diff --git a/.gitignore b/.gitignore
index 8b14dd99..8d8cf763 100644
--- a/.gitignore
+++ b/.gitignore
@@ -6,3 +6,4 @@
 .vscode/settings.json
 platformio-device-monitor*.log
 platformio_override.ini
+.DS_Store
diff --git a/README.md b/README.md
index 26bfb437..3655c435 100644
--- a/README.md
+++ b/README.md
@@ -377,7 +377,14 @@ A documentation of the Web API can be found here: [Web-API Documentation](docs/W
 * <https://www.thingiverse.com/thing:5661780>
 * <https://www.thingiverse.com/thing:5632374>
 * <https://www.thingiverse.com/thing:5852233>
+* <https://www.printables.com/model/377994-opendtu-pcb-box-for-the-wider-board>
+* <https://www.printables.com/model/376840-esp32-ahoy-opendtu-pcb-housing>
 
+## Available layouts for printed circuit boards
+* [BreakoutBoard - sample printed circuit board for OpenDTU and Ahoy](https://github.com/dokuhn/openDTU-BreakoutBoard)
+* [Board for OpenDTU with Display](https://github.com/SteffMUC/openDTU_wDisplay2)
+* [OpenDTU PCB mit Display](https://github.com/turrican944/OpenDTU-PCB)
+* [PCB for OpenDTU in Cable Branchbox](https://github.com/plewka/ESP-Solar_OpenDTU)
 
 ## Building
 * Building the WebApp
@@ -411,4 +418,3 @@ A documentation of the Web API can be found here: [Web-API Documentation](docs/W
 - [Ahoy](https://github.com/grindylow/ahoy)
 - [DTU Simulator](https://github.com/Ziyatoe/DTUsimMI1x00-Hoymiles)
 - [OpenDTU extended to talk to Victrons MPPT battery chargers (Ve.Direct)](https://github.com/helgeerbe/OpenDTU_VeDirect)
-- [BreakoutBoard - sample printed circuit board for OpenDTU and Ahoy](https://github.com/dokuhn/openDTU-BreakoutBoard)
diff --git a/docs/Web-API.md b/docs/Web-API.md
index f772b05c..dbdd8a2a 100644
--- a/docs/Web-API.md
+++ b/docs/Web-API.md
@@ -9,7 +9,9 @@ may be incomplete
 | -------- | --- | -- |
 | Get      | yes | /api/config/get |
 | Post     | yes | /api/config/delete |
+| Get      | yes | /api/config/list |
 | Post     | yes | /api/config/upload |
+| Get+Post | yes | /api/device/config |
 | Get      | no  | /api/devinfo/status |
 | Get+Post | yes | /api/dtu/config |
 | Get      | no  | /api/eventlog/status?inv=inverter-serialnumber |
@@ -21,6 +23,7 @@ may be incomplete
 | Post     | yes | /api/limit/config |
 | Get      | no  | /api/limit/status |
 | Get      | no  | /api/livedata/status |
+| Post     | yes | /api/maintenance/reboot |
 | Get+Post | yes | /api/mqtt/config |
 | Get      | no  | /api/mqtt/status |
 | Get+Post | yes | /api/network/config |
@@ -30,7 +33,9 @@ may be incomplete
 | Get+Post | yes | /api/ntp/time |
 | Get      | no  | /api/power/status |
 | Post     | yes | /api/power/config |
-| Get+Post | yes | /api/security/password |
+| Get      | no  | /api/prometheus/metrics |
+| Get+Post | yes | /api/security/config |
+| Get      | yes | /api/security/authenticate |
 | Get      | no  | /api/system/status |
 
 
@@ -46,6 +51,7 @@ may be incomplete
 - Other API calls use e.g. `/api/limit/status` to GET data and a different URL `/api/limit/config` to POST data.
 - If you want to investigate the web api communication, a good tool is [Postman](https://www.postman.com/)
 - Settings API require username and password provided with Basic Authentication credentials
+- If you disable the readonly access to the web API, every endpoint requires authentication
 
 
 ### Get information
diff --git a/lib/ResetReason/src/ResetReason.cpp b/lib/ResetReason/src/ResetReason.cpp
index 5e664145..b3ceea5d 100644
--- a/lib/ResetReason/src/ResetReason.cpp
+++ b/lib/ResetReason/src/ResetReason.cpp
@@ -34,7 +34,7 @@ String ResetReasonClass::get_reset_reason_verbose(uint8_t cpu_id)
     case 3:
         reason_str = F("Software reset digital core");
         break;
-#if !defined(CONFIG_IDF_TARGET_ESP32C3) && !defined(CONFIG_IDF_TARGET_ESP32S3)
+#if !defined(CONFIG_IDF_TARGET_ESP32C3) && !defined(CONFIG_IDF_TARGET_ESP32S3) && !defined(CONFIG_IDF_TARGET_ESP32S2)
     case 4:
         reason_str = F("Legacy watch dog reset digital core");
         break;
@@ -42,7 +42,7 @@ String ResetReasonClass::get_reset_reason_verbose(uint8_t cpu_id)
     case 5:
         reason_str = F("Deep Sleep reset digital core");
         break;
-#if !defined(CONFIG_IDF_TARGET_ESP32C3) && !defined(CONFIG_IDF_TARGET_ESP32S3)
+#if !defined(CONFIG_IDF_TARGET_ESP32C3) && !defined(CONFIG_IDF_TARGET_ESP32S3) && !defined(CONFIG_IDF_TARGET_ESP32S2)
     case 6:
         reason_str = F("Reset by SLC module, reset digital core");
         break;
@@ -68,7 +68,7 @@ String ResetReasonClass::get_reset_reason_verbose(uint8_t cpu_id)
     case 13:
         reason_str = F("RTC Watch dog Reset CPU");
         break;
-#if !defined(CONFIG_IDF_TARGET_ESP32C3) && !defined(CONFIG_IDF_TARGET_ESP32S3)
+#if !defined(CONFIG_IDF_TARGET_ESP32C3) && !defined(CONFIG_IDF_TARGET_ESP32S3) && !defined(CONFIG_IDF_TARGET_ESP32S2)
     case 14:
         reason_str = F("for APP CPU, reset by PRO CPU");
         break;
@@ -100,7 +100,7 @@ String ResetReasonClass::get_reset_reason_short(uint8_t cpu_id)
     case 3:
         reason_str = F("SW_RESET");
         break;
-#if !defined(CONFIG_IDF_TARGET_ESP32C3) && !defined(CONFIG_IDF_TARGET_ESP32S3)
+#if !defined(CONFIG_IDF_TARGET_ESP32C3) && !defined(CONFIG_IDF_TARGET_ESP32S3) && !defined(CONFIG_IDF_TARGET_ESP32S2)
     case 4:
         reason_str = F("OWDT_RESET");
         break;
@@ -108,7 +108,7 @@ String ResetReasonClass::get_reset_reason_short(uint8_t cpu_id)
     case 5:
         reason_str = F("DEEPSLEEP_RESET");
         break;
-#if !defined(CONFIG_IDF_TARGET_ESP32C3) && !defined(CONFIG_IDF_TARGET_ESP32S3)
+#if !defined(CONFIG_IDF_TARGET_ESP32C3) && !defined(CONFIG_IDF_TARGET_ESP32S3) && !defined(CONFIG_IDF_TARGET_ESP32S2)
     case 6:
         reason_str = F("SDIO_RESET");
         break;
@@ -134,7 +134,7 @@ String ResetReasonClass::get_reset_reason_short(uint8_t cpu_id)
     case 13:
         reason_str = F("RTCWDT_CPU_RESET");
         break;
-#if !defined(CONFIG_IDF_TARGET_ESP32C3) && !defined(CONFIG_IDF_TARGET_ESP32S3)
+#if !defined(CONFIG_IDF_TARGET_ESP32C3) && !defined(CONFIG_IDF_TARGET_ESP32S3) && !defined(CONFIG_IDF_TARGET_ESP32S2)
     case 14:
         reason_str = F("EXT_CPU_RESET");
         break;
diff --git a/platformio.ini b/platformio.ini
index 5ccc4346..f1ef5b6a 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -153,3 +153,13 @@ build_flags = ${env.build_flags}
     -DHOYMILES_PIN_IRQ=16
     -DHOYMILES_PIN_CE=17
     -DHOYMILES_PIN_CS=5
+
+[env:lolin_s2_mini]
+board = lolin_s2_mini
+build_flags = ${env.build_flags}
+    -DHOYMILES_PIN_MISO=13
+    -DHOYMILES_PIN_MOSI=11
+    -DHOYMILES_PIN_SCLK=12
+    -DHOYMILES_PIN_CS=10
+    -DHOYMILES_PIN_IRQ=4
+    -DHOYMILES_PIN_CE=5
\ No newline at end of file
diff --git a/webapp/package.json b/webapp/package.json
index f09ffa31..538e91a7 100644
--- a/webapp/package.json
+++ b/webapp/package.json
@@ -12,7 +12,7 @@
   },
   "dependencies": {
     "@popperjs/core": "^2.11.6",
-    "bootstrap": "^5.2.3",
+    "bootstrap": "^5.3.0-alpha1",
     "bootstrap-icons-vue": "^1.8.1",
     "mitt": "^3.0.0",
     "spark-md5": "^3.0.2",
@@ -24,7 +24,7 @@
     "@intlify/unplugin-vue-i18n": "^0.8.2",
     "@rushstack/eslint-patch": "^1.2.0",
     "@types/bootstrap": "^5.2.6",
-    "@types/node": "^18.14.2",
+    "@types/node": "^18.14.6",
     "@types/spark-md5": "^3.0.2",
     "@vitejs/plugin-vue": "^4.0.0",
     "@vue/eslint-config-typescript": "^11.0.2",
diff --git a/webapp/src/components/NavBar.vue b/webapp/src/components/NavBar.vue
index 82466086..033e213b 100644
--- a/webapp/src/components/NavBar.vue
+++ b/webapp/src/components/NavBar.vue
@@ -1,5 +1,5 @@
 <template>
-    <nav class="navbar navbar-expand-md navbar-dark fixed-top bg-dark">
+    <nav class="navbar navbar-expand-md fixed-top bg-body-tertiary" data-bs-theme="dark">
         <div class="container-fluid">
             <router-link @click="onClick" class="navbar-brand" to="/">
                 <span v-if="isXmas" class="text-success">
@@ -107,11 +107,14 @@
                         <router-link @click="onClick" class="nav-link" to="/about">{{ $t('menu.About') }}</router-link>
                     </li>
                 </ul>
-                <form class="d-flex" role="search">
-                    <LocaleSwitcher class="me-2" />
-                    <button v-if="isLogged" class="btn btn-outline-danger" @click="signout">{{ $t('menu.Logout') }}</button>
-                    <button v-if="!isLogged" class="btn btn-outline-success" @click="signin">{{ $t('menu.Login') }}</button>
-                </form>
+                <ul class="navbar-nav flex-row flex-wrap ms-md-auto">
+                    <ThemeSwitcher class="me-2" />
+                    <form class="d-flex" role="search">
+                        <LocaleSwitcher class="me-2" />
+                        <button v-if="isLogged" class="btn btn-outline-danger" @click="signout">{{ $t('menu.Logout') }}</button>
+                        <button v-if="!isLogged" class="btn btn-outline-success" @click="signin">{{ $t('menu.Login') }}</button>
+                    </form>
+                </ul>
             </div>
         </div>
     </nav>
@@ -122,6 +125,7 @@ import { isLoggedIn, logout } from '@/utils/authentication';
 import { BIconEgg, BIconSun, BIconTree } from 'bootstrap-icons-vue';
 import { defineComponent } from 'vue';
 import LocaleSwitcher from './LocaleSwitcher.vue';
+import ThemeSwitcher from './ThemeSwitcher.vue';
 
 export default defineComponent({
     components: {
@@ -129,6 +133,7 @@ export default defineComponent({
         BIconSun,
         BIconTree,
         LocaleSwitcher,
+        ThemeSwitcher,
     },
     data() {
         return {
diff --git a/webapp/src/components/ThemeSwitcher.vue b/webapp/src/components/ThemeSwitcher.vue
new file mode 100644
index 00000000..2da88434
--- /dev/null
+++ b/webapp/src/components/ThemeSwitcher.vue
@@ -0,0 +1,106 @@
+<template>
+    <li class="nav-item dropdown">
+        <button class="btn btn-link nav-link py-2 px-0 px-lg-2 dropdown-toggle d-flex align-items-center" id="bd-theme"
+            type="button" aria-expanded="false" data-bs-toggle="dropdown" data-bs-display="static"
+            aria-label="Toggle theme (auto)">
+            <BIconCircleHalf class="bi my-1 theme-icon-active" />
+        </button>
+        <ul class="dropdown-menu dropdown-menu-end">
+            <li>
+                <button type="button" class="dropdown-item d-flex align-items-center" data-bs-theme-value="light"
+                    aria-pressed="false">
+                    <BIconSunFill class="bi me-2 opacity-50 theme-icon" />
+                    {{ $t('localeswitcher.Light') }}
+                </button>
+            </li>
+            <li>
+                <button type="button" class="dropdown-item d-flex align-items-center" data-bs-theme-value="dark"
+                    aria-pressed="false">
+                    <BIconMoonStarsFill class="bi me-2 opacity-50 theme-icon" />
+                    {{ $t('localeswitcher.Dark') }}
+                </button>
+            </li>
+            <li>
+                <button type="button" class="dropdown-item d-flex align-items-center active" data-bs-theme-value="auto"
+                    aria-pressed="true">
+                    <BIconCircleHalf class="bi me-2 opacity-50 theme-icon" />
+                    {{ $t('localeswitcher.Auto') }}
+                </button>
+            </li>
+        </ul>
+    </li>
+</template>
+
+<script lang="ts">
+import { defineComponent } from 'vue';
+import {
+    BIconCircleHalf,
+    BIconSunFill,
+    BIconMoonStarsFill,
+} from 'bootstrap-icons-vue';
+
+export default defineComponent({
+    name: "ThemeSwitcher",
+    components: {
+        BIconCircleHalf,
+        BIconSunFill,
+        BIconMoonStarsFill,
+    },
+    data() {
+        return {
+            storedTheme: 'auto',
+        };
+    },
+    methods: {
+        getPreferredTheme() {
+            if (this.storedTheme) {
+                return this.storedTheme;
+            }
+            return window.matchMedia('(prefers-color-scheme: dark)').matches ? 'dark' : 'light';
+        },
+        setTheme(theme: string) {
+            if (theme === 'auto' && window.matchMedia('(prefers-color-scheme: dark)').matches) {
+                document.documentElement.setAttribute('data-bs-theme', 'dark');
+            } else {
+                document.documentElement.setAttribute('data-bs-theme', theme);
+            }
+        },
+        showActiveTheme(theme: string) {
+            const activeThemeIcon = document.querySelector('.theme-icon-active');
+            const btnToActive = document.querySelector(`[data-bs-theme-value="${theme}"]`);
+            const svgOfActiveBtn = btnToActive?.querySelector('.theme-icon');
+
+            document.querySelectorAll('[data-bs-theme-value]').forEach(element => {
+                element.classList.remove('active');
+            })
+
+            btnToActive?.classList.add('active');
+
+            if (svgOfActiveBtn) {
+                activeThemeIcon?.replaceChildren('*', svgOfActiveBtn?.cloneNode(true));
+            }
+        },
+    },
+    mounted() {
+        this.storedTheme = localStorage.getItem('theme') || 'auto';
+        this.setTheme(this.getPreferredTheme());
+        this.showActiveTheme(this.getPreferredTheme());
+
+        window.matchMedia('(prefers-color-scheme: dark)').addEventListener('change', () => {
+            if (this.storedTheme !== 'light' && this.storedTheme !== 'dark') {
+                this.setTheme(this.getPreferredTheme());
+            }
+        });
+
+        document.querySelectorAll('[data-bs-theme-value]')
+            .forEach(toggle => {
+                toggle.addEventListener('click', () => {
+                    const theme = toggle.getAttribute('data-bs-theme-value') || 'auto';
+                    localStorage.setItem('theme', theme);
+                    this.setTheme(theme);
+                    this.showActiveTheme(theme);
+                })
+            });
+    },
+});
+</script>
\ No newline at end of file
diff --git a/webapp/src/locales/de.json b/webapp/src/locales/de.json
index 771637ae..20189954 100644
--- a/webapp/src/locales/de.json
+++ b/webapp/src/locales/de.json
@@ -28,6 +28,11 @@
     "base": {
         "Loading": "Lade..."
     },
+    "localeswitcher": {
+        "Dark": "Dunkel",
+        "Light": "Hell",
+        "Auto": "Automatisch"
+    },
     "apiresponse": {
         "1001": "Einstellungen gespeichert!",
         "1002": "Keine Werte gefunden!",
diff --git a/webapp/src/locales/en.json b/webapp/src/locales/en.json
index 88a7e8f3..487cca13 100644
--- a/webapp/src/locales/en.json
+++ b/webapp/src/locales/en.json
@@ -28,6 +28,11 @@
     "base": {
         "Loading": "Loading..."
     },
+    "localeswitcher": {
+        "Dark": "Dark",
+        "Light": "Light",
+        "Auto": "Auto"
+    },
     "apiresponse": {
         "1001": "Settings saved!",
         "1002": "No values found!",
diff --git a/webapp/src/locales/fr.json b/webapp/src/locales/fr.json
index 11fbbcd4..415d74a7 100644
--- a/webapp/src/locales/fr.json
+++ b/webapp/src/locales/fr.json
@@ -27,6 +27,11 @@
     "base": {
         "Loading": "Chargement..."
     },
+    "localeswitcher": {
+        "Dark": "Dark",
+        "Light": "Light",
+        "Auto": "Auto"
+    },
     "apiresponse": {
         "1001": "Paramètres enregistrés !",
         "1002": "Aucune valeur trouvée !",
diff --git a/webapp/yarn.lock b/webapp/yarn.lock
index 2ebfc642..ab30769d 100644
--- a/webapp/yarn.lock
+++ b/webapp/yarn.lock
@@ -332,10 +332,10 @@
   resolved "https://registry.yarnpkg.com/@types/json-schema/-/json-schema-7.0.11.tgz#d421b6c527a3037f7c84433fd2c4229e016863d3"
   integrity sha512-wOuvG1SN4Us4rez+tylwwwCV1psiNVOkJeM3AUWUNWg/jDQY2+HE/444y5gc+jBmRqASOm2Oeh5c1axHobwRKQ==
 
-"@types/node@^18.14.2":
-  version "18.14.2"
-  resolved "https://registry.yarnpkg.com/@types/node/-/node-18.14.2.tgz#c076ed1d7b6095078ad3cf21dfeea951842778b1"
-  integrity sha512-1uEQxww3DaghA0RxqHx0O0ppVlo43pJhepY51OxuQIKHpjbnYLA7vcdwioNPzIqmC2u3I/dmylcqjlh0e7AyUA==
+"@types/node@^18.14.6":
+  version "18.14.6"
+  resolved "https://registry.yarnpkg.com/@types/node/-/node-18.14.6.tgz#ae1973dd2b1eeb1825695bb11ebfb746d27e3e93"
+  integrity sha512-93+VvleD3mXwlLI/xASjw0FzKcwzl3OdTCzm1LaRfqgS21gfFtK3zDXM5Op9TeeMsJVOaJ2VRDpT9q4Y3d0AvA==
 
 "@types/spark-md5@^3.0.2":
   version "3.0.2"
@@ -701,10 +701,10 @@ bootstrap-icons-vue@^1.8.1:
   resolved "https://registry.yarnpkg.com/bootstrap-icons-vue/-/bootstrap-icons-vue-1.8.1.tgz#ce4a0c1f6efe41dabcc1341f2cb191d307fbaf50"
   integrity sha512-uItRULwQz0epETi9x/RBEqfjHmTAmkIIczpH1R6L9T6yyaaijk0826PzTWnWNm15tw66JT/8GNuXjB0HI5PHLw==
 
-bootstrap@^5.2.3:
-  version "5.2.3"
-  resolved "https://registry.yarnpkg.com/bootstrap/-/bootstrap-5.2.3.tgz#54739f4414de121b9785c5da3c87b37ff008322b"
-  integrity sha512-cEKPM+fwb3cT8NzQZYEu4HilJ3anCrWqh3CHAok1p9jXqMPsPTBhU25fBckEJHJ/p+tTxTFTsFQGM+gaHpi3QQ==
+bootstrap@^5.3.0-alpha1:
+  version "5.3.0-alpha1"
+  resolved "https://registry.yarnpkg.com/bootstrap/-/bootstrap-5.3.0-alpha1.tgz#380629c4367893f02f7879a01ea3ae0f94e2e70e"
+  integrity sha512-ABZpKK4ObS3kKlIqH+ZVDqoy5t/bhFG0oHTAzByUdon7YIom0lpCeTqRniDzJmbtcWkNe800VVPBiJgxSYTYew==
 
 brace-expansion@^1.1.7:
   version "1.1.11"