2f7b4..1306c85ea 100644
--- a/assets/js/views/Config.vue
+++ b/assets/js/views/Config.vue
@@ -2,76 +2,48 @@
 	<div class="root safe-area-inset">
 		<div class="container px-4">
 			<TopHeader :title="$t('config.main.title')" />
-			<div class="wrapper">
-				<div
-					v-if="dirty || restarting"
-					class="alert alert-secondary d-flex justify-content-between align-items-center my-4"
-					role="alert"
-				>
-					<div v-if="restarting">
-						<strong>{{ $t("config.system.restartingMessage") }}</strong>
-						{{ $t("config.system.restartingDescription") }}
-					</div>
-					<div v-else>
-						<strong>{{ $t("config.system.restartRequiredMessage") }}</strong>
-						{{ $t("config.system.restartRequiredDescription") }}
-					</div>
-					<button
-						type="button"
-						class="btn btn-outline-dark btn-sm"
-						:disabled="restarting || offline"
-						@click="restart"
-					>
-						<span
-							v-if="restarting || offline"
-							class="spinner-border spinner-border-sm"
-							role="status"
-							aria-hidden="true"
-						></span>
-						<span v-else>{{ $t("config.system.restart") }}</span>
-					</button>
+			<div class="wrapper pb-5">
+				<div class="alert alert-danger my-4 pb-0" role="alert" v-if="$hiddenFeatures()">
+					<p>
+						<strong>Experimental! 🧪</strong>
+						Only use these features if you are in the mood for adventure and not afraid
+						of debugging. Unexpected things and data loss may happen.
+					</p>
+					<p>
+						We are in the progress of replacing <code>evcc.yaml</code> with UI-based
+						configuration. Any changes made here will be written to the database. After
+						that, the corresponding <code>evcc.yaml</code>-values (e.g. network
+						settings) will be ignored.
+					</p>
+					<p class="mb-1"><strong>Missing features</strong></p>
+					<ul>
+						<li>grid meter</li>
+						<li>aux meters</li>
+						<li>loadpoints and chargers</li>
+						<li>custom/plugin meters and vehicles</li>
+						<li>migration for vehicles, chargers, meters, loadpoints</li>
+						<li>remove mixed mode (evcc.yaml + db) for meters and vehicles</li>
+					</ul>
+					<p>
+						<strong>Migration and repair.</strong> Run <code>evcc migrate</code> to copy
+						configuration from <code>evcc.yaml</code> to the database. Existing database
+						configurations will be overwritten. Session and statistics data will not be
+						touched. Run <code>evcc migrate --reset</code> to remove all database
+						configurations.
+					</p>
 				</div>
 
 				<h2 class="my-4 mt-5">{{ $t("config.section.general") }}</h2>
 				<GeneralConfig @site-changed="siteChanged" />
 
-				<h2 class="my-4 mt-5">{{ $t("config.section.system") }}</h2>
-				<div class="round-box p-4 d-flex gap-4">
-					<router-link to="/log" class="btn btn-outline-secondary">
-						{{ $t("config.system.logs") }}
-					</router-link>
-					<button
-						class="btn btn-outline-danger"
-						:disabled="restarting || offline"
-						@click="restart"
-					>
-						<span
-							v-if="restarting || offline"
-							class="spinner-border spinner-border-sm"
-							role="status"
-							aria-hidden="true"
-						></span>
-						{{ $t("config.system.restart") }}
-					</button>
-				</div>
-
 				<div v-if="$hiddenFeatures()">
-					<hr class="my-5" />
-
-					<div class="alert alert-danger my-4" role="alert">
-						<strong>Highly experimental!</strong> Only play around with these settings
-						if you know what you're doing. Otherwise you might have to reset or manually
-						repair your database.
-					</div>
-
-					<h2 class="my-4 mt-5">Grid, PV & Battery Systems</h2>
+					<h2 class="my-4 mt-5">{{ $t("config.section.grid") }} 🧪</h2>
 					<ul class="p-0 config-list">
 						<DeviceCard
-							:name="gridMeter?.config?.template || 'Grid meter'"
-							:unconfigured="!gridMeter"
+							:name="$t('config.grid.title')"
 							:editable="!!gridMeter?.id"
+							:error="deviceError('meter', gridMeter?.name)"
 							data-testid="grid"
-							@configure="addMeter('grid')"
 							@edit="editMeter(gridMeter.id, 'grid')"
 						>
 							<template #icon>
@@ -81,11 +53,29 @@
 								<DeviceTags :tags="deviceTags('meter', gridMeter?.name)" />
 							</template>
 						</DeviceCard>
+						<DeviceCard
+							:name="$t('config.tariffs.title')"
+							editable
+							:error="fatalClass === 'tariff'"
+							data-testid="tariffs"
+							@edit="openModal('tariffsModal')"
+						>
+							<template #icon>
+								<shopicon-regular-receivepayment></shopicon-regular-receivepayment>
+							</template>
+							<template #tags>
+								<DeviceTags :tags="tariffTags" />
+							</template>
+						</DeviceCard>
+					</ul>
+					<h2 class="my-4 mt-5">{{ $t("config.section.meter") }} 🧪</h2>
+					<ul class="p-0 config-list">
 						<DeviceCard
 							v-for="meter in pvMeters"
-							:key="!!meter.name"
+							:key="meter.name"
 							:name="meter.config?.template || 'Solar system'"
 							:editable="!!meter.id"
+							:error="deviceError('meter', meter.name)"
 							data-testid="pv"
 							@edit="editMeter(meter.id, 'pv')"
 						>
@@ -101,6 +91,7 @@
 							:key="meter.name"
 							:name="meter.config?.template || 'Battery storage'"
 							:editable="!!meter.id"
+							:error="deviceError('meter', meter.name)"
 							data-testid="battery"
 							@edit="editMeter(meter.id, 'battery')"
 						>
@@ -114,47 +105,13 @@
 						<AddDeviceButton :title="$t('config.main.addPvBattery')" @add="addMeter" />
 					</ul>
 
-					<h2 class="my-4 wip">Tariffs</h2>
-
-					<ul class="p-0 config-list wip">
-						<DeviceCard
-							name="Grid"
-							unconfigured
-							data-testid="tariff-grid"
-							@configure="todo"
-						>
-							<template #icon>
-								<shopicon-regular-money></shopicon-regular-money>
-							</template>
-						</DeviceCard>
-						<DeviceCard
-							name="Feed-in"
-							unconfigured
-							data-testid="tariff-feedin"
-							@configure="todo"
-						>
-							<template #icon>
-								<shopicon-regular-receivepayment></shopicon-regular-receivepayment>
-							</template>
-						</DeviceCard>
-						<DeviceCard
-							name="CO₂ estimate"
-							unconfigured
-							data-testid="tariff-co2"
-							@configure="todo"
-						>
-							<template #icon>
-								<shopicon-regular-eco1></shopicon-regular-eco1>
-							</template>
-						</DeviceCard>
-					</ul>
-
-					<h2 class="my-4 wip">Charge Points</h2>
+					<h2 class="my-4 wip">{{ $t("config.section.loadpoints") }} 🧪</h2>
 
 					<ul class="p-0 config-list wip">
 						<DeviceCard
 							name="Fake Carport"
 							editable
+							:error="deviceError('charger', 'fake-charger')"
 							data-testid="chargepoint-1"
 							@edit="todo"
 						>
@@ -172,14 +129,15 @@
 						/>
 					</ul>
 
-					<h2 class="my-4">Vehicles</h2>
+					<h2 class="my-4">{{ $t("config.section.vehicles") }} 🧪</h2>
 					<div>
 						<ul class="p-0 config-list">
 							<DeviceCard
 								v-for="vehicle in vehicles"
-								:key="vehicle.id"
+								:key="vehicle.name"
 								:name="vehicle.config?.title || vehicle.name"
 								:editable="vehicle.id >= 0"
+								:error="deviceError('vehicle', vehicle.name)"
 								data-testid="vehicle"
 								@edit="editVehicle(vehicle.id)"
 							>
@@ -196,41 +154,108 @@
 								@click="addVehicle"
 							/>
 						</ul>
-					</div>
-					<h2 class="my-4 wip">Integrations</h2>
 
-					<ul class="p-0 config-list wip">
-						<DeviceCard name="MQTT" unconfigured data-testid="mqtt" @configure="todo">
-							<template #icon>
-								<shopicon-regular-fastdelivery1></shopicon-regular-fastdelivery1>
-							</template>
-						</DeviceCard>
-						<DeviceCard
-							name="Notifications"
-							unconfigured
-							data-testid="eebus"
-							@configure="todo"
-						>
-							<template #icon>
-								<shopicon-regular-sendit></shopicon-regular-sendit>
-							</template>
-						</DeviceCard>
-						<DeviceCard
-							name="InfluxDB"
-							unconfigured
-							data-testid="influx"
-							@configure="todo"
-						>
-							<template #icon>
-								<shopicon-regular-diagram></shopicon-regular-diagram>
-							</template>
-						</DeviceCard>
-						<DeviceCard name="EEBus" unconfigured data-testid="eebus" @configure="todo">
-							<template #icon>
-								<shopicon-regular-polygon></shopicon-regular-polygon>
-							</template>
-						</DeviceCard>
-					</ul>
+						<h2 class="my-4 mt-5">{{ $t("config.section.integrations") }} 🧪</h2>
+
+						<ul class="p-0 config-list">
+							<DeviceCard
+								:name="$t('config.mqtt.title')"
+								editable
+								:error="fatalClass === 'mqtt'"
+								data-testid="mqtt"
+								@edit="openModal('mqttModal')"
+							>
+								<template #icon><MqttIcon /></template>
+								<template #tags>
+									<DeviceTags :tags="mqttTags" />
+								</template>
+							</DeviceCard>
+							<DeviceCard
+								:name="$t('config.messaging.title')"
+								editable
+								:error="fatalClass === 'messenger'"
+								data-testid="messaging"
+								@edit="openModal('messagingModal')"
+							>
+								<template #icon><NotificationIcon /></template>
+								<template #tags>
+									<DeviceTags :tags="yamlTags('messaging')" />
+								</template>
+							</DeviceCard>
+							<DeviceCard
+								:name="$t('config.influx.title')"
+								editable
+								:error="fatalClass === 'influx'"
+								data-testid="influx"
+								@edit="openModal('influxModal')"
+							>
+								<template #icon><InfluxIcon /></template>
+								<template #tags>
+									<DeviceTags :tags="influxTags" />
+								</template>
+							</DeviceCard>
+							<DeviceCard
+								:name="`${$t('config.eebus.title')} 🧪`"
+								editable
+								:error="fatalClass === 'eebus'"
+								data-testid="eebus"
+								@edit="openModal('eebusModal')"
+							>
+								<template #icon><EebusIcon /></template>
+								<template #tags>
+									<DeviceTags :tags="yamlTags('eebus')" />
+								</template>
+							</DeviceCard>
+							<DeviceCard
+								:name="`${$t('config.circuits.title')} 🧪`"
+								editable
+								:error="fatalClass === 'circuit'"
+								data-testid="circuits"
+								@edit="openModal('circuitsModal')"
+							>
+								<template #icon><CircuitsIcon /></template>
+								<template #tags>
+									<DeviceTags :tags="yamlTags('circuits')" />
+								</template>
+							</DeviceCard>
+							<DeviceCard
+								:name="$t('config.modbusproxy.title')"
+								editable
+								:error="fatalClass === 'modbusproxy'"
+								data-testid="modbusproxy"
+								@edit="openModal('modbusProxyModal')"
+							>
+								<template #icon><ModbusProxyIcon /></template>
+								<template #tags>
+									<DeviceTags :tags="yamlTags('modbusproxy')" />
+								</template>
+							</DeviceCard>
+							<DeviceCard
+								:name="$t('config.hems.title')"
+								editable
+								:error="fatalClass === 'hems'"
+								data-testid="hems"
+								@edit="openModal('hemsModal')"
+							>
+								<template #icon><HemsIcon /></template>
+								<template #tags>
+									<DeviceTags :tags="yamlTags('hems')" />
+								</template>
+							</DeviceCard>
+						</ul>
+					</div>
+				</div>
+
+				<hr class="my-5" />
+
+				<h2 class="my-4 mt-5">{{ $t("config.section.system") }}</h2>
+				<div class="round-box p-4 d-flex gap-4 mb-5">
+					<router-link to="/log" class="btn btn-outline-secondary">
+						{{ $t("config.system.logs") }}
+					</router-link>
+					<button class="btn btn-outline-danger" @click="restart">
+						{{ $t("config.system.restart") }}
+					</button>
 				</div>
 
 				<VehicleModal :id="selectedVehicleId" @vehicle-changed="vehicleChanged" />
@@ -242,6 +267,17 @@
 					@updated="meterChanged"
 					@removed="removeMeterFromSite"
 				/>
+				<InfluxModal @changed="loadDirty" />
+				<MqttModal @changed="loadDirty" />
+				<NetworkModal @changed="loadDirty" />
+				<ControlModal @changed="loadDirty" />
+				<SponsorModal @changed="loadDirty" />
+				<HemsModal @changed="yamlChanged" />
+				<MessagingModal @changed="yamlChanged" />
+				<TariffsModal @changed="yamlChanged" />
+				<ModbusProxyModal @changed="yamlChanged" />
+				<CircuitsModal @changed="yamlChanged" />
+				<EebusModal @changed="yamlChanged" />
 			</div>
 		</div>
 	</div>
@@ -252,36 +288,69 @@ import TopHeader from "../components/TopHeader.vue";
 import "@h2d2/shopicons/es/regular/sun";
 import "@h2d2/shopicons/es/regular/batterythreequarters";
 import "@h2d2/shopicons/es/regular/powersupply";
-import "@h2d2/shopicons/es/regular/money";
 import "@h2d2/shopicons/es/regular/receivepayment";
-import "@h2d2/shopicons/es/regular/eco1";
-import "@h2d2/shopicons/es/regular/fastdelivery1";
-import "@h2d2/shopicons/es/regular/sendit";
-import "@h2d2/shopicons/es/regular/diagram";
-import "@h2d2/shopicons/es/regular/polygon";
 import "@h2d2/shopicons/es/regular/cablecharge";
-import Modal from "bootstrap/js/dist/modal";
+import AddDeviceButton from "../components/Config/AddDeviceButton.vue";
 import api from "../api";
-import VehicleIcon from "../components/VehicleIcon";
-import VehicleModal from "../components/Config/VehicleModal.vue";
+import CircuitsIcon from "../components/MaterialIcon/Circuits.vue";
+import CircuitsModal from "../components/Config/CircuitsModal.vue";
+import ControlModal from "../components/Config/ControlModal.vue";
+import collector from "../mixins/collector";
 import DeviceCard from "../components/Config/DeviceCard.vue";
 import DeviceTags from "../components/Config/DeviceTags.vue";
-import AddDeviceButton from "../components/Config/AddDeviceButton.vue";
-import MeterModal from "../components/Config/MeterModal.vue";
-import GeneralConfig from "../components/Config/GeneralConfig.vue";
+import EebusIcon from "../components/MaterialIcon/Eebus.vue";
+import EebusModal from "../components/Config/EebusModal.vue";
 import formatter from "../mixins/formatter";
+import GeneralConfig from "../components/Config/GeneralConfig.vue";
+import HemsIcon from "../components/MaterialIcon/Hems.vue";
+import HemsModal from "../components/Config/HemsModal.vue";
+import InfluxIcon from "../components/MaterialIcon/Influx.vue";
+import InfluxModal from "../components/Config/InfluxModal.vue";
+import MessagingModal from "../components/Config/MessagingModal.vue";
+import MeterModal from "../components/Config/MeterModal.vue";
+import Modal from "bootstrap/js/dist/modal";
+import ModbusProxyIcon from "../components/MaterialIcon/ModbusProxy.vue";
+import ModbusProxyModal from "../components/Config/ModbusProxyModal.vue";
+import MqttIcon from "../components/MaterialIcon/Mqtt.vue";
+import MqttModal from "../components/Config/MqttModal.vue";
+import NetworkModal from "../components/Config/NetworkModal.vue";
+import NotificationIcon from "../components/MaterialIcon/Notification.vue";
+import restart, { performRestart } from "../restart";
+import store from "../store";
+import SponsorModal from "../components/Config/SponsorModal.vue";
+import TariffsModal from "../components/Config/TariffsModal.vue";
+import VehicleIcon from "../components/VehicleIcon";
+import VehicleModal from "../components/Config/VehicleModal.vue";
 
 export default {
 	name: "Config",
 	components: {
-		TopHeader,
-		GeneralConfig,
-		VehicleIcon,
-		VehicleModal,
+		AddDeviceButton,
+		CircuitsIcon,
+		CircuitsModal,
+		ControlModal,
 		DeviceCard,
 		DeviceTags,
-		AddDeviceButton,
+		EebusIcon,
+		EebusModal,
+		GeneralConfig,
+		HemsIcon,
+		HemsModal,
+		InfluxIcon,
+		InfluxModal,
+		MessagingModal,
 		MeterModal,
+		ModbusProxyIcon,
+		ModbusProxyModal,
+		MqttIcon,
+		MqttModal,
+		NetworkModal,
+		NotificationIcon,
+		SponsorModal,
+		TariffsModal,
+		TopHeader,
+		VehicleIcon,
+		VehicleModal,
 	},
 	props: {
 		offline: Boolean,
@@ -289,8 +358,6 @@ export default {
 	},
 	data() {
 		return {
-			dirty: false,
-			restarting: false,
 			vehicles: [],
 			meters: [],
 			selectedVehicleId: undefined,
@@ -299,10 +366,20 @@ export default {
 			site: { grid: "", pv: [], battery: [] },
 			deviceValueTimeout: undefined,
 			deviceValues: {},
+			yamlConfigState: {
+				messaging: false,
+				eebus: false,
+				circuits: false,
+				modbusproxy: false,
+				hems: false,
+			},
 		};
 	},
-	mixins: [formatter],
+	mixins: [formatter, collector],
 	computed: {
+		fatalClass() {
+			return store.state?.fatal?.class;
+		},
 		siteTitle() {
 			return this.site?.title;
 		},
@@ -321,11 +398,43 @@ export default {
 		selectedMeterName() {
 			return this.getMeterById(this.selectedMeterId)?.name;
 		},
+		tariffTags() {
+			const { currency, tariffGrid, tariffFeedIn, tariffCo2 } = store.state;
+			const tags = {};
+			if (currency) {
+				tags.currency = { value: currency };
+			}
+			if (tariffGrid) {
+				tags.gridPrice = { value: tariffGrid, options: { currency } };
+			}
+			if (tariffFeedIn) {
+				tags.feedinPrice = { value: tariffFeedIn * -1, options: { currency } };
+			}
+			if (tariffCo2) {
+				tags.co2 = { value: tariffCo2 };
+			}
+			return tags;
+		},
+		mqttTags() {
+			const { broker, topic } = store.state?.mqtt || {};
+			if (!broker) return { configured: { value: false } };
+			return {
+				broker: { value: broker },
+				topic: { value: topic },
+			};
+		},
+		influxTags() {
+			const { url, database, org } = store.state?.influx || {};
+			if (!url) return { configured: { value: false } };
+			const result = { url: { value: url } };
+			if (database) result.bucket = { value: database };
+			if (org) result.org = { value: org };
+			return result;
+		},
 	},
 	watch: {
 		offline() {
 			if (!this.offline) {
-				this.restarting = false;
 				this.loadAll();
 			}
 		},
@@ -343,13 +452,12 @@ export default {
 			await this.loadSite();
 			await this.loadDirty();
 			await this.updateValues();
+			await this.updateYamlConfigState();
 		},
 		async loadDirty() {
-			try {
-				const response = await api.get("/config/dirty");
-				this.dirty = response.data?.result;
-			} catch (e) {
-				console.error(e);
+			const response = await api.get("/config/dirty");
+			if (response.data?.result) {
+				restart.restartNeeded = true;
 			}
 		},
 		async loadVehicles() {
@@ -361,8 +469,12 @@ export default {
 			this.meters = response.data?.result || [];
 		},
 		async loadSite() {
-			const response = await api.get("/config/site");
-			this.site = response.data?.result;
+			const response = await api.get("/config/site", {
+				validateStatus: (status) => status < 500,
+			});
+			if (response.status === 200) {
+				this.site = response.data?.result;
+			}
 		},
 		getMetersByNames(names) {
 			if (!names || !this.meters) {
@@ -417,6 +529,10 @@ export default {
 		siteChanged() {
 			this.loadDirty();
 		},
+		yamlChanged() {
+			this.loadDirty();
+			this.updateYamlConfigState();
+		},
 		addMeterToSite(type, name) {
 			if (type === "grid") {
 				this.site.grid = name;
@@ -447,12 +563,7 @@ export default {
 			alert("not implemented yet");
 		},
 		async restart() {
-			try {
-				await api.post("/system/shutdown");
-				this.restarting = true;
-			} catch (e) {
-				alert("Unabled to restart server.");
-			}
+			await performRestart();
 		},
 		async updateDeviceValue(type, name) {
 			try {
@@ -489,6 +600,20 @@ export default {
 				console.error(`modal ${id} not found`);
 			}
 		},
+		updateYamlConfigState() {
+			const keys = Object.keys(this.yamlConfigState);
+			keys.forEach(async (key) => {
+				const res = await api.get(`/config/${key}`);
+				this.yamlConfigState[key] = !!res.data.result;
+			});
+		},
+		yamlTags(key) {
+			return { configured: { value: this.yamlConfigState[key] } };
+		},
+		deviceError(type, name) {
+			const fatal = store.state?.fatal || {};
+			return fatal.class === type && fatal.device === name;
+		},
 	},
 };
 </script>
@@ -496,7 +621,7 @@ export default {
 .config-list {
 	display: grid;
 	grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
-	grid-gap: 1rem;
+	grid-gap: 2rem;
 	margin-bottom: 5rem;
 }
 .wip {
diff --git a/assets/js/views/StartupError.vue b/assets/js/views/StartupError.vue
deleted file mode 100644
index ae727155e..000000000
--- a/assets/js/views/StartupError.vue
+++ /dev/null
@@ -1,154 +0,0 @@
-<template>
-	<div class="container px-4 safe-area-inset">
-		<div class="d-flex justify-content-between align-items-center my-3 my-md-4">
-			<h1 class="d-block mt-0 d-flex">
-				{{ $t("startupError.title") }}
-				<shopicon-regular-car1 size="m" class="ms-2 icon"></shopicon-regular-car1>
-			</h1>
-		</div>
-		<div class="row mb-4">
-			<code class="fs-6 mb-3">
-				<div v-for="(error, index) in errors" :key="index">{{ error }}</div>
-			</code>
-			<i18n-t tag="p" keypath="startupError.description">
-				<a href="https://github.com/evcc-io/evcc/discussions">
-					{{ $t("startupError.discussions") }}
-				</a>
-			</i18n-t>
-			<p>
-				<em>{{ $t("startupError.hint") }}</em>
-			</p>
-		</div>
-		<div class="row mb-4">
-			<h5 class="mb-3">{{ $t("startupError.configuration") }}</h5>
-			<div class="d-md-flex justify-content-between">
-				<p class="me-md-4">
-					<span class="d-block">
-						{{ $t("startupError.configFile") }}
-						<code>{{ file }}</code>
-					</span>
-					<i18n-t v-if="line" tag="span" keypath="startupError.lineError">
-						<a :href="`#line${line}`" @click.prevent="scrollTo">{{
-							$t("startupError.lineErrorLink", [line])
-						}}</a>
-					</i18n-t>
-					{{ $t("startupError.fixAndRestart") }}
-				</p>
-				<p>
-					<button
-						class="btn btn-primary text-nowrap"
-						type="button"
-						:disabled="offline"
-						@click="shutdown"
-					>
-						<span
-							v-if="offline"
-							class="spinner-border spinner-border-sm"
-							role="status"
-							aria-hidden="true"
-						></span>
-
-						{{ $t("startupError.restartButton") }}
-					</button>
-				</p>
-			</div>
-
-			<code v-if="config">
-				<div class="my-2"></div>
-				<div class="py-2 text-muted config">
-					<div
-						v-for="(configLine, lineNumber) in config.split('\n')"
-						:id="`line${lineNumber + 1}`"
-						:key="lineNumber"
-						class="m-0 px-2"
-						:class="{
-							highlighted: line === lineNumber + 1,
-						}"
-					>
-						{{ configLine }}&nbsp;
-					</div>
-				</div>
-			</code>
-		</div>
-	</div>
-</template>
-
-<script>
-import "@h2d2/shopicons/es/regular/car1";
-import api from "../api";
-import collector from "../mixins/collector";
-import store from "../store";
-
-export default {
-	name: "StartupError",
-	mixins: [collector],
-	props: {
-		offline: Boolean,
-	},
-	computed: {
-		errors() {
-			return store.state.fatal || [];
-		},
-		config() {
-			return store.state.config;
-		},
-		file() {
-			return store.state.file;
-		},
-		line() {
-			return store.state.line;
-		},
-	},
-	methods: {
-		shutdown() {
-			api.post("/system/shutdown");
-		},
-		scrollTo(e) {
-			const id = e.currentTarget.getAttribute("href").substring(1);
-			const el = document.getElementById(id);
-			if (el) {
-				el.scrollIntoView({ behavior: "smooth", block: "center" });
-			}
-		},
-	},
-};
-</script>
-<style scoped>
-.highlighted {
-	position: relative;
-	color: var(--bs-code-color) !important;
-}
-.highlighted:before {
-	content: "";
-	position: absolute;
-	left: 0;
-	top: 0.2em;
-	border-top: 0.5em solid transparent;
-	border-bottom: 0.5em solid transparent;
-	border-left: 0.5em solid var(--bs-code-color);
-}
-.config {
-	max-width: 100%;
-	overflow-x: scroll;
-	white-space: pre;
-}
-.config {
-	border: 1px solid var(--bs-gray-400);
-}
-.icon {
-	transform-origin: 60% 40%;
-	animation: swinging 3.5s ease-in-out infinite;
-}
-
-@keyframes swinging {
-	0% {
-		transform: translateY(8%) rotate(170deg);
-	}
-	50% {
-		transform: translateY(8%) rotate(185deg);
-	}
-	100% {
-		transform: translateY(8%) rotate(170deg);
-	}
-}
-</style>
diff --git a/charger/eebus/eebus.go b/charger/eebus/eebus.go
index 3f5b249a6..c0170b6f1 100644
--- a/charger/eebus/eebus.go
+++ b/charger/eebus/eebus.go
@@ -14,6 +14,7 @@ import (
 	"strings"
 	"sync"
 
+	"dario.cat/mergo"
 	"github.com/enbility/cemd/cem"
 	"github.com/enbility/cemd/emobility"
 	"github.com/enbility/eebus-go/service"
@@ -28,6 +29,15 @@ const (
 	EEBUSDeviceCode string = "EVCC_HEMS_01" // used as common name in cert generation
 )
 
+type Config struct {
+	URI         string
+	ShipID      string
+	Interfaces  []string
+	Certificate struct {
+		Public, Private []byte
+	}
+}
+
 type EEBusClientCBs struct {
 	onConnect    func(string) // , ship.Conn) error
 	onDisconnect func(string)
@@ -46,25 +56,17 @@ type EEBus struct {
 
 var Instance *EEBus
 
-func NewServer(other map[string]interface{}) (*EEBus, error) {
-	cc := struct {
-		Uri         string
-		ShipID      string
-		Interfaces  []string
-		Certificate struct {
-			Public, Private []byte
-		}
-	}{
-		Uri: ":4712",
+func NewServer(other Config) (*EEBus, error) {
+	cc := Config{
+		URI: ":4712",
 	}
 
-	if err := util.DecodeOther(other, &cc); err != nil {
+	if err := mergo.Merge(&cc, other, mergo.WithOverride); err != nil {
 		return nil, err
 	}
 
 	log := util.NewLogger("eebus")
 
-	var err error
 	protectedID, err := machine.ProtectedID("evcc-eebus")
 	if err != nil {
 		return nil, err
@@ -80,7 +82,7 @@ func NewServer(other map[string]interface{}) (*EEBus, error) {
 		return nil, err
 	}
 
-	_, portValue, err := net.SplitHostPort(cc.Uri)
+	_, portValue, err := net.SplitHostPort(cc.URI)
 	if err != nil {
 		return nil, err
 	}
diff --git a/cmd/charger.go b/cmd/charger.go
index 6ba7cf891..06f3cba49 100644
--- a/cmd/charger.go
+++ b/cmd/charger.go
@@ -36,7 +36,7 @@ func runCharger(cmd *cobra.Command, args []string) {
 	}
 
 	// setup environment
-	if err := configureEnvironment(cmd, conf); err != nil {
+	if err := configureEnvironment(cmd, &conf); err != nil {
 		log.FATAL.Fatal(err)
 	}
 
diff --git a/cmd/charger_ramp.go b/cmd/charger_ramp.go
index 70f52c9f2..4bcef1d6e 100644
--- a/cmd/charger_ramp.go
+++ b/cmd/charger_ramp.go
@@ -71,7 +71,7 @@ func runChargerRamp(cmd *cobra.Command, args []string) {
 	}
 
 	// setup environment
-	if err := configureEnvironment(cmd, conf); err != nil {
+	if err := configureEnvironment(cmd, &conf); err != nil {
 		log.FATAL.Fatal(err)
 	}
 
diff --git a/cmd/class_enumer.go b/cmd/class_enumer.go
new file mode 100644
index 000000000..91dc339b5
--- /dev/null
+++ b/cmd/class_enumer.go
@@ -0,0 +1,147 @@
+// Code generated by "enumer -type Class -trimprefix Class -transform=lower -text"; DO NOT EDIT.
+
+package cmd
+
+import (
+	"fmt"
+	"strings"
+)
+
+const _ClassName = "meterchargervehicletariffcircuitsitemqttdatabasemodbusproxyeebusjavascriptgohemsinfluxmessengersponsorship"
+
+var _ClassIndex = [...]uint8{0, 5, 12, 19, 25, 32, 36, 40, 48, 59, 64, 74, 76, 80, 86, 95, 106}
+
+const _ClassLowerName = "meterchargervehicletariffcircuitsitemqttdatabasemodbusproxyeebusjavascriptgohemsinfluxmessengersponsorship"
+
+func (i Class) String() string {
+	i -= 1
+	if i < 0 || i >= Class(len(_ClassIndex)-1) {
+		return fmt.Sprintf("Class(%d)", i+1)
+	}
+	return _ClassName[_ClassIndex[i]:_ClassIndex[i+1]]
+}
+
+// An "invalid array index" compiler error signifies that the constant values have changed.
+// Re-run the stringer command to generate them again.
+func _ClassNoOp() {
+	var x [1]struct{}
+	_ = x[ClassMeter-(1)]
+	_ = x[ClassCharger-(2)]
+	_ = x[ClassVehicle-(3)]
+	_ = x[ClassTariff-(4)]
+	_ = x[ClassCircuit-(5)]
+	_ = x[ClassSite-(6)]
+	_ = x[ClassMqtt-(7)]
+	_ = x[ClassDatabase-(8)]
+	_ = x[ClassModbusProxy-(9)]
+	_ = x[ClassEEBus-(10)]
+	_ = x[ClassJavascript-(11)]
+	_ = x[ClassGo-(12)]
+	_ = x[ClassHEMS-(13)]
+	_ = x[ClassInflux-(14)]
+	_ = x[ClassMessenger-(15)]
+	_ = x[ClassSponsorship-(16)]
+}
+
+var _ClassValues = []Class{ClassMeter, ClassCharger, ClassVehicle, ClassTariff, ClassCircuit, ClassSite, ClassMqtt, ClassDatabase, ClassModbusProxy, ClassEEBus, ClassJavascript, ClassGo, ClassHEMS, ClassInflux, ClassMessenger, ClassSponsorship}
+
+var _ClassNameToValueMap = map[string]Class{
+	_ClassName[0:5]:         ClassMeter,
+	_ClassLowerName[0:5]:    ClassMeter,
+	_ClassName[5:12]:        ClassCharger,
+	_ClassLowerName[5:12]:   ClassCharger,
+	_ClassName[12:19]:       ClassVehicle,
+	_ClassLowerName[12:19]:  ClassVehicle,
+	_ClassName[19:25]:       ClassTariff,
+	_ClassLowerName[19:25]:  ClassTariff,
+	_ClassName[25:32]:       ClassCircuit,
+	_ClassLowerName[25:32]:  ClassCircuit,
+	_ClassName[32:36]:       ClassSite,
+	_ClassLowerName[32:36]:  ClassSite,
+	_ClassName[36:40]:       ClassMqtt,
+	_ClassLowerName[36:40]:  ClassMqtt,
+	_ClassName[40:48]:       ClassDatabase,
+	_ClassLowerName[40:48]:  ClassDatabase,
+	_ClassName[48:59]:       ClassModbusProxy,
+	_ClassLowerName[48:59]:  ClassModbusProxy,
+	_ClassName[59:64]:       ClassEEBus,
+	_ClassLowerName[59:64]:  ClassEEBus,
+	_ClassName[64:74]:       ClassJavascript,
+	_ClassLowerName[64:74]:  ClassJavascript,
+	_ClassName[74:76]:       ClassGo,
+	_ClassLowerName[74:76]:  ClassGo,
+	_ClassName[76:80]:       ClassHEMS,
+	_ClassLowerName[76:80]:  ClassHEMS,
+	_ClassName[80:86]:       ClassInflux,
+	_ClassLowerName[80:86]:  ClassInflux,
+	_ClassName[86:95]:       ClassMessenger,
+	_ClassLowerName[86:95]:  ClassMessenger,
+	_ClassName[95:106]:      ClassSponsorship,
+	_ClassLowerName[95:106]: ClassSponsorship,
+}
+
+var _ClassNames = []string{
+	_ClassName[0:5],
+	_ClassName[5:12],
+	_ClassName[12:19],
+	_ClassName[19:25],
+	_ClassName[25:32],
+	_ClassName[32:36],
+	_ClassName[36:40],
+	_ClassName[40:48],
+	_ClassName[48:59],
+	_ClassName[59:64],
+	_ClassName[64:74],
+	_ClassName[74:76],
+	_ClassName[76:80],
+	_ClassName[80:86],
+	_ClassName[86:95],
+	_ClassName[95:106],
+}
+
+// ClassString retrieves an enum value from the enum constants string name.
+// Throws an error if the param is not part of the enum.
+func ClassString(s string) (Class, error) {
+	if val, ok := _ClassNameToValueMap[s]; ok {
+		return val, nil
+	}
+
+	if val, ok := _ClassNameToValueMap[strings.ToLower(s)]; ok {
+		return val, nil
+	}
+	return 0, fmt.Errorf("%s does not belong to Class values", s)
+}
+
+// ClassValues returns all values of the enum
+func ClassValues() []Class {
+	return _ClassValues
+}
+
+// ClassStrings returns a slice of all String values of the enum
+func ClassStrings() []string {
+	strs := make([]string, len(_ClassNames))
+	copy(strs, _ClassNames)
+	return strs
+}
+
+// IsAClass returns "true" if the value is listed in the enum definition. "false" otherwise
+func (i Class) IsAClass() bool {
+	for _, v := range _ClassValues {
+		if i == v {
+			return true
+		}
+	}
+	return false
+}
+
+// MarshalText implements the encoding.TextMarshaler interface for Class
+func (i Class) MarshalText() ([]byte, error) {
+	return []byte(i.String()), nil
+}
+
+// UnmarshalText implements the encoding.TextUnmarshaler interface for Class
+func (i *Class) UnmarshalText(text []byte) error {
+	var err error
+	*i, err = ClassString(string(text))
+	return err
+}
diff --git a/cmd/configure/eebus.go b/cmd/configure/eebus.go
index 0552a018a..0ae1e9b9f 100644
--- a/cmd/configure/eebus.go
+++ b/cmd/configure/eebus.go
@@ -5,12 +5,22 @@ import (
 
 	"github.com/evcc-io/evcc/charger/eebus"
 	"github.com/evcc-io/evcc/cmd/shutdown"
+	"github.com/evcc-io/evcc/util"
 )
 
 // configureEEBus setup EEBus
-func (c *CmdConfigure) configureEEBus(conf map[string]interface{}) error {
-	var err error
-	if eebus.Instance, err = eebus.NewServer(conf); err == nil {
+func (c *CmdConfigure) configureEEBus(other map[string]interface{}) error {
+	conf := eebus.Config{
+		URI: ":4712",
+	}
+
+	if err := util.DecodeOther(other, &conf); err != nil {
+		return err
+	}
+
+	srv, err := eebus.NewServer(conf)
+	if err == nil {
+		eebus.Instance = srv
 		go eebus.Instance.Run()
 		shutdown.Register(eebus.Instance.Shutdown)
 	}
diff --git a/cmd/demo.go b/cmd/demo.go
index fd2a09eea..a7260995b 100644
--- a/cmd/demo.go
+++ b/cmd/demo.go
@@ -4,12 +4,14 @@ import (
 	_ "embed" // for yaml
 	"fmt"
 	"strings"
+
+	"github.com/evcc-io/evcc/api/globalconfig"
 )
 
 //go:embed demo.yaml
 var demoYaml string
 
-func demoConfig(conf *globalConfig) error {
+func demoConfig(conf *globalconfig.All) error {
 	viper.SetConfigType("yaml")
 	if err := viper.ReadConfig(strings.NewReader(demoYaml)); err != nil {
 		return fmt.Errorf("failed decoding demo config: %w", err)
diff --git a/cmd/device.go b/cmd/device.go
index 1ece39b7d..069664037 100644
--- a/cmd/device.go
+++ b/cmd/device.go
@@ -29,7 +29,7 @@ func runDevice(cmd *cobra.Command, args []string) {
 	}
 
 	// setup environment
-	if err := configureEnvironment(cmd, conf); err != nil {
+	if err := configureEnvironment(cmd, &conf); err != nil {
 		log.FATAL.Fatal(err)
 	}
 
diff --git a/cmd/dump.go b/cmd/dump.go
index 1c8253c53..eedb1b764 100644
--- a/cmd/dump.go
+++ b/cmd/dump.go
@@ -49,12 +49,12 @@ func runDump(cmd *cobra.Command, args []string) {
 
 	// setup environment
 	if err == nil {
-		err = configureEnvironment(cmd, conf)
+		err = configureEnvironment(cmd, &conf)
 	}
 
 	var site *core.Site
 	if err == nil {
-		site, err = configureSiteAndLoadpoints(conf)
+		site, err = configureSiteAndLoadpoints(&conf)
 	}
 
 	if *dumpConfig {
diff --git a/cmd/error.go b/cmd/error.go
new file mode 100644
index 000000000..d2e175744
--- /dev/null
+++ b/cmd/error.go
@@ -0,0 +1,78 @@
+package cmd
+
+import (
+	"encoding/json"
+	"errors"
+)
+
+type Class int
+
+//go:generate enumer -type Class -trimprefix Class -transform=lower -text
+const (
+	_ Class = iota
+	ClassMeter
+	ClassCharger
+	ClassVehicle
+	ClassTariff
+	ClassCircuit
+	ClassSite
+	ClassMqtt
+	ClassDatabase
+	ClassModbusProxy
+	ClassEEBus
+	ClassJavascript
+	ClassGo
+	ClassHEMS
+	ClassInflux
+	ClassMessenger
+	ClassSponsorship
+)
+
+// DeviceError indicates the specific device that failed
+type DeviceError struct {
+	Name string
+	err  error
+}
+
+func (e *DeviceError) Error() string {
+	return e.err.Error()
+}
+
+// ClassError indicates the class of devices that failed
+type ClassError struct {
+	Class Class
+	err   error
+}
+
+func (e *ClassError) Error() string {
+	return e.err.Error()
+}
+
+func (e ClassError) MarshalJSON() ([]byte, error) {
+	res := struct {
+		Class  string `json:"class"`
+		Device string `json:"device,omitempty"`
+		Error  string `json:"error"`
+	}{
+		Class: e.Class.String(),
+		Error: e.err.Error(),
+	}
+
+	var de *DeviceError
+	if errors.As(e.err, &de) {
+		res.Device = de.Name
+	}
+
+	return json.Marshal(res)
+}
+
+func wrapErrorWithClass(class Class, err error) error {
+	if err == nil {
+		return nil
+	}
+
+	return &ClassError{
+		Class: class,
+		err:   err,
+	}
+}
diff --git a/cmd/error_test.go b/cmd/error_test.go
new file mode 100644
index 000000000..e05045db4
--- /dev/null
+++ b/cmd/error_test.go
@@ -0,0 +1,22 @@
+package cmd
+
+import (
+	"errors"
+	"testing"
+
+	"github.com/stretchr/testify/require"
+)
+
+func TestError(t *testing.T) {
+	res := &ClassError{
+		ClassMeter,
+		&DeviceError{
+			"0815",
+			errors.New("foo"),
+		},
+	}
+
+	b, err := res.MarshalJSON()
+	require.NoError(t, err)
+	require.Equal(t, `{"class":"meter","device":"0815","error":"foo"}`, string(b))
+}
diff --git a/cmd/flags.go b/cmd/flags.go
index 0e4763dda..3e977b933 100644
--- a/cmd/flags.go
+++ b/cmd/flags.go
@@ -25,6 +25,9 @@ const (
 	flagCloud            = "cloud"
 	flagCloudDescription = "Use cloud service (requires sponsor token)"
 
+	flagReset            = "reset"
+	flagResetDescription = "Reset migrated settings"
+
 	flagEnable  = "enable"
 	flagDisable = "disable"
 
diff --git a/cmd/helper.go b/cmd/helper.go
index 08b7f0606..a42a46c34 100644
--- a/cmd/helper.go
+++ b/cmd/helper.go
@@ -5,9 +5,7 @@ import (
 	"fmt"
 	"net"
 	"os"
-	"path/filepath"
 	"regexp"
-	"strconv"
 	"strings"
 
 	"github.com/evcc-io/evcc/cmd/shutdown"
@@ -63,31 +61,6 @@ func redact(src string) string {
 		ReplaceAllString(src, "$1: *****")
 }
 
-func publishErrorInfo(valueChan chan<- util.Param, cfgFile string, err error) {
-	if cfgFile != "" {
-		file, pathErr := filepath.Abs(cfgFile)
-		if pathErr != nil {
-			file = cfgFile
-		}
-		valueChan <- util.Param{Key: "file", Val: file}
-
-		if src, fileErr := os.ReadFile(cfgFile); fileErr != nil {
-			log.ERROR.Println("could not open config file:", fileErr)
-		} else {
-			valueChan <- util.Param{Key: "config", Val: redact(string(src))}
-
-			// find line number
-			if match := regexp.MustCompile(`yaml: line (\d+):`).FindStringSubmatch(err.Error()); len(match) == 2 {
-				if line, err := strconv.Atoi(match[1]); err == nil {
-					valueChan <- util.Param{Key: "line", Val: line}
-				}
-			}
-		}
-	}
-
-	valueChan <- util.Param{Key: "fatal", Val: unwrap(err)}
-}
-
 // fatal logs a fatal error and runs shutdown functions before terminating
 func fatal(err error) {
 	log.FATAL.Println(err)
@@ -102,7 +75,7 @@ func shutdownDoneC() <-chan struct{} {
 	return doneC
 }
 
-func wrapErrors(err error) error {
+func wrapError(err error) error {
 	if err != nil {
 		var opErr *net.OpError
 		var pathErr *os.PathError
diff --git a/cmd/meter.go b/cmd/meter.go
index bc789815a..6ccf9bcfa 100644
--- a/cmd/meter.go
+++ b/cmd/meter.go
@@ -30,7 +30,7 @@ func runMeter(cmd *cobra.Command, args []string) {
 	}
 
 	// setup environment
-	if err := configureEnvironment(cmd, conf); err != nil {
+	if err := configureEnvironment(cmd, &conf); err != nil {
 		log.FATAL.Fatal(err)
 	}
 
diff --git a/cmd/migrate.go b/cmd/migrate.go
new file mode 100644
index 000000000..284867427
--- /dev/null
+++ b/cmd/migrate.go
@@ -0,0 +1,116 @@
+package cmd
+
+import (
+	"github.com/evcc-io/evcc/core/keys"
+	"github.com/evcc-io/evcc/server/db/settings"
+	"github.com/spf13/cobra"
+)
+
+// migrateCmd represents the migrate command
+var migrateCmd = &cobra.Command{
+	Use:   "migrate",
+	Short: "Migrate yaml to database (overwrites db settings)",
+	Args:  cobra.ExactArgs(0),
+	Run:   runMigrate,
+}
+
+func init() {
+	rootCmd.AddCommand(migrateCmd)
+	migrateCmd.Flags().BoolP(flagReset, "r", false, flagResetDescription)
+}
+
+func runMigrate(cmd *cobra.Command, args []string) {
+	// load config
+	if err := loadConfigFile(&conf, !cmd.Flag(flagIgnoreDatabase).Changed); err != nil {
+		log.FATAL.Fatal(err)
+	}
+
+	// setup persistence
+	if err := configureDatabase(conf.Database); err != nil {
+		log.FATAL.Fatal(err)
+	}
+
+	reset := cmd.Flags().Lookup(flagReset).Changed
+
+	// TODO remove yaml file
+	if reset {
+		log.WARN.Println("resetting:")
+	} else {
+		log.WARN.Println("migrating:")
+	}
+
+	log.DEBUG.Println("- global settings")
+	if reset {
+		settings.Delete(keys.Interval)
+		settings.Delete(keys.SponsorToken)
+	} else {
+		settings.SetInt(keys.Interval, int64(conf.Interval))
+		settings.SetString(keys.SponsorToken, conf.SponsorToken)
+	}
+
+	log.DEBUG.Println("- network")
+	if reset {
+		settings.Delete(keys.Network)
+	} else {
+		_ = settings.SetJson(keys.Network, conf.Network)
+	}
+
+	log.DEBUG.Println("- mqtt")
+	if reset {
+		settings.Delete(keys.Mqtt)
+	} else {
+		_ = settings.SetJson(keys.Mqtt, conf.Mqtt)
+	}
+
+	log.DEBUG.Println("- influx")
+	if reset {
+		settings.Delete(keys.Influx)
+	} else {
+		_ = settings.SetJson(keys.Influx, conf.Influx)
+	}
+
+	log.DEBUG.Println("- hems")
+	if reset {
+		settings.Delete(keys.Hems)
+	} else if conf.HEMS.Type != "" {
+		_ = settings.SetYaml(keys.Hems, conf.HEMS)
+	}
+
+	log.DEBUG.Println("- eebus")
+	if reset {
+		settings.Delete(keys.EEBus)
+	} else if conf.EEBus.URI != "" {
+		_ = settings.SetYaml(keys.EEBus, conf.EEBus)
+	}
+
+	log.DEBUG.Println("- modbusproxy")
+	if reset {
+		settings.Delete(keys.ModbusProxy)
+	} else if len(conf.ModbusProxy) > 0 {
+		_ = settings.SetYaml(keys.ModbusProxy, conf.ModbusProxy)
+	}
+
+	log.DEBUG.Println("- messaging")
+	if reset {
+		settings.Delete(keys.Messaging)
+	} else if len(conf.Messaging.Services) > 0 {
+		_ = settings.SetYaml(keys.Messaging, conf.Messaging)
+	}
+
+	log.DEBUG.Println("- tariffs")
+	if reset {
+		settings.Delete(keys.Tariffs)
+	} else if conf.Tariffs.Grid.Type != "" || conf.Tariffs.FeedIn.Type != "" || conf.Tariffs.Co2.Type != "" || conf.Tariffs.Planner.Type != "" {
+		_ = settings.SetYaml(keys.Tariffs, conf.Tariffs)
+	}
+
+	log.DEBUG.Println("- circuits")
+	if reset {
+		settings.Delete(keys.Circuits)
+	} else if len(conf.Circuits) > 0 {
+		_ = settings.SetYaml(keys.Circuits, conf.Circuits)
+	}
+
+	// wait for shutdown
+	<-shutdownDoneC()
+}
diff --git a/cmd/password_reset.go b/cmd/password_reset.go
index 9f9b352f4..6a6412518 100644
--- a/cmd/password_reset.go
+++ b/cmd/password_reset.go
@@ -24,7 +24,7 @@ func runPasswordReset(cmd *cobra.Command, args []string) {
 	}
 
 	// setup environment
-	if err := configureEnvironment(cmd, conf); err != nil {
+	if err := configureEnvironment(cmd, &conf); err != nil {
 		log.FATAL.Fatal(err)
 	}
 
diff --git a/cmd/password_set.go b/cmd/password_set.go
index 5775941e0..2f1b2d75a 100644
--- a/cmd/password_set.go
+++ b/cmd/password_set.go
@@ -24,7 +24,7 @@ func runPasswordSet(cmd *cobra.Command, args []string) {
 	}
 
 	// setup environment
-	if err := configureEnvironment(cmd, conf); err != nil {
+	if err := configureEnvironment(cmd, &conf); err != nil {
 		log.FATAL.Fatal(err)
 	}
 
diff --git a/cmd/root.go b/cmd/root.go
index c14783707..a7c17e839 100644
--- a/cmd/root.go
+++ b/cmd/root.go
@@ -13,24 +13,24 @@ import (
 	"time"
 
 	"github.com/evcc-io/evcc/core"
+	"github.com/evcc-io/evcc/core/keys"
 	"github.com/evcc-io/evcc/push"
 	"github.com/evcc-io/evcc/server"
-	"github.com/evcc-io/evcc/server/modbus"
 	"github.com/evcc-io/evcc/server/updater"
 	"github.com/evcc-io/evcc/util"
-	"github.com/evcc-io/evcc/util/auth"
 	"github.com/evcc-io/evcc/util/config"
 	"github.com/evcc-io/evcc/util/pipe"
 	"github.com/evcc-io/evcc/util/sponsor"
 	"github.com/evcc-io/evcc/util/telemetry"
 	_ "github.com/joho/godotenv/autoload"
 	"github.com/prometheus/client_golang/prometheus/promhttp"
+	"github.com/spf13/cast"
 	"github.com/spf13/cobra"
 	vpr "github.com/spf13/viper"
 )
 
 const (
-	rebootDelay = 5 * time.Minute // delayed reboot on error
+	rebootDelay = 15 * time.Minute // delayed reboot on error
 	serviceDB   = "/var/lib/evcc/evcc.db"
 )
 
@@ -122,15 +122,22 @@ func runRoot(cmd *cobra.Command, args []string) {
 		err = cfgErr
 	}
 
-	// network config
-	if viper.GetString("uri") != "" {
-		log.WARN.Println("`uri` is deprecated and will be ignored. Use `network` instead.")
+	// setup environment
+	if err == nil {
+		err = configureEnvironment(cmd, &conf)
 	}
 
-	log.INFO.Printf("starting ui and api at :%d", conf.Network.Port)
+	// configure network
+	if err == nil {
+		err = networkSettings(&conf.Network)
+	}
+
+	log.INFO.Printf("listening at :%d", conf.Network.Port)
 
 	// start broadcasting values
 	tee := new(util.Tee)
+	valueChan := make(chan util.Param, 64)
+	go tee.Run(valueChan)
 
 	// value cache
 	cache := util.NewCache()
@@ -153,18 +160,9 @@ func runRoot(cmd *cobra.Command, args []string) {
 	// publish to UI
 	go socketHub.Run(pipe.NewDropper(ignoreEmpty).Pipe(tee.Attach()), cache)
 
-	// setup values channel
-	valueChan := make(chan util.Param, 64)
-	go tee.Run(valueChan)
-
 	// capture log messages for UI
 	util.CaptureLogs(valueChan)
 
-	// setup environment
-	if err == nil {
-		err = configureEnvironment(cmd, conf)
-	}
-
 	// setup telemetry
 	if err == nil {
 		telemetry.Create(conf.Plant)
@@ -175,30 +173,43 @@ func runRoot(cmd *cobra.Command, args []string) {
 
 	// setup modbus proxy
 	if err == nil {
-		for _, cfg := range conf.ModbusProxy {
-			var mode modbus.ReadOnlyMode
-			mode, err = modbus.ReadOnlyModeString(cfg.ReadOnly)
-			if err != nil {
-				break
-			}
-
-			if err = modbus.StartProxy(cfg.Port, cfg.Settings, mode); err != nil {
-				break
-			}
-		}
+		err = wrapErrorWithClass(ClassModbusProxy, configureModbusProxy(conf.ModbusProxy))
 	}
 
 	// setup site and loadpoints
 	var site *core.Site
 	if err == nil {
-		site, err = configureSiteAndLoadpoints(conf)
+		site, err = configureSiteAndLoadpoints(&conf)
 	}
 
-	// setup database
-	if err == nil && conf.Influx.URL != "" {
-		configureInflux(conf.Influx, site, pipe.NewDropper(append(ignoreLogs, ignoreEmpty)...).Pipe(tee.Attach()))
+	// setup influx
+	if err == nil {
+		influx, ierr := configureInflux(&conf.Influx)
+		if ierr != nil {
+			err = wrapErrorWithClass(ClassInflux, ierr)
+		}
+
+		if err == nil && influx != nil {
+			// eliminate duplicate values
+			dedupe := pipe.NewDeduplicator(30*time.Minute,
+				keys.VehicleSoc, keys.VehicleRange, keys.VehicleOdometer,
+				keys.ChargedEnergy, keys.ChargeRemainingEnergy)
+			go influx.Run(site, dedupe.Pipe(
+				pipe.NewDropper(append(ignoreLogs, ignoreEmpty)...).Pipe(tee.Attach()),
+			))
+		}
 	}
 
+	// remove previous fatal startup errors
+	valueChan <- util.Param{Key: keys.Fatal, Val: nil}
+	// publish initial settings
+	valueChan <- util.Param{Key: keys.Interval, Val: conf.Interval}
+	valueChan <- util.Param{Key: keys.Network, Val: conf.Network}
+	valueChan <- util.Param{Key: keys.Mqtt, Val: conf.Mqtt}
+	valueChan <- util.Param{Key: keys.Influx, Val: conf.Influx}
+	// TODO
+	valueChan <- util.Param{Key: keys.Sponsor, Val: sponsor.Status()}
+
 	// setup mqtt publisher
 	if err == nil && conf.Mqtt.Broker != "" {
 		var mqtt *server.MQTT
@@ -214,14 +225,15 @@ func runRoot(cmd *cobra.Command, args []string) {
 	}
 
 	// start HEMS server
-	if err == nil && conf.HEMS.Type != "" {
-		err = configureHEMS(conf.HEMS, site, httpd)
+	if err == nil {
+		err = wrapErrorWithClass(ClassHEMS, configureHEMS(conf.HEMS, site, httpd))
 	}
 
 	// setup messaging
 	var pushChan chan push.Event
 	if err == nil {
 		pushChan, err = configureMessengers(conf.Messaging, site.Vehicles(), valueChan, cache)
+		err = wrapErrorWithClass(ClassMessenger, err)
 	}
 
 	// run shutdown functions on stop
@@ -246,65 +258,43 @@ func runRoot(cmd *cobra.Command, args []string) {
 		case <-time.After(conf.Interval):
 		}
 
-		if err != nil {
-			os.Exit(1)
-		}
-
-		os.Exit(0)
+		// exit code 1 on error
+		os.Exit(cast.ToInt(err != nil))
 	}()
 
-	auth := auth.New()
+	// allow web access for vehicles
+	configureAuth(conf.Network, config.Instances(config.Vehicles().Devices()), httpd.Router(), valueChan)
 
-	// show main ui
+	httpd.RegisterSystemHandler(valueChan, cache, func() {
+		log.INFO.Println("evcc was stopped by user. OS should restart the service. Or restart manually.")
+		once.Do(func() { close(stopC) }) // signal loop to end
+	})
+
+	// show and check version, reduce api load during development
+	if server.Version != server.DevVersion {
+		valueChan <- util.Param{Key: keys.Version, Val: server.FormattedVersion()}
+		go updater.Run(log, httpd, valueChan)
+	}
+
+	// setup site
 	if err == nil {
-		httpd.RegisterSiteHandlers(site, auth, cache)
-		httpd.RegisterAuthHandlers(auth)
-		httpd.RegisterSystemHandler(auth, func() {
-			log.INFO.Println("evcc was stopped by user. OS should restart the service. Or restart manually.")
-			once.Do(func() { close(stopC) }) // signal loop to end
-		})
-
 		// set channels
 		site.DumpConfig()
 		site.Prepare(valueChan, pushChan)
 
-		// show and check version, reduce api load during development
-		if server.Version != server.DevVersion {
-			valueChan <- util.Param{Key: "version", Val: server.FormattedVersion()}
-			go updater.Run(log, httpd, valueChan)
-		}
-
-		// remove previous fatal startup errors
-		valueChan <- util.Param{Key: "fatal", Val: nil}
-
-		// expose sponsor to UI
-		if sponsor.Subject != "" {
-			valueChan <- util.Param{Key: "sponsor", Val: sponsor.Subject}
-			var validDuration time.Duration
-			if d := time.Until(sponsor.ExpiresAt); d > 0 && d < 30*24*time.Hour {
-				validDuration = d
-			}
-			valueChan <- util.Param{Key: "sponsorTokenExpires", Val: validDuration}
-		}
-
-		// allow web access for vehicles
-		configureAuth(conf.Network, config.Instances(config.Vehicles().Devices()), httpd.Router(), valueChan)
+		httpd.RegisterSiteHandlers(site, valueChan)
 
 		go func() {
 			site.Run(stopC, conf.Interval)
 		}()
-	} else {
-		httpd.RegisterAuthHandlers(auth)
-		httpd.RegisterSystemHandler(auth, func() {
-			log.INFO.Println("evcc was stopped by user. OS should restart the service. Or restart manually.")
-			once.Do(func() { close(stopC) }) // signal loop to end
-		})
+	}
 
+	if err != nil {
 		// improve error message
-		err = wrapErrors(err)
-
-		publishErrorInfo(valueChan, cfgFile, err)
+		err = wrapError(err)
+		valueChan <- util.Param{Key: keys.Fatal, Val: err}
 
+		// TODO stop reboot loop if user updates config (or show countdown in UI)
 		log.FATAL.Println(err)
 		log.FATAL.Printf("will attempt restart in: %v", rebootDelay)
 
@@ -317,5 +307,5 @@ func runRoot(cmd *cobra.Command, args []string) {
 	// uds health check listener
 	go server.HealthListener(site)
 
-	log.FATAL.Println(wrapErrors(httpd.ListenAndServe()))
+	log.FATAL.Println(wrapError(httpd.ListenAndServe()))
 }
diff --git a/cmd/settings-get.go b/cmd/settings-get.go
index 59f017473..6f25fa85b 100644
--- a/cmd/settings-get.go
+++ b/cmd/settings-get.go
@@ -28,8 +28,8 @@ func runSettingsGet(cmd *cobra.Command, args []string) {
 		log.FATAL.Fatal(err)
 	}
 
-	// setup environment
-	if err := configureEnvironment(cmd, conf); err != nil {
+	// setup persistence
+	if err := configureDatabase(conf.Database); err != nil {
 		log.FATAL.Fatal(err)
 	}
 
diff --git a/cmd/settings-set.go b/cmd/settings-set.go
index 23d5147ae..ea2d0420d 100644
--- a/cmd/settings-set.go
+++ b/cmd/settings-set.go
@@ -27,8 +27,8 @@ func runSettingsSet(cmd *cobra.Command, args []string) {
 		log.FATAL.Fatal(err)
 	}
 
-	// setup environment
-	if err := configureEnvironment(cmd, conf); err != nil {
+	// setup persistence
+	if err := configureDatabase(conf.Database); err != nil {
 		log.FATAL.Fatal(err)
 	}
 
diff --git a/cmd/setup.go b/cmd/setup.go
index 45ce50198..71e659fab 100644
--- a/cmd/setup.go
+++ b/cmd/setup.go
@@ -5,7 +5,6 @@ import (
 	"context"
 	"errors"
 	"fmt"
-	"net"
 	"net/http"
 	"os"
 	"regexp"
@@ -17,10 +16,12 @@ import (
 
 	paho "github.com/eclipse/paho.mqtt.golang"
 	"github.com/evcc-io/evcc/api"
+	"github.com/evcc-io/evcc/api/globalconfig"
 	"github.com/evcc-io/evcc/charger"
 	"github.com/evcc-io/evcc/charger/eebus"
 	"github.com/evcc-io/evcc/cmd/shutdown"
 	"github.com/evcc-io/evcc/core"
+	"github.com/evcc-io/evcc/core/keys"
 	"github.com/evcc-io/evcc/core/site"
 	"github.com/evcc-io/evcc/hems"
 	"github.com/evcc-io/evcc/meter"
@@ -31,14 +32,13 @@ import (
 	"github.com/evcc-io/evcc/server"
 	"github.com/evcc-io/evcc/server/db"
 	"github.com/evcc-io/evcc/server/db/settings"
+	"github.com/evcc-io/evcc/server/modbus"
 	"github.com/evcc-io/evcc/server/oauth2redirect"
 	"github.com/evcc-io/evcc/tariff"
 	"github.com/evcc-io/evcc/util"
 	"github.com/evcc-io/evcc/util/config"
 	"github.com/evcc-io/evcc/util/locale"
 	"github.com/evcc-io/evcc/util/machine"
-	"github.com/evcc-io/evcc/util/modbus"
-	"github.com/evcc-io/evcc/util/pipe"
 	"github.com/evcc-io/evcc/util/request"
 	"github.com/evcc-io/evcc/util/sponsor"
 	"github.com/evcc-io/evcc/util/templates"
@@ -52,18 +52,18 @@ import (
 	"golang.org/x/text/currency"
 )
 
-var conf = globalConfig{
+var conf = globalconfig.All{
 	Interval: 10 * time.Second,
 	Log:      "info",
-	Network: networkConfig{
+	Network: globalconfig.Network{
 		Schema: "http",
 		Host:   "evcc.local",
 		Port:   7070,
 	},
-	Mqtt: mqttConfig{
+	Mqtt: globalconfig.Mqtt{
 		Topic: "evcc",
 	},
-	Database: dbConfig{
+	Database: globalconfig.DB{
 		Type: "sqlite",
 		Dsn:  "~/.evcc/evcc.db",
 	},
@@ -71,90 +71,6 @@ var conf = globalConfig{
 
 var nameRE = regexp.MustCompile(`^[a-zA-Z0-9_.:-]+$`)
 
-type globalConfig struct {
-	Network      networkConfig
-	Log          string
-	SponsorToken string
-	Plant        string // telemetry plant id
-	Telemetry    bool
-	Metrics      bool
-	Profile      bool
-	Levels       map[string]string
-	Interval     time.Duration
-	Database     dbConfig
-	Mqtt         mqttConfig
-	ModbusProxy  []proxyConfig
-	Javascript   []javascriptConfig
-	Go           []goConfig
-	Influx       server.InfluxConfig
-	EEBus        map[string]interface{}
-	HEMS         config.Typed
-	Messaging    messagingConfig
-	Meters       []config.Named
-	Chargers     []config.Named
-	Vehicles     []config.Named
-	Tariffs      tariffConfig
-	Site         map[string]interface{}
-	Loadpoints   []map[string]interface{}
-	Circuits     []config.Named
-}
-
-type mqttConfig struct {
-	mqtt.Config `mapstructure:",squash"`
-	Topic       string
-}
-
-type javascriptConfig struct {
-	VM     string
-	Script string
-}
-
-type goConfig struct {
-	VM     string
-	Script string
-}
-
-type proxyConfig struct {
-	Port            int
-	ReadOnly        string
-	modbus.Settings `mapstructure:",squash"`
-}
-
-type dbConfig struct {
-	Type string
-	Dsn  string
-}
-
-type messagingConfig struct {
-	Events   map[string]push.EventTemplateConfig
-	Services []config.Typed
-}
-
-type tariffConfig struct {
-	Currency string
-	Grid     config.Typed
-	FeedIn   config.Typed
-	Co2      config.Typed
-	Planner  config.Typed
-}
-
-type networkConfig struct {
-	Schema string
-	Host   string
-	Port   int
-}
-
-func (c networkConfig) HostPort() string {
-	if c.Schema == "http" && c.Port == 80 || c.Schema == "https" && c.Port == 443 {
-		return c.Host
-	}
-	return net.JoinHostPort(c.Host, strconv.Itoa(c.Port))
-}
-
-func (c networkConfig) URI() string {
-	return fmt.Sprintf("%s://%s", c.Schema, c.HostPort())
-}
-
 func nameValid(name string) error {
 	if !nameRE.MatchString(name) {
 		return fmt.Errorf("name must not contain special characters or spaces: %s", name)
@@ -178,7 +94,7 @@ func tokenDanger(conf []config.Named) bool {
 	return false
 }
 
-func loadConfigFile(conf *globalConfig, checkDB bool) error {
+func loadConfigFile(conf *globalconfig.All, checkDB bool) error {
 	err := viper.ReadInConfig()
 
 	if cfgFile = viper.ConfigFileUsed(); cfgFile == "" {
@@ -339,11 +255,11 @@ func configureMeters(static []config.Named, names ...string) error {
 
 		instance, err := meter.NewFromConfig(cc.Type, cc.Other)
 		if err != nil {
-			return fmt.Errorf("cannot create meter '%s': %w", cc.Name, err)
+			return &DeviceError{cc.Name, fmt.Errorf("cannot create meter '%s': %w", cc.Name, err)}
 		}
 
 		if err := config.Meters().Add(config.NewStaticDevice(cc, instance)); err != nil {
-			return err
+			return &DeviceError{cc.Name, err}
 		}
 	}
 
@@ -360,13 +276,15 @@ func configureMeters(static []config.Named, names ...string) error {
 			return nil
 		}
 
+		// TOTO add fake devices
+
 		instance, err := meter.NewFromConfig(cc.Type, cc.Other)
 		if err != nil {
-			return fmt.Errorf("cannot create meter '%s': %w", cc.Name, err)
+			return &DeviceError{cc.Name, fmt.Errorf("cannot create meter '%s': %w", cc.Name, err)}
 		}
 
 		if err := config.Meters().Add(config.NewConfigurableDevice(conf, instance)); err != nil {
-			return err
+			return &DeviceError{cc.Name, err}
 		}
 	}
 
@@ -392,10 +310,14 @@ func configureChargers(static []config.Named, names ...string) error {
 		g.Go(func() error {
 			instance, err := charger.NewFromConfig(cc.Type, cc.Other)
 			if err != nil {
-				return fmt.Errorf("cannot create charger '%s': %w", cc.Name, err)
+				return &DeviceError{cc.Name, fmt.Errorf("cannot create charger '%s': %w", cc.Name, err)}
 			}
 
-			return config.Chargers().Add(config.NewStaticDevice(cc, instance))
+			if err := config.Chargers().Add(config.NewStaticDevice(cc, instance)); err != nil {
+				return &DeviceError{cc.Name, err}
+			}
+
+			return nil
 		})
 	}
 
@@ -413,12 +335,18 @@ func configureChargers(static []config.Named, names ...string) error {
 				return nil
 			}
 
+			// TOTO add fake devices
+
 			instance, err := charger.NewFromConfig(cc.Type, cc.Other)
 			if err != nil {
 				return fmt.Errorf("cannot create charger '%s': %w", cc.Name, err)
 			}
 
-			return config.Chargers().Add(config.NewConfigurableDevice(conf, instance))
+			if err := config.Chargers().Add(config.NewConfigurableDevice(conf, instance)); err != nil {
+				return &DeviceError{cc.Name, err}
+			}
+
+			return nil
 		})
 	}
 
@@ -538,7 +466,19 @@ func configureVehicles(static []config.Named, names ...string) error {
 	return nil
 }
 
-func configureEnvironment(cmd *cobra.Command, conf globalConfig) (err error) {
+func configureSponsorship(token string) (err error) {
+	if settings.Exists(keys.SponsorToken) {
+		if token, err = settings.String(keys.SponsorToken); err != nil {
+			return err
+		}
+	}
+
+	// TODO migrate settings
+
+	return sponsor.ConfigureSponsorship(token)
+}
+
+func configureEnvironment(cmd *cobra.Command, conf *globalconfig.All) (err error) {
 	// full http request log
 	if cmd.Flags().Lookup(flagHeaders).Changed {
 		request.LogHeaders = true
@@ -546,46 +486,49 @@ func configureEnvironment(cmd *cobra.Command, conf globalConfig) (err error) {
 
 	// setup machine id
 	if conf.Plant != "" {
+		// TODO decide wrapping
 		err = machine.CustomID(conf.Plant)
 	}
 
 	// setup sponsorship (allow env override)
 	if err == nil {
-		err = sponsor.ConfigureSponsorship(conf.SponsorToken)
+		err = wrapErrorWithClass(ClassSponsorship, configureSponsorship(conf.SponsorToken))
 	}
 
 	// setup translations
 	if err == nil {
+		// TODO decide wrapping
 		err = locale.Init()
 	}
 
 	// setup persistence
 	if err == nil && conf.Database.Dsn != "" {
-		err = configureDatabase(conf.Database)
+		err = wrapErrorWithClass(ClassDatabase, configureDatabase(conf.Database))
 	}
 
 	// setup mqtt client listener
-	if err == nil && conf.Mqtt.Broker != "" {
-		err = configureMQTT(conf.Mqtt)
+	if err == nil {
+		err = wrapErrorWithClass(ClassMqtt, configureMqtt(&conf.Mqtt))
+	}
+
+	// setup EEBus server
+	if err == nil {
+		err = wrapErrorWithClass(ClassEEBus, configureEEBus(conf.EEBus))
 	}
 
 	// setup javascript VMs
 	if err == nil {
-		err = configureJavascript(conf.Javascript)
+		err = wrapErrorWithClass(ClassJavascript, configureJavascript(conf.Javascript))
 	}
 
 	// setup go VMs
 	if err == nil {
-		err = configureGo(conf.Go)
-	}
-
-	// setup EEBus server
-	if err == nil && conf.EEBus != nil {
-		err = configureEEBus(conf.EEBus)
+		err = wrapErrorWithClass(ClassGo, configureGo(conf.Go))
 	}
 
 	// setup config database
 	if err == nil {
+		// TODO decide wrapping
 		err = config.Init(db.Instance)
 	}
 
@@ -593,7 +536,7 @@ func configureEnvironment(cmd *cobra.Command, conf globalConfig) (err error) {
 }
 
 // configureDatabase configures session database
-func configureDatabase(conf dbConfig) error {
+func configureDatabase(conf globalconfig.DB) error {
 	if err := db.NewInstance(conf.Type, conf.Dsn); err != nil {
 		return err
 	}
@@ -622,7 +565,26 @@ func configureDatabase(conf dbConfig) error {
 }
 
 // configureInflux configures influx database
-func configureInflux(conf server.InfluxConfig, site site.API, in <-chan util.Param) {
+func configureInflux(conf *globalconfig.Influx) (*server.Influx, error) {
+	// read settings
+	if settings.Exists(keys.Influx) {
+		if err := settings.Json(keys.Influx, &conf); err != nil {
+			return nil, err
+		}
+	}
+
+	if conf.URL == "" {
+		return nil, nil
+	}
+
+	// TODO remove yaml file
+	// // migrate settings
+	// if !settings.Exists(keys.Influx) {
+	// 	if err := settings.SetJson(keys.Influx, conf); err != nil {
+	// 		return nil, err
+	// 	}
+	// }
+
 	influx := server.NewInfluxClient(
 		conf.URL,
 		conf.Token,
@@ -632,15 +594,29 @@ func configureInflux(conf server.InfluxConfig, site site.API, in <-chan util.Par
 		conf.Database,
 	)
 
-	// eliminate duplicate values
-	dedupe := pipe.NewDeduplicator(30*time.Minute, "vehicleCapacity", "vehicleSoc", "vehicleRange", "vehicleOdometer", "chargedEnergy", "chargeRemainingEnergy")
-	in = dedupe.Pipe(in)
-
-	go influx.Run(site, in)
+	return influx, nil
 }
 
 // setup mqtt
-func configureMQTT(conf mqttConfig) error {
+func configureMqtt(conf *globalconfig.Mqtt) error {
+	// migrate settings
+	if settings.Exists(keys.Mqtt) {
+		if err := settings.Json(keys.Mqtt, &conf); err != nil {
+			return err
+		}
+
+		// TODO remove yaml file
+		// } else {
+		// 	// migrate settings & write defaults
+		// 	if err := settings.SetJson(keys.Mqtt, conf); err != nil {
+		// 		return err
+		// 	}
+	}
+
+	if conf.Broker == "" {
+		return nil
+	}
+
 	log := util.NewLogger("mqtt")
 
 	instance, err := mqtt.RegisteredClient(log, conf.Broker, conf.User, conf.Password, conf.ClientID, 1, conf.Insecure, func(options *paho.ClientOptions) {
@@ -662,7 +638,7 @@ func configureMQTT(conf mqttConfig) error {
 }
 
 // setup javascript
-func configureJavascript(conf []javascriptConfig) error {
+func configureJavascript(conf []globalconfig.Javascript) error {
 	for _, cc := range conf {
 		if _, err := javascript.RegisteredVM(cc.VM, cc.Script); err != nil {
 			return fmt.Errorf("failed configuring javascript: %w", err)
@@ -672,7 +648,7 @@ func configureJavascript(conf []javascriptConfig) error {
 }
 
 // setup go
-func configureGo(conf []goConfig) error {
+func configureGo(conf []globalconfig.Go) error {
 	for _, cc := range conf {
 		if _, err := golang.RegisteredVM(cc.VM, cc.Script); err != nil {
 			return fmt.Errorf("failed configuring go: %w", err)
@@ -683,6 +659,25 @@ func configureGo(conf []goConfig) error {
 
 // setup HEMS
 func configureHEMS(conf config.Typed, site *core.Site, httpd *server.HTTPd) error {
+	// migrate settings
+	if settings.Exists(keys.Hems) {
+		if err := settings.Yaml(keys.Hems, new(map[string]any), &conf); err != nil {
+			return err
+		}
+	}
+
+	if conf.Type == "" {
+		return nil
+	}
+
+	// TODO remove yaml file
+	// // migrate settings
+	// if !settings.Exists(keys.Hems) {
+	// 	if err := settings.SetYaml(keys.Hems, conf); err != nil {
+	// 		return err
+	// 	}
+	// }
+
 	hems, err := hems.NewFromConfig(conf.Type, conf.Other, site, httpd)
 	if err != nil {
 		return fmt.Errorf("failed configuring hems: %w", err)
@@ -693,8 +688,21 @@ func configureHEMS(conf config.Typed, site *core.Site, httpd *server.HTTPd) erro
 	return nil
 }
 
+// networkSettings reads/migrates network settings
+func networkSettings(conf *globalconfig.Network) error {
+	if settings.Exists(keys.Network) {
+		return settings.Json(keys.Network, &conf)
+	}
+
+	// TODO remove yaml file
+	// // migrate settings
+	// return settings.SetJson(keys.Network, conf)
+
+	return nil
+}
+
 // setup MDNS
-func configureMDNS(conf networkConfig) error {
+func configureMDNS(conf globalconfig.Network) error {
 	host := strings.TrimSuffix(conf.Host, ".local")
 
 	zc, err := zeroconf.RegisterProxy("evcc", "_http._tcp", "local.", conf.Port, host, nil, []string{"path=/"}, nil)
@@ -708,7 +716,26 @@ func configureMDNS(conf networkConfig) error {
 }
 
 // setup EEBus
-func configureEEBus(conf map[string]interface{}) error {
+func configureEEBus(conf eebus.Config) error {
+	// migrate settings
+	if settings.Exists(keys.EEBus) {
+		if err := settings.Yaml(keys.EEBus, new(map[string]any), &conf); err != nil {
+			return err
+		}
+	}
+
+	if conf.URI == "" {
+		return nil
+	}
+
+	// TODO remove yaml file
+	// // migrate settings
+	// if !settings.Exists(keys.EEBus) {
+	// 	if err := settings.SetYaml(keys.EEBus, conf); err != nil {
+	// 		return err
+	// 	}
+	// }
+
 	var err error
 	if eebus.Instance, err = eebus.NewServer(conf); err != nil {
 		return fmt.Errorf("failed configuring eebus: %w", err)
@@ -721,7 +748,20 @@ func configureEEBus(conf map[string]interface{}) error {
 }
 
 // setup messaging
-func configureMessengers(conf messagingConfig, vehicles push.Vehicles, valueChan chan util.Param, cache *util.Cache) (chan push.Event, error) {
+func configureMessengers(conf globalconfig.Messaging, vehicles push.Vehicles, valueChan chan<- util.Param, cache *util.Cache) (chan push.Event, error) {
+	// migrate settings
+	if settings.Exists(keys.Messaging) {
+		if err := settings.Yaml(keys.Messaging, new(map[string]any), &conf); err != nil {
+			return nil, err
+		}
+
+		// TODO remove yaml file
+		// } else if len(conf.Services)+len(conf.Events) > 0 {
+		// 	if err := settings.SetYaml(keys.Messaging, conf); err != nil {
+		// 		return nil, err
+		// 	}
+	}
+
 	messageChan := make(chan push.Event, 1)
 
 	messageHub, err := push.NewHub(conf.Events, vehicles, cache)
@@ -742,23 +782,34 @@ func configureMessengers(conf messagingConfig, vehicles push.Vehicles, valueChan
 	return messageChan, nil
 }
 
-func configureTariff(name string, conf config.Typed, t *api.Tariff, wg *sync.WaitGroup) {
-	defer wg.Done()
-
+func configureTariff(name string, conf config.Typed, t *api.Tariff) error {
 	if conf.Type == "" {
-		return
+		return nil
 	}
 
 	res, err := tariff.NewFromConfig(conf.Type, conf.Other)
 	if err != nil {
-		log.ERROR.Printf("failed configuring %s tariff: %v", name, err)
-		return
+		return &DeviceError{name, err}
 	}
 
 	*t = res
+	return nil
 }
 
-func configureTariffs(conf tariffConfig) (*tariff.Tariffs, error) {
+func configureTariffs(conf globalconfig.Tariffs) (*tariff.Tariffs, error) {
+	// migrate settings
+	if settings.Exists(keys.Tariffs) {
+		if err := settings.Yaml(keys.Tariffs, new(map[string]any), &conf); err != nil {
+			return nil, err
+		}
+
+		// TODO remove yaml file
+		// } else if conf.Grid.Type != "" || conf.FeedIn.Type != "" || conf.Co2.Type != "" || conf.Planner.Type != "" {
+		// 	if err := settings.SetYaml(keys.Tariffs, conf); err != nil {
+		// 		return nil, err
+		// 	}
+	}
+
 	tariffs := tariff.Tariffs{
 		Currency: currency.EUR,
 	}
@@ -767,45 +818,91 @@ func configureTariffs(conf tariffConfig) (*tariff.Tariffs, error) {
 		tariffs.Currency = currency.MustParseISO(conf.Currency)
 	}
 
-	var wg sync.WaitGroup
-	wg.Add(4)
+	g, _ := errgroup.WithContext(context.Background())
+	g.Go(func() error { return configureTariff("grid", conf.Grid, &tariffs.Grid) })
+	g.Go(func() error { return configureTariff("feedin", conf.FeedIn, &tariffs.FeedIn) })
+	g.Go(func() error { return configureTariff("co2", conf.Co2, &tariffs.Co2) })
+	g.Go(func() error { return configureTariff("planner", conf.Planner, &tariffs.Planner) })
 
-	go configureTariff("grid", conf.Grid, &tariffs.Grid, &wg)
-	go configureTariff("feedin", conf.FeedIn, &tariffs.FeedIn, &wg)
-	go configureTariff("co2", conf.Co2, &tariffs.Co2, &wg)
-	go configureTariff("planner", conf.Planner, &tariffs.Planner, &wg)
-
-	wg.Wait()
+	if err := g.Wait(); err != nil {
+		return nil, &ClassError{ClassTariff, err}
+	}
 
 	return &tariffs, nil
 }
 
-func configureDevices(conf globalConfig) error {
+func configureDevices(conf globalconfig.All) error {
+	// TODO: add name/identifier to error for better highlighting in UI
 	if err := configureMeters(conf.Meters); err != nil {
-		return err
+		return &ClassError{ClassMeter, err}
 	}
 	if err := configureChargers(conf.Chargers); err != nil {
-		return err
+		return &ClassError{ClassCharger, err}
+	}
+	if err := configureVehicles(conf.Vehicles); err != nil {
+		return &ClassError{ClassVehicle, err}
 	}
 	if err := configureCircuits(conf.Circuits); err != nil {
-		return err
+		return &ClassError{ClassCircuit, err}
 	}
-	return configureVehicles(conf.Vehicles)
+	return nil
 }
 
-func configureSiteAndLoadpoints(conf globalConfig) (*core.Site, error) {
-	if err := configureDevices(conf); err != nil {
+func configureModbusProxy(conf []globalconfig.ModbusProxy) error {
+	// migrate settings
+	if settings.Exists(keys.ModbusProxy) {
+		if err := settings.Yaml(keys.ModbusProxy, new([]map[string]any), &conf); err != nil {
+			return err
+		}
+
+		// TODO remove yaml file
+		// } else if len(conf) > 0 {
+		// 	if err := settings.SetYaml(keys.ModbusProxy, conf); err != nil {
+		// 		return err
+		// 	}
+	}
+
+	for _, cfg := range conf {
+		var mode modbus.ReadOnlyMode
+		mode, err := modbus.ReadOnlyModeString(cfg.ReadOnly)
+		if err != nil {
+			return err
+		}
+
+		if err = modbus.StartProxy(cfg.Port, cfg.Settings, mode); err != nil {
+			return err
+		}
+	}
+
+	return nil
+}
+
+func configureSiteAndLoadpoints(conf *globalconfig.All) (*core.Site, error) {
+	// migrate settings
+	if settings.Exists(keys.Interval) {
+		d, err := settings.Int(keys.Interval)
+		if err != nil {
+			return nil, err
+		}
+		conf.Interval = time.Duration(d)
+
+		// TODO remove yaml file
+		// } else if conf.Interval != 0 {
+		// settings.SetInt(keys.Interval, int64(conf.Interval))
+	}
+
+	if err := configureDevices(*conf); err != nil {
 		return nil, err
 	}
 
-	loadpoints, err := configureLoadpoints(conf)
+	loadpoints, err := configureLoadpoints(*conf)
 	if err != nil {
 		return nil, fmt.Errorf("failed configuring loadpoints: %w", err)
 	}
 
 	tariffs, err := configureTariffs(conf.Tariffs)
 	if err != nil {
-		return nil, err
+		return nil, &ClassError{ClassTariff, err}
 	}
 
 	site, err := configureSite(conf.Site, loadpoints, tariffs)
@@ -815,7 +912,7 @@ func configureSiteAndLoadpoints(conf globalConfig) (*core.Site, error) {
 
 	if len(config.Circuits().Devices()) > 0 {
 		if err := validateCircuits(site, loadpoints); err != nil {
-			return nil, err
+			return nil, &ClassError{ClassCircuit, err}
 		}
 	}
 
@@ -848,8 +945,13 @@ CONTINUE:
 }
 
 func configureSite(conf map[string]interface{}, loadpoints []*core.Loadpoint, tariffs *tariff.Tariffs) (*core.Site, error) {
-	site, err := core.NewSiteFromConfig(log, conf, loadpoints, tariffs)
+	site, err := core.NewSiteFromConfig(conf)
 	if err != nil {
+		// TODO proper handling
+		panic(err)
+	}
+
+	if err := site.Boot(log, loadpoints, tariffs); err != nil {
 		return nil, fmt.Errorf("failed configuring site: %w", err)
 	}
 
@@ -860,7 +962,7 @@ func configureSite(conf map[string]interface{}, loadpoints []*core.Loadpoint, ta
 	return site, nil
 }
 
-func configureLoadpoints(conf globalConfig) ([]*core.Loadpoint, error) {
+func configureLoadpoints(conf globalconfig.All) ([]*core.Loadpoint, error) {
 	if len(conf.Loadpoints) == 0 {
 		return nil, errors.New("missing loadpoints")
 	}
@@ -883,7 +985,7 @@ func configureLoadpoints(conf globalConfig) ([]*core.Loadpoint, error) {
 }
 
 // configureAuth handles routing for devices. For now only api.AuthProvider related routes
-func configureAuth(conf networkConfig, vehicles []api.Vehicle, router *mux.Router, paramC chan<- util.Param) {
+func configureAuth(conf globalconfig.Network, vehicles []api.Vehicle, router *mux.Router, paramC chan<- util.Param) {
 	auth := router.PathPrefix("/oauth").Subrouter()
 	auth.Use(handlers.CompressHandler)
 	auth.Use(handlers.CORS(
diff --git a/cmd/setup_circuits_test.go b/cmd/setup_circuits_test.go
index 0eb5fdae6..58efe0d1c 100644
--- a/cmd/setup_circuits_test.go
+++ b/cmd/setup_circuits_test.go
@@ -5,6 +5,7 @@ import (
 	"testing"
 
 	"github.com/evcc-io/evcc/api"
+	"github.com/evcc-io/evcc/api/globalconfig"
 	"github.com/evcc-io/evcc/core"
 	"github.com/evcc-io/evcc/meter"
 	"github.com/evcc-io/evcc/server/db"
@@ -35,7 +36,7 @@ func (suite *circuitsTestSuite) SetupTest() {
 }
 
 func (suite *circuitsTestSuite) TestCircuitConf() {
-	var conf globalConfig
+	var conf globalconfig.All
 	viper.SetConfigType("yaml")
 
 	suite.Require().NoError(viper.ReadConfig(strings.NewReader(`circuits:
@@ -67,7 +68,7 @@ loadpoints:
 }
 
 func (suite *circuitsTestSuite) TestLoadpointMissingCircuitError() {
-	var conf globalConfig
+	var conf globalconfig.All
 	viper.SetConfigType("yaml")
 
 	suite.Require().NoError(viper.ReadConfig(strings.NewReader(`
@@ -99,7 +100,7 @@ loadpoints:
 }
 
 func (suite *circuitsTestSuite) TestSiteMissingCircuitError() {
-	var conf globalConfig
+	var conf globalconfig.All
 	viper.SetConfigType("yaml")
 
 	suite.Require().NoError(viper.ReadConfig(strings.NewReader(`
diff --git a/cmd/setup_test.go b/cmd/setup_test.go
index cb5e6f72e..f4dae37f5 100644
--- a/cmd/setup_test.go
+++ b/cmd/setup_test.go
@@ -5,12 +5,13 @@ import (
 	"testing"
 
 	"github.com/evcc-io/evcc/api"
+	"github.com/evcc-io/evcc/api/globalconfig"
 	"github.com/evcc-io/evcc/core"
 	"github.com/evcc-io/evcc/util"
 )
 
 func TestYamlOff(t *testing.T) {
-	var conf globalConfig
+	var conf globalconfig.All
 	viper.SetConfigType("yaml")
 	if err := viper.ReadConfig(strings.NewReader(`loadpoints:
 - mode: off
diff --git a/cmd/tariff.go b/cmd/tariff.go
index 25ed72c16..461762890 100644
--- a/cmd/tariff.go
+++ b/cmd/tariff.go
@@ -29,7 +29,7 @@ func runTariff(cmd *cobra.Command, args []string) {
 	}
 
 	// setup environment
-	if err := configureEnvironment(cmd, conf); err != nil {
+	if err := configureEnvironment(cmd, &conf); err != nil {
 		fatal(err)
 	}
 
diff --git a/cmd/token_tronity.go b/cmd/token_tronity.go
index affadb2a0..6f1f9f840 100644
--- a/cmd/token_tronity.go
+++ b/cmd/token_tronity.go
@@ -10,6 +10,7 @@ import (
 	"time"
 
 	"github.com/evcc-io/evcc/api"
+	"github.com/evcc-io/evcc/api/globalconfig"
 	"github.com/evcc-io/evcc/util"
 	"github.com/evcc-io/evcc/util/config"
 	"github.com/evcc-io/evcc/vehicle"
@@ -100,7 +101,7 @@ func tronityAuthorize(addr string, oc *oauth2.Config) (*oauth2.Token, error) {
 	}
 }
 
-func tronityToken(conf globalConfig, vehicleConf config.Named) (*oauth2.Token, error) {
+func tronityToken(conf globalconfig.All, vehicleConf config.Named) (*oauth2.Token, error) {
 	var cc struct {
 		Credentials vehicle.ClientCredentials
 		RedirectURI string
diff --git a/cmd/vehicle.go b/cmd/vehicle.go
index 8ecbfde07..736ccf92d 100644
--- a/cmd/vehicle.go
+++ b/cmd/vehicle.go
@@ -33,7 +33,7 @@ func runVehicle(cmd *cobra.Command, args []string) {
 	}
 
 	// setup environment
-	if err := configureEnvironment(cmd, conf); err != nil {
+	if err := configureEnvironment(cmd, &conf); err != nil {
 		fatal(err)
 	}
 
diff --git a/core/keys/global.go b/core/keys/global.go
new file mode 100644
index 000000000..0b2d2c627
--- /dev/null
+++ b/core/keys/global.go
@@ -0,0 +1,18 @@
+package keys
+
+const (
+	Interval           = "interval"
+	PasswordConfigured = "passwordConfigured"
+	Sponsor            = "sponsor"
+	SponsorToken       = "sponsorToken"
+	Network            = "network"
+	Mqtt               = "mqtt"
+	Influx             = "influx"
+	EEBus              = "eebus"
+	Hems               = "hems"
+	Messaging          = "messaging"
+	ModbusProxy        = "modbusproxy"
+	Tariffs            = "tariffs"
+	Version            = "version"
+	Fatal              = "fatal"
+)
diff --git a/core/keys/site.go b/core/keys/site.go
index 5c88f9cdf..6602b78e9 100644
--- a/core/keys/site.go
+++ b/core/keys/site.go
@@ -29,8 +29,6 @@ const (
 	TariffPriceLoadpoints = "tariffPriceLoadpoints"
 	Vehicles              = "vehicles"
 	Circuits              = "circuits"
-	PasswordConfigured    = "passwordConfigured"
-	Interval              = "interval"
 
 	// meters
 	GridMeter     = "gridMeter"
@@ -39,10 +37,11 @@ const (
 	AuxMeters     = "auxMeters"
 
 	// battery settings
-	BatteryCapacity         = "batteryCapacity"
-	BatteryDischargeControl = "batteryDischargeControl"
-	BufferSoc               = "bufferSoc"
-	BufferStartSoc          = "bufferStartSoc"
+	BatteryCapacity                   = "batteryCapacity"
+	BatteryDischargeControl           = "batteryDischargeControl"
+	BufferSoc                         = "bufferSoc"
+	BufferStartSoc                    = "bufferStartSoc"
+	MaxGridSupplyWhileBatteryCharging = "maxGridSupplyWhileBatteryCharging"
 
 	// battery status
 	Battery       = "battery"
diff --git a/core/site.go b/core/site.go
index 9ba7ee737..e2db3d76e 100644
--- a/core/site.go
+++ b/core/site.go
@@ -81,10 +81,11 @@ type Site struct {
 	auxMeters     []api.Meter // Auxiliary meters
 
 	// battery settings
-	prioritySoc             float64 // prefer battery up to this Soc
-	bufferSoc               float64 // continue charging on battery above this Soc
-	bufferStartSoc          float64 // start charging on battery above this Soc
-	batteryDischargeControl bool    // prevent battery discharge for fast and planned charging
+	prioritySoc                       float64 // prefer battery up to this Soc
+	bufferSoc                         float64 // continue charging on battery above this Soc
+	bufferStartSoc                    float64 // start charging on battery above this Soc
+	maxGridSupplyWhileBatteryCharging float64 // ignore battery charging if AC consumption is above this value
+	batteryDischargeControl           bool    // prevent battery discharge for fast and planned charging
 
 	loadpoints  []*Loadpoint             // Loadpoints
 	tariffs     *tariff.Tariffs          // Tariffs
@@ -102,7 +103,7 @@ type Site struct {
 	publishCache map[string]any // store last published values to avoid unnecessary republishing
 }
 
-// MetersConfig contains the loadpoint's meter configuration
+// MetersConfig contains the site's meter configuration
 type MetersConfig struct {
 	GridMeterRef     string   `mapstructure:"grid"`    // Grid usage meter
 	PVMetersRef      []string `mapstructure:"pv"`      // PV meter
@@ -111,18 +112,24 @@ type MetersConfig struct {
 }
 
 // NewSiteFromConfig creates a new site
-func NewSiteFromConfig(
-	log *util.Logger,
-	other map[string]interface{},
-	loadpoints []*Loadpoint,
-	tariffs *tariff.Tariffs,
-) (*Site, error) {
+func NewSiteFromConfig(other map[string]interface{}) (*Site, error) {
 	site := NewSite()
+
+	// TODO remove
 	if err := util.DecodeOther(other, site); err != nil {
 		return nil, err
 	}
 
+	// add meters from config
+	site.restoreMetersAndTitle()
+
+	// TODO title
 	Voltage = site.Voltage
+
+	return site, nil
+}
+
+func (site *Site) Boot(log *util.Logger, loadpoints []*Loadpoint, tariffs *tariff.Tariffs) error {
 	site.loadpoints = loadpoints
 	site.tariffs = tariffs
 
@@ -150,11 +157,11 @@ func NewSiteFromConfig(
 		if db.Instance != nil {
 			var err error
 			if lp.db, err = session.NewStore(lp.Title(), db.Instance); err != nil {
-				return nil, err
+				return err
 			}
 			// Fix any dangling history
 			if err := lp.db.ClosePendingSessionsInHistory(lp.chargeMeterTotal()); err != nil {
-				return nil, err
+				return err
 			}
 
 			// NOTE: this requires stopSession to respect async access
@@ -162,14 +169,11 @@ func NewSiteFromConfig(
 		}
 	}
 
-	// add meters from config
-	site.restoreMeters()
-
 	// circuit
 	if site.CircuitRef != "" {
 		dev, err := config.Circuits().ByName(site.CircuitRef)
 		if err != nil {
-			return nil, err
+			return err
 		}
 		site.circuit = dev.Instance()
 	}
@@ -178,7 +182,7 @@ func NewSiteFromConfig(
 	if site.Meters.GridMeterRef != "" {
 		dev, err := config.Meters().ByName(site.Meters.GridMeterRef)
 		if err != nil {
-			return nil, err
+			return err
 		}
 		site.gridMeter = dev.Instance()
 	}
@@ -187,7 +191,7 @@ func NewSiteFromConfig(
 	for _, ref := range site.Meters.PVMetersRef {
 		dev, err := config.Meters().ByName(ref)
 		if err != nil {
-			return nil, err
+			return err
 		}
 		site.pvMeters = append(site.pvMeters, dev.Instance())
 	}
@@ -196,12 +200,12 @@ func NewSiteFromConfig(
 	for _, ref := range site.Meters.BatteryMetersRef {
 		dev, err := config.Meters().ByName(ref)
 		if err != nil {
-			return nil, err
+			return err
 		}
 		site.batteryMeters = append(site.batteryMeters, dev.Instance())
 	}
 
-	if len(site.batteryMeters) > 0 && site.ResidualPower <= 0 {
+	if len(site.batteryMeters) > 0 && site.GetResidualPower() <= 0 {
 		site.log.WARN.Println("battery configured but residualPower is missing or <= 0 (add residualPower: 100 to site), see https://docs.evcc.io/en/docs/reference/configuration/site#residualpower")
 	}
 
@@ -209,14 +213,14 @@ func NewSiteFromConfig(
 	for _, ref := range site.Meters.AuxMetersRef {
 		dev, err := config.Meters().ByName(ref)
 		if err != nil {
-			return nil, err
+			return err
 		}
 		site.auxMeters = append(site.auxMeters, dev.Instance())
 	}
 
 	// configure meter from references
 	if site.gridMeter == nil && len(site.pvMeters) == 0 {
-		return nil, errors.New("missing either grid or pv meter")
+		return errors.New("missing either grid or pv meter")
 	}
 
 	// revert battery mode on shutdown
@@ -228,7 +232,7 @@ func NewSiteFromConfig(
 		}
 	})
 
-	return site, nil
+	return nil
 }
 
 // NewSite creates a Site with sane defaults
@@ -242,11 +246,14 @@ func NewSite() *Site {
 	return lp
 }
 
-// restoreMeters restores site meter configuration
-func (site *Site) restoreMeters() {
+// restoreMetersAndTitle restores site meter configuration
+func (site *Site) restoreMetersAndTitle() {
 	if testing.Testing() {
 		return
 	}
+	if v, err := settings.String(keys.Title); err == nil {
+		site.Title = v
+	}
 	if v, err := settings.String(keys.GridMeter); err == nil && v != "" {
 		site.Meters.GridMeterRef = v
 	}
@@ -266,9 +273,6 @@ func (site *Site) restoreSettings() error {
 	if testing.Testing() {
 		return nil
 	}
-	if v, err := settings.String(keys.Title); err == nil {
-		site.Title = v
-	}
 	if v, err := settings.Float(keys.BufferSoc); err == nil {
 		if err := site.SetBufferSoc(v); err != nil {
 			return err
@@ -279,6 +283,12 @@ func (site *Site) restoreSettings() error {
 			return err
 		}
 	}
+	// TODO migrate from YAML
+	if v, err := settings.Float(keys.MaxGridSupplyWhileBatteryCharging); err == nil {
+		if err := site.SetMaxGridSupplyWhileBatteryCharging(v); err != nil {
+			return err
+		}
+	}
 	if v, err := settings.Float(keys.PrioritySoc); err == nil {
 		if err := site.SetPrioritySoc(v); err != nil {
 			return err
@@ -289,6 +299,11 @@ func (site *Site) restoreSettings() error {
 			return err
 		}
 	}
+	if v, err := settings.Float(keys.ResidualPower); err == nil {
+		if err := site.SetResidualPower(v); err != nil {
+			return err
+		}
+	}
 	return nil
 }
 
@@ -394,10 +409,6 @@ func (site *Site) publish(key string, val interface{}) {
 		return
 	}
 
-	if s, ok := val.(fmt.Stringer); ok {
-		val = s.String()
-	}
-
 	site.uiChan <- util.Param{Key: key, Val: val}
 }
 
@@ -625,7 +636,7 @@ func (site *Site) sitePower(totalChargePower, flexiblePower float64) (float64, b
 
 	// allow using grid and charge as estimate for pv power
 	if site.pvMeters == nil {
-		site.pvPower = totalChargePower - site.gridPower + site.ResidualPower
+		site.pvPower = totalChargePower - site.gridPower + site.GetResidualPower()
 		if site.pvPower < 0 {
 			site.pvPower = 0
 		}
@@ -654,7 +665,7 @@ func (site *Site) sitePower(totalChargePower, flexiblePower float64) (float64, b
 		}
 	}
 
-	sitePower := sitePower(site.log, site.MaxGridSupplyWhileBatteryCharging, site.gridPower, batteryPower, site.ResidualPower)
+	sitePower := sitePower(site.log, site.GetMaxGridSupplyWhileBatteryCharging(), site.gridPower, batteryPower, site.GetResidualPower())
 
 	// deduct smart loads
 	if len(site.auxMeters) > 0 {
@@ -837,12 +848,13 @@ func (site *Site) prepare() {
 	site.publish(keys.GridConfigured, site.gridMeter != nil)
 	site.publish(keys.Pv, make([]api.Meter, len(site.pvMeters)))
 	site.publish(keys.Battery, make([]api.Meter, len(site.batteryMeters)))
+	site.publish(keys.PrioritySoc, site.prioritySoc)
 	site.publish(keys.BufferSoc, site.bufferSoc)
 	site.publish(keys.BufferStartSoc, site.bufferStartSoc)
-	site.publish(keys.PrioritySoc, site.prioritySoc)
+	site.publish(keys.MaxGridSupplyWhileBatteryCharging, site.maxGridSupplyWhileBatteryCharging)
 	site.publish(keys.BatteryMode, site.batteryMode)
 	site.publish(keys.BatteryDischargeControl, site.batteryDischargeControl)
-	site.publish(keys.ResidualPower, site.ResidualPower)
+	site.publish(keys.ResidualPower, site.GetResidualPower())
 
 	site.publish(keys.Currency, site.tariffs.Currency)
 	if tariff := site.GetTariff(PlannerTariff); tariff != nil {
@@ -921,7 +933,6 @@ func (site *Site) Run(stopC chan struct{}, interval time.Duration) {
 	go site.loopLoadpoints(loadpointChan)
 
 	ticker := time.NewTicker(interval)
-	site.publish(keys.Interval, interval.Seconds())
 	site.update(<-loadpointChan) // start immediately
 
 	for {
diff --git a/core/site/api.go b/core/site/api.go
index 7ea5b476f..13ab7fe8b 100644
--- a/core/site/api.go
+++ b/core/site/api.go
@@ -30,12 +30,14 @@ type API interface {
 	// battery
 	//
 
+	GetPrioritySoc() float64
+	SetPrioritySoc(float64) error
 	GetBufferSoc() float64
 	SetBufferSoc(float64) error
 	GetBufferStartSoc() float64
 	SetBufferStartSoc(float64) error
-	GetPrioritySoc() float64
-	SetPrioritySoc(float64) error
+	GetMaxGridSupplyWhileBatteryCharging() float64
+	SetMaxGridSupplyWhileBatteryCharging(float64) error
 
 	//
 	// power and energy
diff --git a/core/site_api.go b/core/site_api.go
index 7d216998e..fb8eb3e17 100644
--- a/core/site_api.go
+++ b/core/site_api.go
@@ -243,6 +243,31 @@ func (site *Site) SetBufferStartSoc(soc float64) error {
 	return nil
 }
 
+func (site *Site) GetMaxGridSupplyWhileBatteryCharging() float64 {
+	site.RLock()
+	defer site.RUnlock()
+	return site.maxGridSupplyWhileBatteryCharging
+}
+
+func (site *Site) SetMaxGridSupplyWhileBatteryCharging(power float64) error {
+	site.Lock()
+	defer site.Unlock()
+
+	if len(site.batteryMeters) == 0 {
+		return ErrBatteryNotConfigured
+	}
+
+	site.log.DEBUG.Println("set max grid supply while battery charging:", power)
+
+	if site.maxGridSupplyWhileBatteryCharging != power {
+		site.maxGridSupplyWhileBatteryCharging = power
+		settings.SetFloat(keys.MaxGridSupplyWhileBatteryCharging, site.maxGridSupplyWhileBatteryCharging)
+		site.publish(keys.MaxGridSupplyWhileBatteryCharging, site.maxGridSupplyWhileBatteryCharging)
+	}
+
+	return nil
+}
+
 // GetResidualPower returns the ResidualPower
 func (site *Site) GetResidualPower() float64 {
 	site.RLock()
@@ -252,13 +277,14 @@ func (site *Site) GetResidualPower() float64 {
 
 // SetResidualPower sets the ResidualPower
 func (site *Site) SetResidualPower(power float64) error {
+	site.log.DEBUG.Println("set residual power:", power)
+
 	site.Lock()
 	defer site.Unlock()
 
-	site.log.DEBUG.Println("set residual power:", power)
-
 	if site.ResidualPower != power {
 		site.ResidualPower = power
+		settings.SetFloat(keys.ResidualPower, site.ResidualPower)
 		site.publish(keys.ResidualPower, site.ResidualPower)
 	}
 
@@ -312,7 +338,10 @@ func (site *Site) GetBatteryDischargeControl() bool {
 func (site *Site) SetBatteryDischargeControl(val bool) error {
 	site.log.DEBUG.Println("set battery discharge control:", val)
 
-	if site.GetBatteryDischargeControl() != val {
+	site.Lock()
+	defer site.Unlock()
+
+	if site.batteryDischargeControl != val {
 		// reset to normal when disabling
 		if mode := site.GetBatteryMode(); !val && batteryModeModified(mode) {
 			if err := site.applyBatteryMode(api.BatteryNormal); err != nil {
@@ -320,9 +349,6 @@ func (site *Site) SetBatteryDischargeControl(val bool) error {
 			}
 		}
 
-		site.Lock()
-		defer site.Unlock()
-
 		site.batteryDischargeControl = val
 		settings.SetBool(keys.BatteryDischargeControl, val)
 		site.publish(keys.BatteryDischargeControl, val)
diff --git a/docs/encoding.md b/docs/encoding.md
new file mode 100644
index 000000000..0b83b0380
--- /dev/null
+++ b/docs/encoding.md
@@ -0,0 +1,9 @@
+## API encoding
+
+|               | socket               | /api/status                   | mqtt      | push          | influx        | rest |
+| ------------- | -------------------- | ----------------------------- | --------- | ------------- | ------------- | ---- |
+| source        | chan<br>encode.New() | cache.State()<br>encode.New() | chan      | cache.All()   | chan          | -    |
+| time.Time     | rfc3999/nil          | rfc3999/nil                   | rfc3999   | time.Time     | time.Time     | ?    |
+| time.Duration | s                    | s                             | s         | time.Duration | time.Duration | s    |
+| fmt.Stringer  | string               | string                        | string    | string        | string        | ?    |
+| struct{}      | ?                    | recursive                     | recursive | n/a           | ?             | ?    |
diff --git a/go.mod b/go.mod
index a5096fc6c..dd000cd3d 100644
--- a/go.mod
+++ b/go.mod
@@ -194,3 +194,5 @@ require (
 	modernc.org/memory v1.8.0 // indirect
 	modernc.org/sqlite v1.29.9 // indirect
 )
+
+replace gopkg.in/yaml.v3 => github.com/andig/yaml v0.0.0-20240531135838-1ff5761ab467
diff --git a/go.sum b/go.sum
index c89c92335..768524982 100644
--- a/go.sum
+++ b/go.sum
@@ -33,6 +33,8 @@ github.com/andig/gosunspec v0.0.0-20231205122018-1daccfa17912 h1:pphS+WUa9zK0ZH/
 github.com/andig/gosunspec v0.0.0-20231205122018-1daccfa17912/go.mod h1:c6P6szcR+ROkqZruOR4f6qbDKFjZX6OitPpj+yJ/r8k=
 github.com/andig/mbserver v0.0.0-20230310211055-1d29cbb5820e h1:m/NTP3JWpR7M0ljLxiQU4fzR25jjhe1LDtxLMNcoNJQ=
 github.com/andig/mbserver v0.0.0-20230310211055-1d29cbb5820e/go.mod h1:4VtYzTm//oUipwvO3yh0g/udTE7pYJM+U/kyAuFDsgM=
+github.com/andig/yaml v0.0.0-20240531135838-1ff5761ab467 h1:JqIoHxsQSV39xaemvVRu3HOkSf5AbhQ1YEENJa2cL3Q=
+github.com/andig/yaml v0.0.0-20240531135838-1ff5761ab467/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 github.com/andybalholm/cascadia v1.3.2 h1:3Xi6Dw5lHF15JtdcmAHD3i1+T8plmv7BQ/nsViSLyss=
 github.com/andybalholm/cascadia v1.3.2/go.mod h1:7gtRlve5FxPPgIgX36uWBX58OdBsSS6lUvCFb+h7KvU=
 github.com/apache/thrift v0.12.0/go.mod h1:cp2SuWMxlEZw2r+iP2GNCdIi4C1qmUzdZFSVb+bacwQ=
@@ -921,9 +923,6 @@ gopkg.in/yaml.v2 v2.2.8/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.3.0/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.4.0 h1:D8xgwECY7CYvx+Y2n4sBz93Jn9JRvxdiyyo8CTfuKaY=
 gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ=
-gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
-gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
-gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 gorm.io/gorm v1.25.10 h1:dQpO+33KalOA+aFYGlK+EfxcI5MbO7EP2yYygwh9h+s=
 gorm.io/gorm v1.25.10/go.mod h1:hbnx/Oo0ChWMn1BIhpy1oYozzpM15i4YPuHDmfYtwg8=
 honnef.co/go/tools v0.0.0-20180728063816-88497007e858/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
diff --git a/hems/config.go b/hems/config.go
index a5f88b15b..5de65493f 100644
--- a/hems/config.go
+++ b/hems/config.go
@@ -5,7 +5,6 @@ import (
 	"strings"
 
 	"github.com/evcc-io/evcc/core/site"
-	"github.com/evcc-io/evcc/hems/ocpp"
 	"github.com/evcc-io/evcc/hems/semp"
 	"github.com/evcc-io/evcc/server"
 )
@@ -20,8 +19,8 @@ func NewFromConfig(typ string, other map[string]interface{}, site site.API, http
 	switch strings.ToLower(typ) {
 	case "sma", "shm", "semp":
 		return semp.New(other, site, httpd)
-	case "ocpp":
-		return ocpp.New(other, site)
+	// case "ocpp":
+	// 	return ocpp.New(other, site)
 	default:
 		return nil, errors.New("unknown hems: " + typ)
 	}
diff --git a/hems/ocpp/ocpp.go b/hems/ocpp/ocpp.go
deleted file mode 100644
index dc9ce5bf8..000000000
--- a/hems/ocpp/ocpp.go
+++ /dev/null
@@ -1,98 +0,0 @@
-package ocpp
-
-import (
-	"fmt"
-	"math/rand"
-	"strings"
-	"time"
-
-	"github.com/evcc-io/evcc/api"
-	"github.com/evcc-io/evcc/core/site"
-	"github.com/evcc-io/evcc/hems/ocpp/profile"
-	"github.com/evcc-io/evcc/util"
-	"github.com/evcc-io/evcc/util/machine"
-	ocpp16 "github.com/lorenzodonini/ocpp-go/ocpp1.6"
-	ocppcore "github.com/lorenzodonini/ocpp-go/ocpp1.6/core"
-	"github.com/lorenzodonini/ocpp-go/ws"
-)
-
-// OCPP is an OCPP client
-type OCPP struct {
-	log  *util.Logger
-	site site.API
-	cp   ocpp16.ChargePoint
-}
-
-const retryTimeout = 5 * time.Second
-
-// New generates OCPP chargepoint client
-func New(conf map[string]interface{}, site site.API) (*OCPP, error) {
-	var cc struct {
-		URI       string
-		StationID string
-	}
-
-	if err := util.DecodeOther(conf, &cc); err != nil {
-		return nil, err
-	}
-
-	log := util.NewLogger("ocpp")
-
-	if cc.StationID == "" {
-		id, err := machine.ProtectedID("evcc-ocpp")
-		if err == nil {
-			cc.StationID = fmt.Sprintf("evcc-%s", strings.ToLower(id))
-		} else {
-			cc.StationID = fmt.Sprintf("evcc-%d", rand.Int31())
-		}
-		log.DEBUG.Println("station id:", cc.StationID)
-	}
-
-	ws := ws.NewClient()
-	cp := ocpp16.NewChargePoint(cc.StationID, nil, ws)
-
-	s := &OCPP{
-		log:  log,
-		site: site,
-		cp:   cp,
-	}
-
-	err := cp.Start(cc.URI)
-	if err == nil {
-		cp.SetCoreHandler(profile.NewCore(log, profile.GetDefaultConfig()))
-		cp.SetSmartChargingHandler(profile.NewSmartCharging(log))
-
-		go s.errorHandler(ws.Errors())
-		go s.errorHandler(cp.Errors())
-	}
-
-	return s, err
-}
-
-// errorHandler logs error channel
-func (s *OCPP) errorHandler(errC <-chan error) {
-	for err := range errC {
-		s.log.ERROR.Println(err)
-	}
-}
-
-// Run executes the OCPP chargepoint client
-func (s *OCPP) Run() {
-	for {
-		for id, lp := range s.site.Loadpoints() {
-			connector := id + 1
-
-			status := ocppcore.ChargePointStatusAvailable
-			if lp.GetStatus() == api.StatusC {
-				status = ocppcore.ChargePointStatusCharging
-			}
-
-			s.log.DEBUG.Printf("send: lp-%d status: %+v", connector, status)
-			if _, err := s.cp.StatusNotification(connector, ocppcore.NoError, status); err != nil {
-				s.log.ERROR.Printf("lp-%d: %v", connector, err)
-			}
-		}
-
-		time.Sleep(retryTimeout)
-	}
-}
diff --git a/hems/ocpp/profile/configmap.go b/hems/ocpp/profile/configmap.go
deleted file mode 100644
index bd6943f66..000000000
--- a/hems/ocpp/profile/configmap.go
+++ /dev/null
@@ -1,135 +0,0 @@
-package profile
-
-import (
-	"strconv"
-
-	"github.com/lorenzodonini/ocpp-go/ocpp1.6/core"
-	"github.com/lorenzodonini/ocpp-go/ocpp1.6/types"
-)
-
-// modified from https://github.com/lorenzodonini/ocpp-go/tree/master/example/1.6/cp
-
-// configuration options
-const (
-	AuthorizeRemoteTxRequests               string = "AuthorizeRemoteTxRequests"
-	ClockAlignedDataInterval                string = "ClockAlignedDataInterval"
-	ConnectionTimeOut                       string = "ConnectionTimeOut"
-	ConnectorPhaseRotation                  string = "ConnectorPhaseRotation"
-	GetConfigurationMaxKeys                 string = "GetConfigurationMaxKeys"
-	HeartbeatInterval                       string = "HeartbeatInterval"
-	LocalAuthorizeOffline                   string = "LocalAuthorizeOffline"
-	LocalPreAuthorize                       string = "LocalPreAuthorize"
-	MeterValuesAlignedData                  string = "MeterValuesAlignedData"
-	MeterValuesSampledData                  string = "MeterValuesSampledData"
-	MeterValueSampleInterval                string = "MeterValueSampleInterval"
-	NumberOfConnectors                      string = "NumberOfConnectors"
-	ResetRetries                            string = "ResetRetries"
-	StopTransactionOnEVSideDisconnect       string = "StopTransactionOnEVSideDisconnect"
-	StopTransactionOnInvalidID              string = "StopTransactionOnInvalidId"
-	StopTxnAlignedData                      string = "StopTxnAlignedData"
-	StopTxnSampledData                      string = "StopTxnSampledData"
-	SupportedFeatureProfiles                string = "SupportedFeatureProfiles"
-	TransactionMessageAttempts              string = "TransactionMessageAttempts"
-	TransactionMessageRetryInterval         string = "TransactionMessageRetryInterval"
-	UnlockConnectorOnEVSideDisconnect       string = "UnlockConnectorOnEVSideDisconnect"
-	WebSocketPingInterval                   string = "WebSocketPingInterval"
-	LocalAuthListEnabled                    string = "LocalAuthListEnabled"
-	LocalAuthListMaxLength                  string = "LocalAuthListMaxLength"
-	SendLocalListMaxLength                  string = "SendLocalListMaxLength"
-	ChargeProfileMaxStackLevel              string = "ChargeProfileMaxStackLevel"
-	ChargingScheduleAllowedChargingRateUnit string = "ChargingScheduleAllowedChargingRateUnit"
-	ChargingScheduleMaxPeriods              string = "ChargingScheduleMaxPeriods"
-	MaxChargingProfilesInstalled            string = "MaxChargingProfilesInstalled"
-)
-
-// ConfigMap defines the active configuration settings
-type ConfigMap map[string]core.ConfigurationKey
-
-// func (c ConfigMap) updateInt(key string, i int64) {
-// 	configKey, ok := c[key]
-// 	if ok {
-// 		configKey.Value = strconv.FormatInt(i, 10)
-// 	}
-// 	c[key] = configKey
-// }
-
-// func (c ConfigMap) updateBool(key string, b bool) {
-// 	configKey, ok := c[key]
-// 	if ok {
-// 		configKey.Value = strconv.FormatBool(b)
-// 	}
-// 	c[key] = configKey
-// }
-
-// func (c ConfigMap) getInt(key string) (int, bool) {
-// 	configKey, ok := c[key]
-// 	if !ok {
-// 		return 0, ok
-// 	}
-// 	result, err := strconv.ParseInt(configKey.Value, 10, 32)
-// 	if err != nil {
-// 		return 0, false
-// 	}
-// 	return int(result), true
-// }
-
-// func (c ConfigMap) getBool(key string) (bool, bool) {
-// 	configKey, ok := c[key]
-// 	if !ok {
-// 		return false, ok
-// 	}
-// 	result, err := strconv.ParseBool(configKey.Value)
-// 	if err != nil {
-// 		return false, false
-// 	}
-// 	return result, true
-// }
-
-func (c ConfigMap) set(key string, readonly bool, value string) {
-	c[key] = core.ConfigurationKey{
-		Key:      key,
-		Readonly: readonly,
-		Value:    &value,
-	}
-}
-
-func GetDefaultConfig() ConfigMap {
-	intBase := 10
-
-	var cfg ConfigMap = make(map[string]core.ConfigurationKey)
-
-	// readonly
-	cfg.set(SupportedFeatureProfiles, true, core.ProfileName)
-	cfg.set(AuthorizeRemoteTxRequests, true, strconv.FormatBool(false))
-	cfg.set(GetConfigurationMaxKeys, true, strconv.FormatInt(50, intBase))
-	cfg.set(NumberOfConnectors, true, strconv.FormatInt(1, intBase))
-	cfg.set(LocalAuthListMaxLength, true, strconv.FormatInt(100, intBase))
-	cfg.set(SendLocalListMaxLength, true, strconv.FormatInt(20, intBase))
-	cfg.set(ChargeProfileMaxStackLevel, true, strconv.FormatInt(10, intBase))
-	cfg.set(ChargingScheduleAllowedChargingRateUnit, true, "Power")
-	cfg.set(ChargingScheduleMaxPeriods, true, strconv.FormatInt(5, intBase))
-	cfg.set(MaxChargingProfilesInstalled, true, strconv.FormatInt(10, intBase))
-
-	// read/write
-	cfg.set(ClockAlignedDataInterval, false, strconv.FormatInt(0, intBase))
-	cfg.set(ConnectionTimeOut, false, strconv.FormatInt(60, intBase))
-	cfg.set(ConnectorPhaseRotation, false, "Unknown")
-	cfg.set(HeartbeatInterval, false, strconv.FormatInt(86400, intBase))
-	cfg.set(LocalAuthorizeOffline, false, strconv.FormatBool(true))
-	cfg.set(LocalAuthListEnabled, false, strconv.FormatBool(true))
-	cfg.set(LocalPreAuthorize, false, strconv.FormatBool(false))
-	cfg.set(MeterValuesAlignedData, false, string(types.MeasurandEnergyActiveExportRegister))
-	cfg.set(MeterValuesSampledData, false, string(types.MeasurandEnergyActiveExportRegister))
-	cfg.set(MeterValueSampleInterval, false, strconv.FormatInt(5, intBase))
-	cfg.set(ResetRetries, false, strconv.FormatInt(10, intBase))
-	cfg.set(StopTransactionOnEVSideDisconnect, false, strconv.FormatBool(true))
-	cfg.set(StopTransactionOnInvalidID, false, strconv.FormatBool(true))
-	cfg.set(StopTxnAlignedData, false, strconv.FormatBool(true))
-	cfg.set(StopTxnSampledData, false, string(types.MeasurandEnergyActiveExportRegister))
-	cfg.set(TransactionMessageAttempts, false, strconv.FormatInt(5, intBase))
-	cfg.set(TransactionMessageRetryInterval, false, strconv.FormatInt(60, intBase))
-	cfg.set(UnlockConnectorOnEVSideDisconnect, false, strconv.FormatBool(true))
-	cfg.set(WebSocketPingInterval, false, strconv.FormatInt(54, intBase))
-
-	return cfg
-}
diff --git a/hems/ocpp/profile/core.go b/hems/ocpp/profile/core.go
deleted file mode 100644
index 6f1ff5479..000000000
--- a/hems/ocpp/profile/core.go
+++ /dev/null
@@ -1,43 +0,0 @@
-package profile
-
-import (
-	"github.com/evcc-io/evcc/util"
-	"github.com/lorenzodonini/ocpp-go/ocpp1.6/core"
-	"github.com/lorenzodonini/ocpp-go/ocpp1.6/types"
-)
-
-type Core struct {
-	log           *util.Logger
-	configuration ConfigMap
-}
-
-func NewCore(log *util.Logger, config ConfigMap) *Core {
-	return &Core{
-		log:           log,
-		configuration: config,
-	}
-}
-
-// OnChangeAvailability handles the CS message
-func (s *Core) OnChangeAvailability(request *core.ChangeAvailabilityRequest) (confirmation *core.ChangeAvailabilityConfirmation, err error) {
-	s.log.TRACE.Printf("recv: %s %+v", request.GetFeatureName(), request)
-	return core.NewChangeAvailabilityConfirmation(core.AvailabilityStatusRejected), nil
-}
-
-// OnUnlockConnector handles the CS message
-func (s *Core) OnUnlockConnector(request *core.UnlockConnectorRequest) (confirmation *core.UnlockConnectorConfirmation, err error) {
-	s.log.TRACE.Printf("recv: %s %+v", request.GetFeatureName(), request)
-	return core.NewUnlockConnectorConfirmation(core.UnlockStatusUnlocked), nil
-}
-
-// OnRemoteStartTransaction handles the CS message
-func (s *Core) OnRemoteStartTransaction(request *core.RemoteStartTransactionRequest) (confirmation *core.RemoteStartTransactionConfirmation, err error) {
-	s.log.TRACE.Printf("recv: %s %+v", request.GetFeatureName(), request)
-	return core.NewRemoteStartTransactionConfirmation(types.RemoteStartStopStatusRejected), nil
-}
-
-// OnRemoteStopTransaction handles the CS message
-func (s *Core) OnRemoteStopTransaction(request *core.RemoteStopTransactionRequest) (confirmation *core.RemoteStopTransactionConfirmation, err error) {
-	s.log.TRACE.Printf("recv: %s %+v", request.GetFeatureName(), request)
-	return core.NewRemoteStopTransactionConfirmation(types.RemoteStartStopStatusRejected), nil
-}
diff --git a/hems/ocpp/profile/core_configuration.go b/hems/ocpp/profile/core_configuration.go
deleted file mode 100644
index 0b5953276..000000000
--- a/hems/ocpp/profile/core_configuration.go
+++ /dev/null
@@ -1,41 +0,0 @@
-package profile
-
-import (
-	"github.com/lorenzodonini/ocpp-go/ocpp1.6/core"
-	"golang.org/x/exp/maps"
-)
-
-// OnGetConfiguration handles the CS message
-func (s *Core) OnGetConfiguration(request *core.GetConfigurationRequest) (confirmation *core.GetConfigurationConfirmation, err error) {
-	s.log.TRACE.Printf("recv: %s %+v", request.GetFeatureName(), request)
-
-	var resultKeys []core.ConfigurationKey
-	var unknownKeys []string
-
-	for _, key := range request.Key {
-		configKey, ok := s.configuration[key]
-		if !ok {
-			unknownKeys = append(unknownKeys, *configKey.Value)
-		} else {
-			resultKeys = append(resultKeys, configKey)
-		}
-	}
-
-	// return config for all keys
-	if len(request.Key) == 0 {
-		resultKeys = maps.Values(s.configuration)
-	}
-
-	s.log.TRACE.Printf("%s: configuration for requested keys: %v", request.GetFeatureName(), request.Key)
-
-	conf := core.NewGetConfigurationConfirmation(resultKeys)
-	conf.UnknownKey = unknownKeys
-
-	return conf, nil
-}
-
-// OnChangeConfiguration handles the CS message
-func (s *Core) OnChangeConfiguration(request *core.ChangeConfigurationRequest) (confirmation *core.ChangeConfigurationConfirmation, err error) {
-	s.log.TRACE.Printf("recv: %s %+v", request.GetFeatureName(), request)
-	return core.NewChangeConfigurationConfirmation(core.ConfigurationStatusAccepted), nil
-}
diff --git a/hems/ocpp/profile/core_other.go b/hems/ocpp/profile/core_other.go
deleted file mode 100644
index 8b7851a45..000000000
--- a/hems/ocpp/profile/core_other.go
+++ /dev/null
@@ -1,23 +0,0 @@
-package profile
-
-import (
-	"github.com/lorenzodonini/ocpp-go/ocpp1.6/core"
-)
-
-// OnClearCache handles the CS message
-func (s *Core) OnClearCache(request *core.ClearCacheRequest) (confirmation *core.ClearCacheConfirmation, err error) {
-	s.log.TRACE.Printf("recv: %s", request.GetFeatureName())
-	return core.NewClearCacheConfirmation(core.ClearCacheStatusAccepted), nil
-}
-
-// OnDataTransfer handles the CS message
-func (s *Core) OnDataTransfer(request *core.DataTransferRequest) (confirmation *core.DataTransferConfirmation, err error) {
-	s.log.TRACE.Printf("recv: %s %+v", request.GetFeatureName(), request)
-	return core.NewDataTransferConfirmation(core.DataTransferStatusAccepted), nil
-}
-
-// OnReset handles the CS message
-func (s *Core) OnReset(request *core.ResetRequest) (confirmation *core.ResetConfirmation, err error) {
-	s.log.TRACE.Printf("recv: %s %+v", request.GetFeatureName(), request)
-	return core.NewResetConfirmation(core.ResetStatusAccepted), nil
-}
diff --git a/hems/ocpp/profile/smartcharging.go b/hems/ocpp/profile/smartcharging.go
deleted file mode 100644
index ce8d78acc..000000000
--- a/hems/ocpp/profile/smartcharging.go
+++ /dev/null
@@ -1,34 +0,0 @@
-package profile
-
-import (
-	"github.com/evcc-io/evcc/util"
-	sc "github.com/lorenzodonini/ocpp-go/ocpp1.6/smartcharging"
-)
-
-type SmartCharging struct {
-	log *util.Logger
-}
-
-func NewSmartCharging(log *util.Logger) *SmartCharging {
-	return &SmartCharging{
-		log: log,
-	}
-}
-
-// OnSetChargingProfile handles the CS message
-func (s *SmartCharging) OnSetChargingProfile(request *sc.SetChargingProfileRequest) (confirmation *sc.SetChargingProfileConfirmation, err error) {
-	s.log.TRACE.Printf("recv: %s %+v", request.GetFeatureName(), request)
-	return sc.NewSetChargingProfileConfirmation(sc.ChargingProfileStatusRejected), nil
-}
-
-// OnClearChargingProfile handles the CS message
-func (s *SmartCharging) OnClearChargingProfile(request *sc.ClearChargingProfileRequest) (confirmation *sc.ClearChargingProfileConfirmation, err error) {
-	s.log.TRACE.Printf("recv: %s %+v", request.GetFeatureName(), request)
-	return sc.NewClearChargingProfileConfirmation(sc.ClearChargingProfileStatusUnknown), nil
-}
-
-// OnGetCompositeSchedule handles the CS message
-func (s *SmartCharging) OnGetCompositeSchedule(request *sc.GetCompositeScheduleRequest) (confirmation *sc.GetCompositeScheduleConfirmation, err error) {
-	s.log.TRACE.Printf("recv: %s %+v", request.GetFeatureName(), request)
-	return sc.NewGetCompositeScheduleConfirmation(sc.GetCompositeScheduleStatusRejected), nil
-}
diff --git a/i18n/de.toml b/i18n/de.toml
index d7361b7f5..02000f4c7 100644
--- a/i18n/de.toml
+++ b/i18n/de.toml
@@ -26,13 +26,36 @@ never = "nur mit genug PV-Überschuss"
 titleAdd = "Batterie Zähler hinzufügen"
 titleEdit = "Batterie Zähler bearbeiten"
 
+[config.circuits]
+description = "Stellt sicher, dass die Summe aller Ladepunkte, die an einen Stromkreis angeschlossen sind, die konfigurierten Leistungs- und Stromgrenzen nicht überschreitet. Stromkreise können verschachtelt werden, um eine Hierarchie aufzubauen."
+title = "Lastmanagement"
+
+[config.control]
+description = "Normalerweise sind die Standardwerte in Ordnung. Ändere nur etwas, wenn du weißt, was du tust."
+descriptionInterval = "Regelkreis Aktualisierungszyklus in Sekunden. Definiert, wie oft evcc Messdaten liest, die Ladeleistung anpasst und die Benutzeroberfläche aktualisiert. Kurze Intervalle (< 30s) können zu Schwingungen und unerwünschtem Verhalten führen."
+descriptionMaxGridSupply = "Nur relevant für Hybrid-Wechselrichter, die nicht in der Lage sind, die volle DC-Erzeugungsleistung über AC an das Haus auszugeben. Dieses Szenario kann zu unerwünschtem Netzbezug führen, da evcc davon ausgeht, dass die volle DC-Leistung verfügbar ist. Verwende einen Wert von mindestens 50 W, um dies zu verhindern."
+descriptionResidualPower = "Verschiebt den Betriebspunkt des Regelkreises. Wenn du eine Hausbatterie hast, wird empfohlen, einen Wert von 100 W einzustellen. Auf diese Weise erhält die Batterie eine leichte Priorität gegenüber dem Netzbezug."
+labelInterval = "Aktualisierungsintervall"
+labelMaxGridSupply = "Max. Netzbezug während des Ladens"
+labelResidualPower = "Residualleistung"
+title = "Regelverhalten"
+
 [config.deviceValue]
 capacity = "Kapazität"
 chargeStatus = "Status"
+chargeStatusA = "nicht verbunden"
+chargeStatusB = "verbunden"
+chargeStatusC = "lädt"
+chargeStatusE = "keine Leistung"
+chargeStatusF = "Fehler"
 chargedEnergy = "Geladen"
+co2 = "Netz-CO₂"
+currency = "Währung"
 current = "Strom"
 enabled = "Aktiviert"
 energy = "Energie"
+feedinPrice = "Einspeisevergütung"
+gridPrice = "Netzpreis"
 odometer = "Kilometerstand"
 phaseCurrents = "Strom L1..L3"
 phasePowers = "Leistung L1..L3"
@@ -41,6 +64,11 @@ power = "Leistung"
 range = "Reichweite"
 soc = "SoC"
 socLimit = "SoC Begrenzung"
+temp = "Temperatur"
+
+[config.eebus]
+description = "Grundkonfiguration für die Kommunikation mit anderen EEBus-Geräten."
+title = "EEBus"
 
 [config.form]
 example = "Beispiel"
@@ -48,22 +76,54 @@ optional = "optional"
 
 [config.general]
 cancel = "Abbrechen"
+docsLink = "Siehe Dokumentation."
+experimental = "Experimentell"
+off = "aus"
+on = "an"
+password = "Passwort"
+remove = "Entfernen"
 save = "Speichern"
+telemetry = "Telemetrie"
+title = "Titel"
 
 [config.grid]
-titleAdd = "Stromzähler (Netz) hinzufügen"
-titleEdit = "Stromzähler (Netz) bearbeiten"
+title = "Netzzähler"
+titleAdd = "Netzzähler hinzufügen"
+titleEdit = "Netzzähler bearbeiten"
+
+[config.hems]
+description = "Connect evcc to another home energy management system."
+title = "HEMS"
+
+[config.influx]
+description = "Schreibt Ladedaten und andere Metriken in InfluxDB. Verwende Grafana oder andere Tools, um die Daten zu visualisieren."
+descriptionToken = "Siehe die InfluxDB-Dokumentation, um zu erfahren, wie du einen erstellst. https://docs.influxdata.com/influxdb/v2/admin/"
+labelBucket = "Bucket"
+labelDatabase = "Datenbank"
+labelOrg = "Organisation"
+labelPassword = "Passwort"
+labelToken = "API-Token"
+labelUrl = "URL"
+labelUser = "Benutzer"
+title = "InfluxDB"
+v1Support = "Unterstützung für InfluxDB 1.x?"
+v2Support = "Zurück zu InfluxDB 2.x"
 
 [config.main]
 addLoadpoint = "Ladepunkt hinzufügen"
 addPvBattery = "PV oder Speicher hinzufügen"
 addVehicle = "Fahrzeug hinzufügen"
+configured = "konfiguriert"
 edit = "bearbeiten"
 title = "Konfiguration"
 unconfigured = "nicht konfiguriert"
 vehicles = "Meine Fahrzeuge"
 yaml = "Konfiguration in evcc.yaml gefunden. Nicht per UI editierbar"
 
+[config.messaging]
+description = "Erhalte Benachrichtigungen über Ladevorgänge und andere Ereignisse."
+title = "Benachrichtigungen"
+
 [config.meter]
 cancel = "Abbrechen"
 delete = "Löschen"
@@ -72,6 +132,35 @@ template = "Hersteller"
 titleChoice = "Was möchtest du hinzufügen?"
 validateSave = "Überprüfen & speichern"
 
+[config.modbusproxy]
+description = "Erlaubt mehreren Clients den Zugriff auf ein einzelnes Modbus-Gerät."
+title = "Modbus-Proxy"
+
+[config.mqtt]
+authentication = "Authentifizierung"
+brokerLabel = "Server"
+description = "Verbinde evcc mit einem MQTT-Broker, um Daten mit anderen Systemen in deinem Netzwerk auszutauschen."
+descriptionClientId = "Autor der Nachrichten. Wenn leer, wird `evcc-[rand]` verwendet."
+descriptionTopic = "Leer lassen, um das Publizieren zu deaktivieren."
+labelBroker = "Broker"
+labelCheckInsecure = "Erlaube unsichere Verbindungen"
+labelClientId = "Client ID"
+labelInsecure = "Zertifikatüberprüfung"
+labelPassword = "Passwort"
+labelTopic = "Topic"
+labelUser = "Benutzer"
+publishing = "Veröffentlichen"
+title = "MQTT"
+
+[config.network]
+descriptionHost = "Verwende den .local-Suffix, um mDNS zu aktivieren. Wird zur Erkennung der mobilen App und einiger OCPP-Wallboxen benötigt."
+descriptionPort = "Port für die Web-Oberfläche und API. Du musst deine Browser-URL aktualisieren, wenn du dies änderst."
+descriptionSchema = "Beeinflusst nur die URL-Generierung. Die Auswahl von HTTPS aktiviert keine Verschlüsselung."
+labelHost = "Hostname"
+labelPort = "Port"
+labelSchema = "Schema"
+title = "Netzwerk"
+
 [config.options]
 
 [config.options.endianness]
@@ -88,7 +177,21 @@ titleEdit = "Zähler (PV) bearbeiten"
 
 [config.section]
 general = "Allgemein"
+grid = "Netzanschluss"
+integrations = "Integrationen"
+loadpoints = "Ladepunkte"
+meter = "PV & Batterie"
 system = "System"
+vehicles = "Fahrzeuge"
+
+[config.sponsor]
+addToken = "Sponsortoken eingeben"
+changeToken = "Sponsortoken ändern"
+description = "Das Sponsoring-Modell hilft uns, das Projekt zu pflegen und nachhaltig neue und spannende Funktionen zu entwickeln. Als Sponsor erhältst du Zugriff auf alle Wallbox-Implementierungen."
+descriptionToken = "Du erhältst das Token von {url}. Wir bieten auch ein Testtoken für Tests an."
+error = "Das Sponsortoken ist ungültig."
+labelToken = "Sponsortoken"
+title = "Sponsorship"
 
 [config.system]
 logs = "Logs"
@@ -98,6 +201,10 @@ restartRequiredMessage = "Konfiguration geändert."
 restartingDescription = "Bitte warten …"
 restartingMessage = "evcc wird neu gestartet."
 
+[config.tariffs]
+description = "Hinterlege deine Stromtarife, um die Kosten zu berechnen."
+title = "Tarife"
+
 [config.title]
 description = "Wird in der Hauptansicht und im Browser-Tab angezeigt."
 label = "Titel"
@@ -515,7 +622,7 @@ auto = "Automatisch"
 label = "Sprache"
 
 [settings.sponsorToken]
-expires = "Dein Sponsortoken läuft {inXDays} ab. {getNewToken} und aktualisiere deine Konfigurationsdatei."
+expires = "Dein Sponsortoken läuft {inXDays} ab. {getNewToken} und aktualisiere es hier."
 getNew = "Hol dir ein Neues"
 hint = "Hinweis: Wir werden das zukünftig automatisieren."
 
diff --git a/i18n/en.toml b/i18n/en.toml
index 6384c65f7..ad0a78108 100644
--- a/i18n/en.toml
+++ b/i18n/en.toml
@@ -26,14 +26,42 @@ never = "only with enough surplus"
 titleAdd = "Add Battery Meter"
 titleEdit = "Edit Battery Meter"
 
+[config.circuits]
+description = "Ensures, that the sum of all loadpoints connected to a circuit does not exceed the configured power and current limits. Circuits can be nested to build a hierarchy."
+title = "Load Management"
+
+[config.control]
+description = "Usually the default values are fine. Only change them if you know what you are doing."
+descriptionInterval = "Control loop update cycle in seconds. Defines how often evcc reads meter data, adjusts charging power and updates the UI. Short intervals (< 30s) can cause oszillations and unwanted behavior."
+descriptionMaxGridSupply = "Only relevant for hybrid inverters that are not able to output the full DC generation power to the home via AC. This szenario can lead to unwanted grid use, since evcc assumes the full DC power is available. Use a value of at least 50 W to prevent this."
+descriptionResidualPower = "Shifts the operation point of the control loop. If you have a home battery it's recommended to set a value of 100 W. This way the battery will get slight priority over grid use."
+labelInterval = "Update interval"
+labelMaxGridSupply = "Max. grid supply while charging"
+labelResidualPower = "Residual power"
+title = "Control behavior"
+
 [config.deviceValue]
+broker = "Broker"
+bucket = "Bucket"
 capacity = "Capacity"
 chargeStatus = "Status"
+chargeStatusA = "not connected"
+chargeStatusB = "connected"
+chargeStatusC = "charging"
+chargeStatusE = "no power"
+chargeStatusF = "error"
 chargedEnergy = "Charged"
+co2 = "Grid CO₂"
+configured = "Configured"
+currency = "Currency"
 current = "Current"
 enabled = "Enabled"
 energy = "Energy"
+feedinPrice = "Feed-in price"
+gridPrice = "Grid price"
+no = "no"
 odometer = "Odometer"
+org = "Organization"
 phaseCurrents = "Current L1..L3"
 phasePowers = "Power L1..L3"
 phaseVoltages = "Voltage L1..L3"
@@ -41,6 +69,14 @@ power = "Power"
 range = "Range"
 soc = "SoC"
 socLimit = "Limit"
+temp = "Temperature"
+topic = "Topic"
+url = "URL"
+yes = "yes"
+
+[config.eebus]
+description = "Configuration that enables evcc to communicate with other EEBus devices."
+title = "EEBus"
 
 [config.form]
 example = "Example"
@@ -48,22 +84,54 @@ optional = "optional"
 
 [config.general]
 cancel = "Cancel"
+docsLink = "See documentation."
+experimental = "Experimental"
+off = "off"
+on = "on"
+password = "Password"
+remove = "Remove"
 save = "Save"
+telemetry = "Telemetry"
+title = "Title"
 
 [config.grid]
+title = "Grid meter"
 titleAdd = "Add Grid Meter"
 titleEdit = "Edit Grid Meter"
 
+[config.hems]
+description = "Connect evcc to another home energy management system."
+title = "HEMS"
+
+[config.influx]
+description = "Writes charging data and other metrics to InfluxDB. Use Grafana or other tools to visualize the data."
+descriptionToken = "Check the InfluxDB documentation to learn how to create one. https://docs.influxdata.com/influxdb/v2/admin/"
+labelBucket = "Bucket"
+labelDatabase = "Database"
+labelOrg = "Organization"
+labelPassword = "Password"
+labelToken = "API Token"
+labelUrl = "URL"
+labelUser = "Username"
+title = "InfluxDB"
+v1Support = "Need support for InfluxDB 1.x?"
+v2Support = "Back to InfluxDB 2.x"
+
 [config.main]
 addLoadpoint = "Add charge point"
 addPvBattery = "Add solar or battery"
 addVehicle = "Add vehicle"
+configured = "configured"
 edit = "edit"
 title = "Configuration"
 unconfigured = "not configured"
 vehicles = "My Vehicles"
 yaml = "Configured in evcc.yaml. Not editable in the UI."
 
+[config.messaging]
+description = "Recieve messages about your charging sessions."
+title = "Notifications"
+
 [config.meter]
 cancel = "Cancel"
 delete = "Delete"
@@ -72,6 +140,34 @@ template = "Manufacturer"
 titleChoice = "What Do You Want To Add?"
 validateSave = "Validate & save"
 
+[config.modbusproxy]
+description = "Allow multiple clients to access a single Modbus device."
+title = "Modbus Proxy"
+
+[config.mqtt]
+authentication = "Authentication"
+description = "Connect to an MQTT broker to exchange data with other systems on your network."
+descriptionClientId = "Author of the messages. If empty `evcc-[rand]` is used."
+descriptionTopic = "Leave empty to disable publishing."
+labelBroker = "Broker"
+labelCheckInsecure = "Allow self-signed certificates"
+labelClientId = "Client ID"
+labelInsecure = "Certificate validation"
+labelPassword = "Password"
+labelTopic = "Topic"
+labelUser = "Username"
+publishing = "Publishing"
+title = "MQTT"
+
+[config.network]
+descriptionHost = "Use .local suffix to enable mDNS. Relevant for discovery of the mobile app and some OCPP chargers."
+descriptionPort = "Port for the web interface and API. You'll need to update your browser URL if you change this."
+descriptionSchema = "Only affects how URLs are generated. Selecting HTTPS will not enable encryption."
+labelHost = "Hostname"
+labelPort = "Port"
+labelSchema = "Schema"
+title = "Network"
+
 [config.options]
 
 [config.options.endianness]
@@ -88,7 +184,21 @@ titleEdit = "Edit Solar Meter"
 
 [config.section]
 general = "General"
+grid = "Grid"
+integrations = "Integrations"
+loadpoints = "Charging points"
+meter = "Solar & Battery"
 system = "System"
+vehicles = "Vehicles"
+
+[config.sponsor]
+addToken = "Enter sponsor token"
+changeToken = "Change sponsor token"
+description = "The sponsoring model helps us to maintain the project and sustainably build new and exciting features. As a sponsor you get access to all charger implementations."
+descriptionToken = "You get the token from {url}. We also offer a trial token for testing."
+error = "The sponsor token is not valid."
+labelToken = "Sponsor token"
+title = "Sponsorship"
 
 [config.system]
 logs = "Logs"
@@ -98,6 +208,10 @@ restartRequiredMessage = "Configuration changed."
 restartingDescription = "Please wait…"
 restartingMessage = "Restarting evcc."
 
+[config.tariffs]
+description = "Define your energy tariffs to calculate the costs of your charging sessions."
+title = "Tariffs"
+
 [config.title]
 description = "Displayed on main screen and browser tab."
 label = "Title"
@@ -428,7 +542,9 @@ modalTitle = "Notifications"
 
 [offline]
 message = "Not connected to a server."
-reload = "Reload?"
+restart = "Restart"
+restartNeeded = "Required to apply changes."
+restarting = "Server will be back in a moment."
 
 [passwordModal]
 description = "Set a password to protect the configuration settings. Using the main screen is still possible without login."
@@ -514,7 +630,7 @@ auto = "Automatic"
 label = "Language"
 
 [settings.sponsorToken]
-expires = "You sponsor token expires {inXDays}. {getNewToken} and update your configuration file."
+expires = "You sponsor token expires {inXDays}. {getNewToken} and update it here."
 getNew = "Grab a fresh one"
 hint = "Note: We will automate this in the future."
 
diff --git a/package-lock.json b/package-lock.json
index 7cd6683e6..accb044ef 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -8,6 +8,7 @@
       "license": "MIT",
       "dependencies": {
         "@babel/core": "^7.17.2",
+        "@guolao/vue-monaco-editor": "^1.5.1",
         "@h2d2/shopicons": "^1.2.0",
         "@histoire/plugin-vue": "^0.17.1",
         "@playwright/test": "^1.34.3",
@@ -2149,6 +2150,50 @@
         "node": "^12.22.0 || ^14.17.0 || >=16.0.0"
       }
     },
+    "node_modules/@guolao/vue-monaco-editor": {
+      "version": "1.5.1",
+      "resolved": "https://registry.npmjs.org/@guolao/vue-monaco-editor/-/vue-monaco-editor-1.5.1.tgz",
+      "integrity": "sha512-nhbQHDAwsxrdH/yitcrBgAkN8Cae0IEiYe/M3LWK8bSJRfapkbMyfTHE6Gcxsxa/6efSUZAPDo8dJWBDx5GZyA==",
+      "dependencies": {
+        "@monaco-editor/loader": "^1.4.0",
+        "vue-demi": "latest"
+      },
+      "peerDependencies": {
+        "@vue/composition-api": "^1.7.1",
+        "monaco-editor": ">=0.43.0",
+        "vue": "^2.6.14 || >=3.0.0"
+      },
+      "peerDependenciesMeta": {
+        "@vue/composition-api": {
+          "optional": true
+        }
+      }
+    },
+    "node_modules/@guolao/vue-monaco-editor/node_modules/vue-demi": {
+      "version": "0.14.7",
+      "resolved": "https://registry.npmjs.org/vue-demi/-/vue-demi-0.14.7.tgz",
+      "integrity": "sha512-EOG8KXDQNwkJILkx/gPcoL/7vH+hORoBaKgGe+6W7VFMvCYJfmF2dGbvgDroVnI8LU7/kTu8mbjRZGBU1z9NTA==",
+      "hasInstallScript": true,
+      "bin": {
+        "vue-demi-fix": "bin/vue-demi-fix.js",
+        "vue-demi-switch": "bin/vue-demi-switch.js"
+      },
+      "engines": {
+        "node": ">=12"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/antfu"
+      },
+      "peerDependencies": {
+        "@vue/composition-api": "^1.0.0-rc.1",
+        "vue": "^3.0.0-0 || ^2.6.0"
+      },
+      "peerDependenciesMeta": {
+        "@vue/composition-api": {
+          "optional": true
+        }
+      }
+    },
     "node_modules/@h2d2/shopicons": {
       "version": "1.9.0",
       "resolved": "https://registry.npmjs.org/@h2d2/shopicons/-/shopicons-1.9.0.tgz",
@@ -2462,6 +2507,17 @@
         "@lezer/common": "^1.0.0"
       }
     },
+    "node_modules/@monaco-editor/loader": {
+      "version": "1.4.0",
+      "resolved": "https://registry.npmjs.org/@monaco-editor/loader/-/loader-1.4.0.tgz",
+      "integrity": "sha512-00ioBig0x642hytVspPl7DbQyaSWRaolYie/UFNjoTdvoKPzo6xrXLhTk9ixgIKcLH5b5vDOjVNiGyY+uDCUlg==",
+      "dependencies": {
+        "state-local": "^1.0.6"
+      },
+      "peerDependencies": {
+        "monaco-editor": ">= 0.21.0 < 1"
+      }
+    },
     "node_modules/@nodelib/fs.scandir": {
       "version": "2.1.5",
       "resolved": "https://registry.npmjs.org/@nodelib/fs.scandir/-/fs.scandir-2.1.5.tgz",
@@ -6930,6 +6986,12 @@
         "ufo": "^1.5.3"
       }
     },
+    "node_modules/monaco-editor": {
+      "version": "0.47.0",
+      "resolved": "https://registry.npmjs.org/monaco-editor/-/monaco-editor-0.47.0.tgz",
+      "integrity": "sha512-VabVvHvQ9QmMwXu4du008ZDuyLnHs9j7ThVFsiJoXSOQk18+LF89N4ADzPbFenm0W4V2bGHnFBztIRQTgBfxzw==",
+      "peer": true
+    },
     "node_modules/mri": {
       "version": "1.2.0",
       "resolved": "https://registry.npmjs.org/mri/-/mri-1.2.0.tgz",
@@ -8194,6 +8256,11 @@
       "resolved": "https://registry.npmjs.org/stackback/-/stackback-0.0.2.tgz",
       "integrity": "sha512-1XMJE5fQo1jGH6Y/7ebnwPOBEkIEnT4QF32d5R1+VXdXveM0IBMJt8zfaxX1P3QhVwrYe+576+jkANtSS2mBbw=="
     },
+    "node_modules/state-local": {
+      "version": "1.0.7",
+      "resolved": "https://registry.npmjs.org/state-local/-/state-local-1.0.7.tgz",
+      "integrity": "sha512-HTEHMNieakEnoe33shBYcZ7NX83ACUjCu8c40iOGEZsngj9zRnkqS9j1pqQPXwobB0ZcVTk27REb7COQ0UR59w=="
+    },
     "node_modules/statuses": {
       "version": "1.5.0",
       "resolved": "https://registry.npmjs.org/statuses/-/statuses-1.5.0.tgz",
diff --git a/package.json b/package.json
index 953509d95..a114046a4 100644
--- a/package.json
+++ b/package.json
@@ -15,6 +15,7 @@
   "main": "index.js",
   "dependencies": {
     "@babel/core": "^7.17.2",
+    "@guolao/vue-monaco-editor": "^1.5.1",
     "@h2d2/shopicons": "^1.2.0",
     "@histoire/plugin-vue": "^0.17.1",
     "@playwright/test": "^1.34.3",
@@ -66,4 +67,4 @@
   "devDependencies": {
     "@typescript-eslint/eslint-plugin": "^7.7.1"
   }
-}
+}
\ No newline at end of file
diff --git a/playwright.config.js b/playwright.config.js
index c10ac944d..6ee55f81e 100644
--- a/playwright.config.js
+++ b/playwright.config.js
@@ -8,7 +8,6 @@ export default defineConfig({
   forbidOnly: !!process.env.CI,
   retries: process.env.CI ? 2 : 0,
   timeout: 15000, // 15s (default 30s)
-  expect: { timeout: 2500 }, // 2.5s (default 5s)
   workers: process.env.CI ? 3 : 8,
   reporter: "html",
   use: {
diff --git a/provider/config.go b/provider/config.go
index 38a540e72..3935428a8 100644
--- a/provider/config.go
+++ b/provider/config.go
@@ -59,7 +59,7 @@ var registry providerRegistry = make(map[string]func(map[string]interface{}) (Pr
 // Config is the general provider config
 type Config struct {
 	Source string
-	Other  map[string]interface{} `mapstructure:",remain"`
+	Other  map[string]any `mapstructure:",remain" yaml:",inline"`
 }
 
 // NewIntGetterFromConfig creates a IntGetter from config
diff --git a/provider/mqtt/client.go b/provider/mqtt/client.go
index ba3f9718c..69702b7d6 100644
--- a/provider/mqtt/client.go
+++ b/provider/mqtt/client.go
@@ -26,11 +26,11 @@ func ClientID() string {
 
 // Config is the public configuration
 type Config struct {
-	Broker   string
-	User     string
-	Password string
-	ClientID string
-	Insecure bool
+	Broker   string `json:"broker"`
+	User     string `json:"user"`
+	Password string `json:"password"`
+	ClientID string `json:"clientID"`
+	Insecure bool   `json:"insecure"`
 }
 
 // Client encapsulates mqtt publish/subscribe functions
diff --git a/push/hub.go b/push/hub.go
index 1640dc6d1..1b141da56 100644
--- a/push/hub.go
+++ b/push/hub.go
@@ -94,7 +94,7 @@ func (h *Hub) apply(ev Event, tmpl string) (string, error) {
 }
 
 // Run is the Hub's main publishing loop
-func (h *Hub) Run(events <-chan Event, valueChan chan util.Param) {
+func (h *Hub) Run(events <-chan Event, valueChan chan<- util.Param) {
 	log := util.NewLogger("push")
 
 	for ev := range events {
diff --git a/server/db/settings/setting.go b/server/db/settings/setting.go
index 26a4e6b65..d0d1d8129 100644
--- a/server/db/settings/setting.go
+++ b/server/db/settings/setting.go
@@ -1,16 +1,22 @@
 package settings
 
 import (
+	"bytes"
 	"cmp"
 	"encoding/json"
 	"errors"
+	"io"
+	"reflect"
 	"slices"
 	"strconv"
+	"strings"
 	"sync"
 	"sync/atomic"
 	"time"
 
 	"github.com/evcc-io/evcc/server/db"
+	"github.com/evcc-io/evcc/util"
+	"gopkg.in/yaml.v3"
 )
 
 var ErrNotFound = errors.New("not found")
@@ -56,13 +62,34 @@ func All() []setting {
 	return res
 }
 
+func equal(key string) func(setting) bool {
+	return func(s setting) bool {
+		return s.Key == key
+	}
+}
+
+func Delete(key string) error {
+	mu.Lock()
+	defer mu.Unlock()
+
+	if idx := slices.IndexFunc(settings, equal(key)); idx >= 0 {
+		if err := db.Instance.Delete(setting{
+			Key: settings[idx].Key,
+		}).Error; err != nil {
+			return err
+		}
+
+		settings = slices.Delete(settings, idx, idx)
+	}
+
+	return nil
+}
+
 func SetString(key string, val string) {
 	mu.Lock()
 	defer mu.Unlock()
 
-	idx := slices.IndexFunc(settings, func(s setting) bool {
-		return s.Key == key
-	})
+	idx := slices.IndexFunc(settings, equal(key))
 
 	if idx < 0 {
 		settings = append(settings, setting{key, val})
@@ -97,13 +124,28 @@ func SetJson(key string, val any) error {
 	return err
 }
 
+func SetYaml(key string, val any) error {
+	var b bytes.Buffer
+	err := yaml.NewEncoder(&b).Encode(val)
+	if err == nil {
+		SetString(key, strings.TrimSpace(b.String()))
+	}
+	return err
+}
+
+func Exists(key string) bool {
+	mu.RLock()
+	defer mu.RUnlock()
+
+	s, err := String(key)
+	return err == nil && len(s) > 0
+}
+
 func String(key string) (string, error) {
 	mu.RLock()
 	defer mu.RUnlock()
 
-	idx := slices.IndexFunc(settings, func(s setting) bool {
-		return s.Key == key
-	})
+	idx := slices.IndexFunc(settings, equal(key))
 	if idx < 0 {
 		return "", ErrNotFound
 	}
@@ -144,10 +186,44 @@ func Bool(key string) (bool, error) {
 
 func Json(key string, res any) error {
 	s, err := String(key)
-	if err == nil {
-		err = json.Unmarshal([]byte(s), &res)
+	if err != nil {
+		return err
 	}
-	return err
+	if s == "" {
+		return ErrNotFound
+	}
+	return json.Unmarshal([]byte(s), &res)
+}
+
+func DecodeOtherSliceOrMap(other, res any) error {
+	var len int
+	if typ := reflect.TypeOf(other); typ.Kind() == reflect.Slice || typ.Kind() == reflect.Map {
+		len = reflect.ValueOf(other).Len()
+	} else {
+		panic("invalid kind: " + typ.Kind().String())
+	}
+
+	if len == 0 {
+		return nil
+	}
+
+	return util.DecodeOther(other, &res)
+}
+
+func Yaml(key string, other, res any) error {
+	s, err := String(key)
+	if err != nil {
+		return err
+	}
+	if s == "" {
+		return ErrNotFound
+	}
+
+	if err := yaml.NewDecoder(bytes.NewBuffer([]byte(s))).Decode(&other); err != nil && err != io.EOF {
+		return err
+	}
+
+	return DecodeOtherSliceOrMap(other, res)
 }
 
 // wrapping Settings into a struct for better decoupling
diff --git a/server/http.go b/server/http.go
index f109715ca..c9b933250 100644
--- a/server/http.go
+++ b/server/http.go
@@ -6,10 +6,14 @@ import (
 	"time"
 
 	eapi "github.com/evcc-io/evcc/api"
+	"github.com/evcc-io/evcc/api/globalconfig"
+	"github.com/evcc-io/evcc/charger/eebus"
+	"github.com/evcc-io/evcc/core/keys"
 	"github.com/evcc-io/evcc/core/site"
 	"github.com/evcc-io/evcc/server/assets"
 	"github.com/evcc-io/evcc/util"
 	"github.com/evcc-io/evcc/util/auth"
+	"github.com/evcc-io/evcc/util/config"
 	"github.com/evcc-io/evcc/util/telemetry"
 	"github.com/go-http-utils/etag"
 	"github.com/gorilla/handlers"
@@ -84,7 +88,7 @@ func (s *HTTPd) Router() *mux.Router {
 }
 
 // RegisterSiteHandlers connects the http handlers to the site
-func (s *HTTPd) RegisterSiteHandlers(site site.API, auth auth.Auth, cache *util.Cache) {
+func (s *HTTPd) RegisterSiteHandlers(site site.API, valueChan chan<- util.Param) {
 	router := s.Server.Handler.(*mux.Router)
 
 	// api
@@ -98,10 +102,10 @@ func (s *HTTPd) RegisterSiteHandlers(site site.API, auth auth.Auth, cache *util.
 	// site api
 	routes := map[string]route{
 		"health":                  {"GET", "/health", healthHandler(site)},
-		"state":                   {"GET", "/state", stateHandler(cache)},
 		"buffersoc":               {"POST", "/buffersoc/{value:[0-9.]+}", floatHandler(site.SetBufferSoc, site.GetBufferSoc)},
 		"bufferstartsoc":          {"POST", "/bufferstartsoc/{value:[0-9.]+}", floatHandler(site.SetBufferStartSoc, site.GetBufferStartSoc)},
 		"batterydischargecontrol": {"POST", "/batterydischargecontrol/{value:[a-z]+}", boolHandler(site.SetBatteryDischargeControl, site.GetBatteryDischargeControl)},
+		"maxgridsupply":           {"POST", "/maxgridsupply/{value:[0-9.]+}", floatHandler(site.SetMaxGridSupplyWhileBatteryCharging, site.GetMaxGridSupplyWhileBatteryCharging)},
 		"prioritysoc":             {"POST", "/prioritysoc/{value:[0-9.]+}", floatHandler(site.SetPrioritySoc, site.GetPrioritySoc)},
 		"residualpower":           {"POST", "/residualpower/{value:-?[0-9.]+}", floatHandler(site.SetResidualPower, site.GetResidualPower)},
 		"smartcost":               {"POST", "/smartcostlimit/{value:-?[0-9.]+}", updateSmartCostLimit(site)},
@@ -119,22 +123,11 @@ func (s *HTTPd) RegisterSiteHandlers(site site.API, auth auth.Auth, cache *util.
 
 	// config ui (secured)
 	configApi := api.PathPrefix("/config").Subrouter()
-	configApi.Use(ensureAuthHandler(auth))
 
+	// TODO clarify location of site config
 	configRoutes := map[string]route{
-		"templates":    {"GET", "/templates/{class:[a-z]+}", templatesHandler},
-		"products":     {"GET", "/products/{class:[a-z]+}", productsHandler},
-		"devices":      {"GET", "/devices/{class:[a-z]+}", devicesHandler},
-		"device":       {"GET", "/devices/{class:[a-z]+}/{id:[0-9.]+}", deviceConfigHandler},
-		"devicestatus": {"GET", "/devices/{class:[a-z]+}/{name:[a-zA-Z0-9_.:-]+}/status", deviceStatusHandler},
-		"site":         {"GET", "/site", siteHandler(site)},
-		"dirty":        {"GET", "/dirty", boolGetHandler(ConfigDirty)},
-		"updatesite":   {"PUT", "/site", updateSiteHandler(site)},
-		"newdevice":    {"POST", "/devices/{class:[a-z]+}", newDeviceHandler},
-		"updatedevice": {"PUT", "/devices/{class:[a-z]+}/{id:[0-9.]+}", updateDeviceHandler},
-		"deletedevice": {"DELETE", "/devices/{class:[a-z]+}/{id:[0-9.]+}", deleteDeviceHandler},
-		"testconfig":   {"POST", "/test/{class:[a-z]+}", testConfigHandler},
-		"testmerged":   {"POST", "/test/{class:[a-z]+}/merge/{id:[0-9.]+}", testConfigHandler},
+		"site":       {"GET", "/site", siteHandler(site)},
+		"updatesite": {"PUT", "/site", updateSiteHandler(site)},
 	}
 
 	for _, r := range configRoutes {
@@ -190,55 +183,113 @@ func (s *HTTPd) RegisterSiteHandlers(site site.API, auth auth.Auth, cache *util.
 	}
 }
 
-// RegisterAuthHandlers provides authentication handlers
-func (s *HTTPd) RegisterAuthHandlers(auth auth.Auth) {
-	router := s.Server.Handler.(*mux.Router)
-
-	// api
-	api := router.PathPrefix("/api/auth").Subrouter()
-	api.Use(jsonHandler)
-	api.Use(handlers.CompressHandler)
-	api.Use(handlers.CORS(
-		handlers.AllowedHeaders([]string{"Content-Type"}),
-	))
-
-	// auth api
-	routes := map[string]route{
-		"password": {"PUT", "/password", updatePasswordHandler(auth)},
-		"auth":     {"GET", "/status", authStatusHandler(auth)},
-		"login":    {"POST", "/login", loginHandler(auth)},
-		"logout":   {"POST", "/logout", logoutHandler},
-	}
-
-	for _, r := range routes {
-		api.Methods(r.Methods()...).Path(r.Pattern).Handler(r.HandlerFunc)
-	}
-}
-
 // RegisterSystemHandler provides system level handlers
-func (s *HTTPd) RegisterSystemHandler(auth auth.Auth, shutdown func()) {
+func (s *HTTPd) RegisterSystemHandler(valueChan chan<- util.Param, cache *util.Cache, shutdown func()) {
 	router := s.Server.Handler.(*mux.Router)
+	auth := auth.New()
 
 	// api
-	api := router.PathPrefix("/api/system").Subrouter()
+	api := router.PathPrefix("/api").Subrouter()
 	api.Use(jsonHandler)
-	api.Use(ensureAuthHandler(auth))
 	api.Use(handlers.CompressHandler)
 	api.Use(handlers.CORS(
 		handlers.AllowedHeaders([]string{"Content-Type"}),
 	))
 
-	// system api
-	routes := map[string]route{
-		"log":      {"GET", "/log", logHandler},
-		"logareas": {"GET", "/log/areas", logAreasHandler},
-		"shutdown": {"POST", "/shutdown", func(w http.ResponseWriter, r *http.Request) {
-			shutdown()
-			w.WriteHeader(http.StatusNoContent)
-		}},
+	{ // /api
+		routes := map[string]route{
+			"state": {"GET", "/state", stateHandler(cache)},
+		}
+
+		for _, r := range routes {
+			api.Methods(r.Methods()...).Path(r.Pattern).Handler(r.HandlerFunc)
+		}
 	}
 
-	for _, r := range routes {
-		api.Methods(r.Methods()...).Path(r.Pattern).Handler(r.HandlerFunc)
+	{
+		// api/auth
+		api := api.PathPrefix("/auth").Subrouter()
+
+		routes := map[string]route{
+			"password": {"PUT", "/password", updatePasswordHandler(auth)},
+			"auth":     {"GET", "/status", authStatusHandler(auth)},
+			"login":    {"POST", "/login", loginHandler(auth)},
+			"logout":   {"POST", "/logout", logoutHandler},
+		}
+
+		for _, r := range routes {
+			api.Methods(r.Methods()...).Path(r.Pattern).Handler(r.HandlerFunc)
+		}
+	}
+
+	{ // api/config
+		api := api.PathPrefix("/config").Subrouter()
+		api.Use(ensureAuthHandler(auth))
+
+		routes := map[string]route{
+			"templates":          {"GET", "/templates/{class:[a-z]+}", templatesHandler},
+			"products":           {"GET", "/products/{class:[a-z]+}", productsHandler},
+			"devices":            {"GET", "/devices/{class:[a-z]+}", devicesHandler},
+			"device":             {"GET", "/devices/{class:[a-z]+}/{id:[0-9.]+}", deviceConfigHandler},
+			"devicestatus":       {"GET", "/devices/{class:[a-z]+}/{name:[a-zA-Z0-9_.:-]+}/status", deviceStatusHandler},
+			"dirty":              {"GET", "/dirty", boolGetHandler(ConfigDirty)},
+			"newdevice":          {"POST", "/devices/{class:[a-z]+}", newDeviceHandler},
+			"updatedevice":       {"PUT", "/devices/{class:[a-z]+}/{id:[0-9.]+}", updateDeviceHandler},
+			"deletedevice":       {"DELETE", "/devices/{class:[a-z]+}/{id:[0-9.]+}", deleteDeviceHandler},
+			"testconfig":         {"POST", "/test/{class:[a-z]+}", testConfigHandler},
+			"testmerged":         {"POST", "/test/{class:[a-z]+}/merge/{id:[0-9.]+}", testConfigHandler},
+			"interval":           {"POST", "/interval/{value:[0-9.]+}", settingsSetDurationHandler(keys.Interval)},
+			"updatesponsortoken": {"POST", "/sponsortoken", updateSponsortokenHandler},
+			"deletesponsortoken": {"DELETE", "/sponsortoken", settingsDeleteHandler(keys.SponsorToken)},
+		}
+
+		// yaml handlers
+		for key, fun := range map[string]func() (any, any){
+			keys.EEBus:       func() (any, any) { return new(map[string]any), eebus.Config{} },
+			keys.Hems:        func() (any, any) { return new(map[string]any), config.Typed{} },
+			keys.Tariffs:     func() (any, any) { return new(map[string]any), globalconfig.Tariffs{} },
+			keys.Messaging:   func() (any, any) { return new(map[string]any), globalconfig.Messaging{} },       // has default
+			keys.ModbusProxy: func() (any, any) { return new([]map[string]any), []globalconfig.ModbusProxy{} }, // slice
+			keys.Circuits:    func() (any, any) { return new([]map[string]any), []config.Named{} },             // slice
+		} {
+			other, struc := fun()
+			routes[key] = route{Method: "GET", Pattern: "/" + key, HandlerFunc: settingsGetStringHandler(key)}
+			routes["update"+key] = route{Method: "POST", Pattern: "/" + key, HandlerFunc: settingsSetYamlHandler(key, other, struc)}
+			routes["delete"+key] = route{Method: "DELETE", Pattern: "/" + key, HandlerFunc: settingsDeleteHandler(key)}
+		}
+
+		// json handlers
+		for key, fun := range map[string]func() any{
+			keys.Network: func() any { return new(globalconfig.Network) }, // has default
+			keys.Mqtt:    func() any { return new(globalconfig.Mqtt) },    // has default
+			keys.Influx:  func() any { return new(globalconfig.Influx) },
+		} {
+			// routes[key] = route{Method: "GET", Pattern: "/" + key, HandlerFunc: settingsGetJsonHandler(key, fun())}
+			routes["update"+key] = route{Method: "POST", Pattern: "/" + key, HandlerFunc: settingsSetJsonHandler(key, valueChan, fun())}
+			routes["delete"+key] = route{Method: "DELETE", Pattern: "/" + key, HandlerFunc: settingsDeleteJsonHandler(key, valueChan, fun())}
+		}
+
+		for _, r := range routes {
+			api.Methods(r.Methods()...).Path(r.Pattern).Handler(r.HandlerFunc)
+		}
+	}
+
+	{ // api/system
+		api := api.PathPrefix("/system").Subrouter()
+		api.Use(ensureAuthHandler(auth))
+
+		// system api
+		routes := map[string]route{
+			"log":      {"GET", "/log", logHandler},
+			"logareas": {"GET", "/log/areas", logAreasHandler},
+			"shutdown": {"POST", "/shutdown", func(w http.ResponseWriter, r *http.Request) {
+				shutdown()
+				w.WriteHeader(http.StatusNoContent)
+			}},
+		}
+
+		for _, r := range routes {
+			api.Methods(r.Methods()...).Path(r.Pattern).Handler(r.HandlerFunc)
+		}
 	}
 }
diff --git a/server/http_config_helper.go b/server/http_config_helper.go
index bc87cc2cb..49020bc3b 100644
--- a/server/http_config_helper.go
+++ b/server/http_config_helper.go
@@ -2,6 +2,7 @@ package server
 
 import (
 	"errors"
+	"slices"
 	"sync"
 
 	"github.com/evcc-io/evcc/api"
@@ -133,7 +134,11 @@ func testInstance(instance any) map[string]testResult {
 
 	if dev, ok := instance.(api.Battery); ok {
 		val, err := dev.Soc()
-		res["soc"] = makeResult(val, err)
+		key := "soc"
+		if fd, ok := instance.(api.FeatureDescriber); ok && slices.Contains(fd.Features(), api.Heating) {
+			key = "temp"
+		}
+		res[key] = makeResult(val, err)
 	}
 
 	if dev, ok := instance.(api.VehicleOdometer); ok {
diff --git a/server/http_config_site_other_handler.go b/server/http_config_site_other_handler.go
new file mode 100644
index 000000000..6ee5a7b43
--- /dev/null
+++ b/server/http_config_site_other_handler.go
@@ -0,0 +1,34 @@
+package server
+
+import (
+	"encoding/json"
+	"net/http"
+
+	"github.com/evcc-io/evcc/core/keys"
+	"github.com/evcc-io/evcc/server/db/settings"
+	"github.com/evcc-io/evcc/util/sponsor"
+)
+
+func updateSponsortokenHandler(w http.ResponseWriter, r *http.Request) {
+	var req struct {
+		Token string `json:"token"`
+	}
+
+	if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
+		jsonError(w, http.StatusBadRequest, err)
+		return
+	}
+
+	if req.Token != "" {
+		if err := sponsor.ConfigureSponsorship(req.Token); err != nil {
+			jsonError(w, http.StatusBadRequest, err)
+			return
+		}
+	}
+
+	// TODO find better place
+	settings.SetString(keys.SponsorToken, req.Token)
+	setConfigDirty()
+
+	jsonResult(w, sponsor.Status())
+}
diff --git a/server/http_global_settings_handler.go b/server/http_global_settings_handler.go
new file mode 100644
index 000000000..7c46a623e
--- /dev/null
+++ b/server/http_global_settings_handler.go
@@ -0,0 +1,113 @@
+package server
+
+import (
+	"bytes"
+	"encoding/json"
+	"io"
+	"net/http"
+	"strconv"
+	"strings"
+	"time"
+
+	"github.com/evcc-io/evcc/server/db/settings"
+	"github.com/evcc-io/evcc/util"
+	"github.com/gorilla/mux"
+	"gopkg.in/yaml.v3"
+)
+
+func settingsGetStringHandler(key string) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		res, _ := settings.String(key)
+		jsonResult(w, res)
+	}
+}
+
+func settingsDeleteHandler(key string) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		settings.SetString(key, "")
+		jsonResult(w, true)
+	}
+}
+
+func settingsSetDurationHandler(key string) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		vars := mux.Vars(r)
+
+		val, err := strconv.Atoi(vars["value"])
+		if err != nil {
+			jsonError(w, http.StatusBadRequest, err)
+			return
+		}
+
+		settings.SetInt(key, int64(time.Second*time.Duration(val)))
+		setConfigDirty()
+
+		jsonResult(w, val)
+	}
+}
+
+func settingsSetYamlHandler(key string, other, struc any) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		b, err := io.ReadAll(r.Body)
+		if err != nil {
+			jsonError(w, http.StatusBadRequest, err)
+			return
+		}
+
+		if err := yaml.NewDecoder(bytes.NewBuffer(b)).Decode(&other); err != nil && err != io.EOF {
+			jsonError(w, http.StatusBadRequest, err)
+			return
+		}
+
+		if err := settings.DecodeOtherSliceOrMap(other, &struc); err != nil {
+			jsonError(w, http.StatusBadRequest, err)
+			return
+		}
+
+		val := strings.TrimSpace(string(b))
+		settings.SetString(key, val)
+		setConfigDirty()
+
+		jsonResult(w, val)
+	}
+}
+
+// func settingsGetJsonHandler(key string, struc any) http.HandlerFunc {
+// 	return func(w http.ResponseWriter, r *http.Request) {
+// 		if err := settings.Json(key, &struc); err != nil && err != settings.ErrNotFound {
+// 			jsonError(w, http.StatusInternalServerError, err)
+// 			return
+// 		}
+
+// 		jsonResult(w, struc)
+// 	}
+// }
+
+func settingsSetJsonHandler(key string, valueChan chan<- util.Param, struc any) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		dec := json.NewDecoder(r.Body)
+		dec.DisallowUnknownFields()
+		if err := dec.Decode(&struc); err != nil {
+			jsonError(w, http.StatusBadRequest, err)
+			return
+		}
+
+		settings.SetJson(key, struc)
+		setConfigDirty()
+
+		valueChan <- util.Param{Key: key, Val: struc}
+
+		jsonResult(w, true)
+	}
+}
+
+func settingsDeleteJsonHandler(key string, valueChan chan<- util.Param, struc any) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		settings.SetString(key, "")
+		setConfigDirty()
+
+		valueChan <- util.Param{Key: key, Val: struc}
+
+		jsonResult(w, true)
+	}
+}
diff --git a/server/http_handler_test.go b/server/http_handler_test.go
deleted file mode 100644
index 9fd70b106..000000000
--- a/server/http_handler_test.go
+++ /dev/null
@@ -1,17 +0,0 @@
-package server
-
-import (
-	"math"
-	"testing"
-
-	"github.com/stretchr/testify/assert"
-)
-
-func TestNaNInf(t *testing.T) {
-	c := map[string]any{
-		"foo": math.NaN(),
-		"bar": math.Inf(0),
-	}
-	encodeFloats(c)
-	assert.Equal(t, map[string]any{"foo": nil, "bar": nil}, c, "NaN not encoded as nil")
-}
diff --git a/server/http_site_handler.go b/server/http_site_handler.go
index 58285f870..7f6e2f3b6 100644
--- a/server/http_site_handler.go
+++ b/server/http_site_handler.go
@@ -5,7 +5,6 @@ import (
 	"errors"
 	"fmt"
 	"io/fs"
-	"math"
 	"net/http"
 	"strconv"
 	"strings"
@@ -16,11 +15,13 @@ import (
 	"github.com/evcc-io/evcc/core/site"
 	"github.com/evcc-io/evcc/server/assets"
 	"github.com/evcc-io/evcc/util"
+	"github.com/evcc-io/evcc/util/encode"
 	"github.com/evcc-io/evcc/util/jq"
 	"github.com/evcc-io/evcc/util/logstash"
 	"github.com/gorilla/mux"
 	"github.com/itchyny/gojq"
 	"golang.org/x/text/language"
+	"gopkg.in/yaml.v3"
 )
 
 var ignoreState = []string{"releaseNotes"} // excessive size
@@ -85,7 +86,26 @@ func jsonResult(w http.ResponseWriter, res interface{}) {
 
 func jsonError(w http.ResponseWriter, status int, err error) {
 	w.WriteHeader(status)
-	jsonWrite(w, map[string]interface{}{"error": err.Error()})
+
+	res := struct {
+		Error string `json:"error"`
+		Line  int    `json:"line,omitempty"`
+	}{
+		Error: err.Error(),
+	}
+
+	var (
+		ype *yaml.ParserError
+		yue yaml.UnmarshalError
+	)
+	switch {
+	case errors.As(err, &ype):
+		res.Line = ype.Line
+	case errors.As(err, &yue):
+		res.Line = yue.Line
+	}
+
+	jsonWrite(w, res)
 }
 
 func handler[T any](conv func(string) (T, error), set func(T) error, get func() T) http.HandlerFunc {
@@ -128,19 +148,6 @@ func boolGetHandler(get func() bool) http.HandlerFunc {
 	}
 }
 
-// encodeFloats replaces NaN and Inf with nil
-// TODO handle hierarchical data
-func encodeFloats(data map[string]any) {
-	for k, v := range data {
-		switch v := v.(type) {
-		case float64:
-			if math.IsNaN(v) || math.IsInf(v, 0) {
-				data[k] = nil
-			}
-		}
-	}
-}
-
 // updateSmartCostLimit sets the smart cost limit globally
 func updateSmartCostLimit(site site.API) http.HandlerFunc {
 	return func(w http.ResponseWriter, r *http.Request) {
@@ -163,13 +170,11 @@ func updateSmartCostLimit(site site.API) http.HandlerFunc {
 // stateHandler returns the combined state
 func stateHandler(cache *util.Cache) http.HandlerFunc {
 	return func(w http.ResponseWriter, r *http.Request) {
-		res := cache.State()
+		res := cache.State(encode.NewEncoder(encode.WithDuration()))
 		for _, k := range ignoreState {
 			delete(res, k)
 		}
 
-		encodeFloats(res)
-
 		if q := r.URL.Query().Get("jq"); q != "" {
 			q = strings.TrimPrefix(q, ".result")
 
diff --git a/server/influxdb.go b/server/influxdb.go
index 4ccb18c4e..64edd9188 100644
--- a/server/influxdb.go
+++ b/server/influxdb.go
@@ -16,17 +16,6 @@ import (
 	influxlog "github.com/influxdata/influxdb-client-go/v2/log"
 )
 
-// InfluxConfig is the influx db configuration
-type InfluxConfig struct {
-	URL      string
-	Database string
-	Token    string
-	Org      string
-	User     string
-	Password string
-	Interval time.Duration
-}
-
 // Influx is a influx publisher
 type Influx struct {
 	sync.Mutex
diff --git a/server/mqtt.go b/server/mqtt.go
index 199d8d635..f0f399321 100644
--- a/server/mqtt.go
+++ b/server/mqtt.go
@@ -62,7 +62,7 @@ func (m *MQTT) encode(v interface{}) string {
 		return strconv.FormatInt(val.Unix(), 10)
 	case time.Duration:
 		// must be before stringer to convert to seconds instead of string
-		return fmt.Sprintf("%d", int64(val.Seconds()))
+		return strconv.Itoa(int(val.Seconds()))
 	case fmt.Stringer:
 		return val.String()
 	default:
diff --git a/server/socket_helper.go b/server/socket_helper.go
index a8a0e6413..c512da66e 100644
--- a/server/socket_helper.go
+++ b/server/socket_helper.go
@@ -3,49 +3,27 @@ package server
 import (
 	"encoding/json"
 	"fmt"
-	"math"
 	"reflect"
 	"strings"
-	"time"
 
 	"github.com/evcc-io/evcc/util"
+	"github.com/evcc-io/evcc/util/encode"
 )
 
-func encode(v interface{}) (string, error) {
-	var s string
-	switch val := v.(type) {
-	case time.Time:
-		if val.IsZero() {
-			s = "null"
-		} else {
-			s = fmt.Sprintf(`"%s"`, val.Format(time.RFC3339))
-		}
-	case time.Duration:
-		// must be before stringer to convert to seconds instead of string
-		s = fmt.Sprintf("%d", int64(val.Seconds()))
-	case float64:
-		if math.IsNaN(val) {
-			s = "null"
-		} else {
-			s = fmt.Sprintf("%.5g", val)
-		}
-	default:
-		if b, err := json.Marshal(v); err == nil {
-			s = string(b)
-		} else {
-			return "", err
-		}
-	}
-	return s, nil
+var enc = encode.NewEncoder(encode.WithDuration())
+
+func encodeAsString(v any) (string, error) {
+	b, err := json.Marshal(enc.Encode(v))
+	return string(b), err
 }
 
-func encodeSlice(v interface{}) (string, error) {
+func encodeSliceAsString(v any) (string, error) {
 	rv := reflect.ValueOf(v)
 	res := make([]string, rv.Len())
 
 	for i := 0; i < rv.Len(); i++ {
 		var err error
-		if res[i], err = encode(rv.Index(i).Interface()); err != nil {
+		if res[i], err = encodeAsString(rv.Index(i).Interface()); err != nil {
 			return "", err
 		}
 	}
@@ -61,9 +39,9 @@ func kv(p util.Param) string {
 
 	// unwrap slices
 	if p.Val != nil && reflect.TypeOf(p.Val).Kind() == reflect.Slice {
-		val, err = encodeSlice(p.Val)
+		val, err = encodeSliceAsString(p.Val)
 	} else {
-		val, err = encode(p.Val)
+		val, err = encodeAsString(p.Val)
 	}
 
 	if err != nil {
diff --git a/server/socket_test.go b/server/socket_test.go
index 03288eb91..5817c1284 100644
--- a/server/socket_test.go
+++ b/server/socket_test.go
@@ -18,16 +18,16 @@ func TestEncode(t *testing.T) {
 	}{
 		{int64(1), "1"},
 		{math.NaN(), "null"},
-		{float64(1.23456), "1.2346"},
+		{float64(1.23456), "1.235"},
 		{"1.2345", "\"1.2345\""},
 		{time.Hour, "3600"},
 		{"minpv", "\"minpv\""},
 		{time.Time{}, "null"},
-		{now, "\"" + now.Format(time.RFC3339) + "\""},
+		{now, `"` + now.Format(time.RFC3339) + `"`},
 	}
 
 	for _, tc := range tc {
-		out, err := encode(tc.in)
+		out, err := encodeAsString(tc.in)
 		require.NoError(t, err)
 		assert.Equal(t, tc.out, out)
 	}
@@ -44,7 +44,7 @@ func TestEncodeSlice(t *testing.T) {
 	}
 
 	for _, tc := range tc {
-		out, err := encodeSlice(tc.in)
+		out, err := encodeSliceAsString(tc.in)
 		require.NoError(t, err)
 		assert.Equal(t, tc.out, out)
 	}
diff --git a/tests/auth.spec.js b/tests/auth.spec.js
index 32233cb24..1092137f1 100644
--- a/tests/auth.spec.js
+++ b/tests/auth.spec.js
@@ -109,7 +109,7 @@ test("update password", async ({ page }) => {
   await loginOld.getByRole("button", { name: "Login" }).click();
 
   // update password
-  await page.getByTestId("generalconfig-password").getByRole("link", { name: "edit" }).click();
+  await page.getByTestId("generalconfig-password").getByRole("button", { name: "edit" }).click();
   await expect(modal.getByRole("heading", { name: "Update Administrator Password" })).toBeVisible();
   await modal.getByLabel("Current password").fill(oldPassword);
   await modal.getByLabel("New password").fill(newPassword);
@@ -131,7 +131,7 @@ test("update password", async ({ page }) => {
   await expect(page.getByRole("heading", { name: "Configuration" })).toBeVisible();
 
   // revert password
-  await page.getByTestId("generalconfig-password").getByRole("link", { name: "edit" }).click();
+  await page.getByTestId("generalconfig-password").getByRole("button", { name: "edit" }).click();
   await modal.getByLabel("Current password").fill(newPassword);
   await modal.getByLabel("New password").fill(oldPassword);
   await modal.getByLabel("Repeat password").fill(oldPassword);
diff --git a/tests/config-meters.spec.js b/tests/config-meters.spec.js
index fa3823429..24d3b1701 100644
--- a/tests/config-meters.spec.js
+++ b/tests/config-meters.spec.js
@@ -23,7 +23,7 @@ async function login(page) {
 async function enableExperimental(page) {
   await page
     .getByTestId("generalconfig-experimental")
-    .getByRole("link", { name: "change" })
+    .getByRole("button", { name: "edit" })
     .click();
   await page.getByLabel("Experimental 🧪").click();
   await page.getByRole("button", { name: "Close" }).click();
@@ -52,8 +52,8 @@ test.describe("meters", async () => {
     await meterModal.getByLabel("IP address or hostname").fill(simulatorHost());
     await expect(meterModal.getByRole("button", { name: "Validate & save" })).toBeVisible();
     await meterModal.getByRole("link", { name: "validate" }).click();
-    await expect(meterModal.getByText("SoC: 75.0%")).toBeVisible();
-    await expect(meterModal.getByText("Power: -2.5 kW")).toBeVisible();
+    await expect(meterModal.getByTestId("device-tag-soc")).toContainText("75.0%");
+    await expect(meterModal.getByTestId("device-tag-power")).toContainText("-2.5 kW");
     await meterModal.getByRole("button", { name: "Save" }).click();
     await expect(page.getByTestId("battery")).toBeVisible(1);
     await expect(page.getByTestId("battery")).toContainText("openems");
@@ -63,11 +63,12 @@ test.describe("meters", async () => {
     await meterModal.getByLabel("Battery capacity in kWh").fill("20");
     await meterModal.getByRole("button", { name: "Validate & save" }).click();
 
-    await expect(page.getByTestId("battery")).toBeVisible(1);
-    await expect(page.getByTestId("battery")).toContainText("openems");
-    await expect(page.getByTestId("battery").getByText("SoC: 75.0%")).toBeVisible();
-    await expect(page.getByTestId("battery").getByText("Power: -2.5 kW")).toBeVisible();
-    await expect(page.getByTestId("battery").getByText("Capacity: 20.0 kWh")).toBeVisible();
+    const battery = page.getByTestId("battery");
+    await expect(battery).toBeVisible(1);
+    await expect(battery).toContainText("openems");
+    await expect(battery.getByTestId("device-tag-soc")).toContainText("75.0%");
+    await expect(battery.getByTestId("device-tag-power")).toContainText("-2.5 kW");
+    await expect(battery.getByTestId("device-tag-capacity")).toContainText("20.0 kWh");
 
     // restart and check in main ui
     await restart(CONFIG_EMPTY);
diff --git a/tests/config-mqtt.spec.js b/tests/config-mqtt.spec.js
new file mode 100644
index 000000000..9d253f49e
--- /dev/null
+++ b/tests/config-mqtt.spec.js
@@ -0,0 +1,76 @@
+import { test, expect } from "@playwright/test";
+import { start, stop, restart, baseUrl } from "./evcc";
+
+const CONFIG = "config-empty.evcc.yaml";
+
+test.use({ baseURL: baseUrl() });
+
+test.beforeEach(async ({ page }) => {
+  await start(CONFIG, "password.sql");
+  await page.goto("/#/config");
+  await login(page);
+  await enableExperimental(page);
+});
+
+test.afterEach(async () => {
+  await stop();
+});
+
+async function login(page) {
+  await page.locator("#loginPassword").fill("secret");
+  await page.getByRole("button", { name: "Login" }).click();
+}
+
+async function enableExperimental(page) {
+  await page
+    .getByTestId("generalconfig-experimental")
+    .getByRole("button", { name: "edit" })
+    .click();
+  await page.getByLabel("Experimental 🧪").click();
+  await page.getByRole("button", { name: "Close" }).click();
+}
+
+test.describe("mqtt", async () => {
+  test("mqtt not configured", async ({ page }) => {
+    await expect(page.getByTestId("mqtt")).toBeVisible();
+    await expect(page.getByTestId("mqtt")).toContainText(["Configured", "no"].join(""));
+  });
+
+  test("mqtt via ui", async ({ page }) => {
+    await page.getByTestId("mqtt").getByRole("button", { name: "edit" }).click();
+    const modal = await page.getByTestId("mqtt-modal");
+
+    await modal.getByLabel("Broker").fill("unknown.example.org");
+    await modal.getByLabel("Topic").fill("my-topic");
+    await modal.getByLabel("Client ID").fill("my-client-id");
+
+    await page.getByRole("button", { name: "Save" }).click();
+    await expect(modal.getByTestId("error")).not.toBeVisible();
+    await expect(modal).not.toBeVisible();
+
+    // restart button appears
+    const restartButton = await page
+      .getByTestId("bottom-banner")
+      .getByRole("button", { name: "Restart" });
+    await expect(restartButton).toBeVisible();
+
+    await restart(CONFIG);
+
+    // config error
+    await expect(restartButton).not.toBeVisible();
+    await expect(page.getByTestId("mqtt")).toHaveClass(/round-box--error/);
+    await expect(page.getByTestId("mqtt")).toContainText(
+      ["Broker", "unknown.example.org", "Topic", "my-topic"].join("")
+    );
+    await expect(page.getByTestId("bottom-banner")).toContainText("failed configuring mqtt");
+
+    await page.getByTestId("mqtt").getByRole("button", { name: "edit" }).click();
+    await page.getByRole("button", { name: "Remove" }).click();
+    await expect(page.getByTestId("mqtt")).toContainText(["Configured", "no"].join(""));
+    await expect(restartButton).toBeVisible();
+    await restart(CONFIG);
+    await expect(restartButton).not.toBeVisible();
+    await expect(page.getByTestId("mqtt")).not.toHaveClass(/round-box--error/);
+    await expect(page.getByTestId("mqtt")).toContainText(["Configured", "no"].join(""));
+  });
+});
diff --git a/tests/config-tariffs.spec.js b/tests/config-tariffs.spec.js
new file mode 100644
index 000000000..853c5f98e
--- /dev/null
+++ b/tests/config-tariffs.spec.js
@@ -0,0 +1,117 @@
+import { test, expect } from "@playwright/test";
+import { start, stop, restart, baseUrl } from "./evcc";
+
+const CONFIG_EMPTY = "config-empty.evcc.yaml";
+const CONFIG_WITH_TARIFFS = "config-with-tariffs.evcc.yaml";
+
+test.use({ baseURL: baseUrl() });
+
+test.afterEach(async () => {
+  await stop();
+});
+
+const SELECT_ALL = "ControlOrMeta+KeyA";
+
+async function login(page) {
+  await page.locator("#loginPassword").fill("secret");
+  await page.getByRole("button", { name: "Login" }).click();
+}
+
+async function enableExperimental(page) {
+  await page
+    .getByTestId("generalconfig-experimental")
+    .getByRole("button", { name: "edit" })
+    .click();
+  await page.getByLabel("Experimental 🧪").click();
+  await page.getByRole("button", { name: "Close" }).click();
+}
+
+async function goToConfig(page) {
+  await page.goto("/#/config");
+  await login(page);
+  await enableExperimental(page);
+}
+
+test.describe("tariffs", async () => {
+  test("tariffs not configured", async ({ page }) => {
+    await start(CONFIG_EMPTY, "password.sql");
+    await goToConfig(page);
+
+    await expect(page.getByTestId("tariffs")).toBeVisible();
+    await expect(page.getByTestId("tariffs")).toContainText(
+      ["Tariffs", "Currency", "EUR"].join("")
+    );
+  });
+
+  test("tariffs via ui", async ({ page }) => {
+    await start(CONFIG_EMPTY, "password.sql");
+    await goToConfig(page);
+
+    await page.getByTestId("tariffs").getByRole("button", { name: "edit" }).click();
+    const modal = await page.getByTestId("tariffs-modal");
+    await expect(modal).toBeVisible();
+
+    // default content
+    await expect(modal).toContainText("# currency: EUR");
+
+    // clear and enter invalid yaml
+    await modal.locator(".monaco-editor .view-line").nth(0).click();
+    await page.keyboard.press(SELECT_ALL);
+    await page.keyboard.press("Backspace");
+    await page.keyboard.press(SELECT_ALL);
+    await page.keyboard.press("Backspace");
+    await page.keyboard.type("foo: bar\n");
+    await page.getByRole("button", { name: "Save" }).click();
+    await expect(modal.getByTestId("error")).toContainText("invalid keys: foo");
+
+    // clear and enter valid yaml
+    await modal.locator(".monaco-editor .view-line").nth(0).click();
+    await page.keyboard.press(SELECT_ALL);
+    await page.keyboard.press("Backspace");
+    await page.keyboard.type("currency: CHF\n");
+    await page.keyboard.type("grid:\n");
+    await page.keyboard.type("  type: fixed\n");
+    await page.keyboard.type("price: 0.123\n");
+
+    await page.getByRole("button", { name: "Save" }).click();
+    await expect(modal.getByTestId("error")).not.toBeVisible();
+
+    // modal closes
+    await expect(modal).not.toBeVisible();
+
+    // restart button appears
+    const restartButton = await page
+      .getByTestId("bottom-banner")
+      .getByRole("button", { name: "Restart" });
+    await expect(restartButton).toBeVisible();
+
+    await restart(CONFIG_EMPTY);
+
+    // restart done
+    await expect(restartButton).not.toBeVisible();
+
+    await expect(page.getByTestId("tariffs")).toContainText(
+      ["Currency", "CHF", "Grid price", "12.3 rp"].join("")
+    );
+  });
+
+  test("tariffs from evcc.yaml", async ({ page }) => {
+    await start(CONFIG_WITH_TARIFFS, "password.sql");
+    await goToConfig(page);
+
+    await expect(page.getByTestId("tariffs")).toBeVisible();
+    await expect(page.getByTestId("tariffs")).toContainText(
+      [
+        "Tariffs",
+        "Currency",
+        "SEK",
+        "Grid price",
+        "0.3 SEK",
+        "Feed-in price",
+        "-0.1 SEK",
+        "Grid CO₂",
+        "300 g",
+      ].join("")
+    );
+  });
+});
diff --git a/tests/config-vehicles.spec.js b/tests/config-vehicles.spec.js
index 5e7e4c5e4..c35821e0f 100644
--- a/tests/config-vehicles.spec.js
+++ b/tests/config-vehicles.spec.js
@@ -21,7 +21,7 @@ async function login(page) {
 async function enableExperimental(page) {
   await page
     .getByTestId("generalconfig-experimental")
-    .getByRole("link", { name: "change" })
+    .getByRole("button", { name: "edit" })
     .click();
   await page.getByLabel("Experimental 🧪").click();
   await page.getByRole("button", { name: "Close" }).click();
diff --git a/tests/config-with-tariffs.evcc.yaml b/tests/config-with-tariffs.evcc.yaml
new file mode 100755
index 000000000..aa05642c0
--- /dev/null
+++ b/tests/config-with-tariffs.evcc.yaml
@@ -0,0 +1,53 @@
+site:
+  title: Hello World
+  meters:
+    grid: grid
+
+meters:
+  - name: grid
+    type: custom
+    power:
+      source: js
+      script: |
+        1000
+
+loadpoints:
+  - title: Carport
+    charger: charger
+
+vehicles:
+  - name: my_bike
+    type: template
+    template: offline
+    title: YAML Bike
+    icon: bike
+
+chargers:
+  - name: charger
+    type: custom
+    enable:
+      source: js
+      script:
+    enabled:
+      source: js
+      script: |
+        false
+    status:
+      source: js
+      script: |
+        "B"
+    maxcurrent:
+      source: js
+      script:
+
+tariffs:
+  currency: SEK
+  grid:
+    type: fixed
+    price: 0.30
+  feedin:
+    type: fixed
+    price: 0.10
+  co2:
+    type: fixed
+    price: 300
diff --git a/tests/config.spec.js b/tests/config.spec.js
index 15a9da81a..ba326787f 100644
--- a/tests/config.spec.js
+++ b/tests/config.spec.js
@@ -20,7 +20,7 @@ async function login(page) {
 async function enableExperimental(page) {
   await page
     .getByTestId("generalconfig-experimental")
-    .getByRole("link", { name: "change" })
+    .getByRole("button", { name: "edit" })
     .click();
   await page.getByLabel("Experimental 🧪").click();
   await page.getByRole("button", { name: "Close" }).click();
@@ -34,7 +34,7 @@ test.describe("basics", async () => {
     await login(page);
     await expect(page.getByRole("heading", { name: "Configuration" })).toBeVisible();
   });
-  test("alert box should always be visible", async ({ page }) => {
+  test.skip("alert box should always be visible", async ({ page }) => {
     await page.goto("/#/config");
     await login(page);
     await enableExperimental(page);
@@ -54,7 +54,7 @@ test.describe("general", async () => {
     await enableExperimental(page);
 
     await expect(page.getByTestId("generalconfig-title")).toContainText("Hello World");
-    await page.getByTestId("generalconfig-title").getByRole("link", { name: "edit" }).click();
+    await page.getByTestId("generalconfig-title").getByRole("button", { name: "edit" }).click();
     const modal = page.getByTestId("title-modal");
     await expect(modal).toBeVisible();
     await modal.getByLabel("Title").fill("Whoops World");
@@ -65,7 +65,7 @@ test.describe("general", async () => {
     await expect(page.getByTestId("generalconfig-title")).toContainText("Hello World");
 
     // change and save value
-    await page.getByTestId("generalconfig-title").getByRole("link", { name: "edit" }).click();
+    await page.getByTestId("generalconfig-title").getByRole("button", { name: "edit" }).click();
     await modal.getByLabel("Title").fill("Ahoy World");
     await modal.getByRole("button", { name: "Save" }).click();
     await expect(modal).not.toBeVisible();
diff --git a/tests/evcc.js b/tests/evcc.js
index b8ef6dd40..81309e745 100644
--- a/tests/evcc.js
+++ b/tests/evcc.js
@@ -65,9 +65,7 @@ async function _start(config) {
   instance.stdout.pipe(process.stdout);
   instance.stderr.pipe(process.stderr);
   instance.on("exit", (code) => {
-    if (code !== 0) {
-      throw new Error("evcc terminated", code);
-    }
+    console.log("evcc terminated", code);
   });
   await waitOn({ resources: [baseUrl()] });
 }
@@ -78,6 +76,9 @@ async function _stop() {
   console.log(res.status, res.statusText);
   const cookie = res.headers["set-cookie"];
   await axios.post(`${baseUrl()}/api/system/shutdown`, {}, { headers: { cookie } });
+  console.log("wait until network port is closed");
+  await waitOn({ resources: [`tcp:localhost:${port()}`], reverse: true });
+  console.log("evcc is down");
 }
 
 async function _clean() {
diff --git a/tests/logs.spec.js b/tests/logs.spec.js
index 867ec493d..7df2a289e 100644
--- a/tests/logs.spec.js
+++ b/tests/logs.spec.js
@@ -46,6 +46,6 @@ test.describe("features", async () => {
   test("content", async ({ page }) => {
     await page.goto("/#/log");
     await login(page);
-    await expect(page.getByTestId("log-content")).toContainText("starting ui and api at");
+    await expect(page.getByTestId("log-content")).toContainText("listening at");
   });
 });
diff --git a/util/cache.go b/util/cache.go
index 2818d4c34..a2746dc32 100644
--- a/util/cache.go
+++ b/util/cache.go
@@ -3,11 +3,14 @@ package util
 import (
 	"fmt"
 	"sync"
+
+	"github.com/evcc-io/evcc/util/encode"
+	"golang.org/x/exp/maps"
 )
 
 // Cache is a data store
 type Cache struct {
-	sync.Mutex
+	mu  sync.RWMutex
 	val map[string]Param
 }
 
@@ -48,30 +51,31 @@ func (c *Cache) Run(in <-chan Param) {
 	}
 }
 
-// State provides a structured copy of the cached values
-// Loadpoints are aggregated as loadpoints array
-func (c *Cache) State() map[string]interface{} {
-	c.Lock()
-	defer c.Unlock()
+// State provides a structured copy of the cached values.
+// Loadpoints are aggregated as loadpoints array.
+// Result values are formatted using encoder.
+func (c *Cache) State(enc encode.Encoder) map[string]any {
+	c.mu.RLock()
+	defer c.mu.RUnlock()
 
-	res := map[string]interface{}{}
-	lps := make(map[int]map[string]interface{})
+	res := make(map[string]any)
+	lps := make(map[int]map[string]any)
 
 	for _, param := range c.val {
 		if param.Loadpoint == nil {
-			res[param.Key] = param.Val
+			res[param.Key] = enc.Encode(param.Val)
 		} else {
 			lp, ok := lps[*param.Loadpoint]
 			if !ok {
-				lp = make(map[string]interface{})
+				lp = make(map[string]any)
 				lps[*param.Loadpoint] = lp
 			}
-			lp[param.Key] = param.Val
+			lp[param.Key] = enc.Encode(param.Val)
 		}
 	}
 
 	// convert map to array
-	loadpoints := make([]map[string]interface{}, len(lps))
+	loadpoints := make([]map[string]any, len(lps))
 	for id, lp := range lps {
 		loadpoints[id] = lp
 	}
@@ -82,29 +86,24 @@ func (c *Cache) State() map[string]interface{} {
 
 // All provides a copy of the cached values
 func (c *Cache) All() []Param {
-	c.Lock()
-	defer c.Unlock()
+	c.mu.RLock()
+	defer c.mu.RUnlock()
 
-	copy := make([]Param, 0, len(c.val))
-	for _, val := range c.val {
-		copy = append(copy, val)
-	}
-
-	return copy
+	return maps.Values(c.val)
 }
 
 // Add entry to cache
 func (c *Cache) Add(key string, param Param) {
-	c.Lock()
-	defer c.Unlock()
+	c.mu.Lock()
+	defer c.mu.Unlock()
 
 	c.val[key] = param
 }
 
 // Get entry from cache
 func (c *Cache) Get(key string) Param {
-	c.Lock()
-	defer c.Unlock()
+	c.mu.RLock()
+	defer c.mu.RUnlock()
 
 	if val, ok := c.val[key]; ok {
 		return val
diff --git a/util/config/types.go b/util/config/types.go
index 9e7334b9c..4af9e13b7 100644
--- a/util/config/types.go
+++ b/util/config/types.go
@@ -5,14 +5,14 @@ import (
 )
 
 type Typed struct {
-	Type  string                 `json:"type"`
-	Other map[string]interface{} `mapstructure:",remain"`
+	Type  string         `json:"type"`
+	Other map[string]any `mapstructure:",remain" yaml:",inline"`
 }
 
 type Named struct {
-	Name  string                 `json:"name"`
-	Type  string                 `json:"type"`
-	Other map[string]interface{} `mapstructure:",remain"`
+	Name  string         `json:"name"`
+	Type  string         `json:"type"`
+	Other map[string]any `mapstructure:",remain" yaml:",inline"`
 }
 
 // Property returns the value of the named property
diff --git a/util/encode/encode.go b/util/encode/encode.go
new file mode 100644
index 000000000..88776c4d1
--- /dev/null
+++ b/util/encode/encode.go
@@ -0,0 +1,67 @@
+package encode
+
+import (
+	"fmt"
+	"math"
+	"time"
+)
+
+type encoder struct {
+	withDuration bool
+}
+
+type Encoder interface {
+	Encode(v any) any
+}
+
+type EncoderOption func(*encoder)
+
+// NewEncoder creates a new encoder with the following default conversions:
+// - float NaN/Inf are converted to nil
+// - zero time.Time are converted to nil
+// - durations are converted to seconds using WithDuration()
+// - fmt.Stringer are converted to string
+// - time.Time are converted to RFC3339 string
+func NewEncoder(opt ...EncoderOption) Encoder {
+	res := new(encoder)
+	for _, o := range opt {
+		o(res)
+	}
+	return res
+}
+
+func WithDuration() EncoderOption {
+	return func(e *encoder) {
+		e.withDuration = true
+	}
+}
+
+// Encode provides a consumer-friendly default encoding for any type
+func (e encoder) Encode(v any) any {
+	switch val := v.(type) {
+	case time.Time:
+		if val.IsZero() {
+			return nil
+		}
+		return val.Format(time.RFC3339)
+
+	case time.Duration:
+		// must be before stringer to convert to seconds instead of string
+		if e.withDuration {
+			return int(val.Seconds())
+		}
+		return val
+
+	case float64:
+		if math.IsNaN(val) || math.IsInf(val, 0) {
+			return nil
+		}
+		return math.Round(val*1e3) / 1e3
+
+	case fmt.Stringer:
+		return val.String()
+
+	default:
+		return val
+	}
+}
diff --git a/util/encode/encode_test.go b/util/encode/encode_test.go
new file mode 100644
index 000000000..74fb3eaed
--- /dev/null
+++ b/util/encode/encode_test.go
@@ -0,0 +1,18 @@
+package encode
+
+import (
+	"math"
+	"testing"
+	"time"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestEncode(t *testing.T) {
+	enc := NewEncoder(WithDuration())
+	assert.Equal(t, nil, enc.Encode(time.Time{}))
+	assert.Equal(t, nil, enc.Encode(math.NaN()))
+	assert.Equal(t, nil, enc.Encode(math.Inf(0)))
+	assert.Equal(t, 30, enc.Encode(30*time.Second))
+	assert.Equal(t, 3.142, enc.Encode(math.Pi))
+}
diff --git a/util/providerauth.go b/util/providerauth.go
index 248c0d7c5..bd44ad469 100644
--- a/util/providerauth.go
+++ b/util/providerauth.go
@@ -34,11 +34,12 @@ func (ac *AuthCollection) Publish() {
 	defer ac.mu.Unlock()
 
 	val := struct {
-		Vehicles map[string]*AuthProvider `json:"vehicles"`
+		Vehicles map[string]*AuthProvider `json:"vehicles,omitempty"`
 	}{
 		Vehicles: ac.vehicles,
 	}
 
+	// TODO registered global key name
 	ac.paramC <- Param{Key: "auth", Val: val}
 }
 
diff --git a/util/sponsor/auth.go b/util/sponsor/auth.go
index 56243153e..26bf1331d 100644
--- a/util/sponsor/auth.go
+++ b/util/sponsor/auth.go
@@ -3,6 +3,7 @@ package sponsor
 import (
 	"context"
 	"fmt"
+	"sync"
 	"time"
 
 	"github.com/evcc-io/evcc/api/proto/pb"
@@ -12,25 +13,33 @@ import (
 )
 
 var (
+	mu             sync.Mutex
 	Subject, Token string
 	ExpiresAt      time.Time
 )
 
 const (
 	unavailable = "sponsorship unavailable"
-	victron     = "victron-device"
+	victron     = "victron"
 )
 
 func IsAuthorized() bool {
+	mu.Lock()
+	defer mu.Unlock()
 	return len(Subject) > 0
 }
 
 func IsAuthorizedForApi() bool {
-	return IsAuthorized() && Token != ""
+	mu.Lock()
+	defer mu.Unlock()
+	return IsAuthorized() && Subject != unavailable && Token != ""
 }
 
 // check and set sponsorship token
 func ConfigureSponsorship(token string) error {
+	mu.Lock()
+	defer mu.Unlock()
+
 	if token == "" {
 		if sub := checkVictron(); sub != "" {
 			Subject = sub
@@ -71,3 +80,23 @@ func ConfigureSponsorship(token string) error {
 
 	return err
 }
+
+type sponsorStatus struct {
+	Name        string    `json:"name"`
+	ExpiresAt   time.Time `json:"expiresAt,omitempty"`
+	ExpiresSoon bool      `json:"expiresSoon,omitempty"`
+}
+
+// Status returns the sponsorship status
+func Status() sponsorStatus {
+	var expiresSoon bool
+	if d := time.Until(ExpiresAt); d < 30*24*time.Hour && d > 0 {
+		expiresSoon = true
+	}
+
+	return sponsorStatus{
+		Name:        Subject,
+		ExpiresAt:   ExpiresAt,
+		ExpiresSoon: expiresSoon,
+	}
+}
diff --git a/util/tee.go b/util/tee.go
index 6fb4e8736..dae3bcafa 100644
--- a/util/tee.go
+++ b/util/tee.go
@@ -32,6 +32,10 @@ func (t *Tee) add(out chan<- Param) {
 	t.recv = append(t.recv, out)
 }
 
+type redactor interface {
+	Redacted() any
+}
+
 // Run starts parameter distribution
 func (t *Tee) Run(in <-chan Param) {
 	for msg := range in {
@@ -41,6 +45,10 @@ func (t *Tee) Run(in <-chan Param) {
 			}
 		}
 
+		if val, ok := (msg.Val).(redactor); ok {
+			msg.Val = val.Redacted()
+		}
+
 		t.mu.Lock()
 		for _, recv := range t.recv {
 			recv <- msg