diff --git a/src/boot/plugins.ts b/src/boot/plugins.ts
index c070353..a6515b9 100644
--- a/src/boot/plugins.ts
+++ b/src/boot/plugins.ts
@@ -313,7 +313,7 @@ async function getBackend() {
  */
 export default boot(async ({ router, app }) => {
   const backend = await getBackend();
-  if (!backend) {
+  if (backend === null) {
     void router.push({ name: 'error' });
     return;
   }
diff --git a/src/components/Notification.vue b/src/components/Notification.vue
new file mode 100644
index 0000000..74f3bd1
--- /dev/null
+++ b/src/components/Notification.vue
@@ -0,0 +1,45 @@
+<template>
+  <q-card bordered class="row q-ma-xs q-pa-xs" style="position: relative">
+    <div class="col-12 text-weight-light">{{ dateString }}</div>
+    <div class="col-12">{{ modelValue.text }}</div>
+    <q-btn
+      round
+      dense
+      icon="close"
+      size="sm"
+      color="negative"
+      class="q-ma-xs"
+      style="position: absolute; top: 0; right: 0"
+      @click="remove"
+    />
+  </q-card>
+</template>
+
+<script lang="ts">
+import { defineComponent, PropType, computed } from 'vue';
+import { formatDateTime } from 'src/utils/datetime';
+
+export default defineComponent({
+  name: 'Notification',
+  props: {
+    modelValue: {
+      required: true,
+      type: Object as PropType<FG.Notification>,
+    },
+  },
+  emits: {
+    remove: (id: number) => !!id,
+  },
+  setup(props, { emit }) {
+    const dateString = computed(() => formatDateTime(props.modelValue.time, true, true));
+
+    function remove() {
+      emit('remove', props.modelValue.id);
+    }
+
+    return { dateString, remove };
+  },
+});
+</script>
+
+<style scoped></style>
diff --git a/src/flaschengeist.d.ts b/src/flaschengeist.d.ts
index 11cf79d..ae693ec 100644
--- a/src/flaschengeist.d.ts
+++ b/src/flaschengeist.d.ts
@@ -1,11 +1,10 @@
 declare namespace FG {
-  interface Session {
-    expires: Date;
-    token: string;
-    lifetime: number;
-    browser: string;
-    platform: string;
-    userid: string;
+  interface Notification {
+    id: number;
+    plugin: string;
+    text: string;
+    data?: unknown;
+    time: Date;
   }
   interface User {
     userid: string;
@@ -18,6 +17,14 @@ declare namespace FG {
     permissions?: Array<string>;
     avatar_url?: string;
   }
+  interface Session {
+    expires: Date;
+    token: string;
+    lifetime: number;
+    browser: string;
+    platform: string;
+    userid: string;
+  }
   type Permission = string;
   interface Role {
     id: number;
@@ -69,6 +76,7 @@ declare namespace FG {
   }
   interface Service {
     userid: string;
+    is_backup: boolean;
     value: number;
   }
   interface Drink {
diff --git a/src/layouts/MainLayout.vue b/src/layouts/MainLayout.vue
index 0cdd70a..6d0e074 100644
--- a/src/layouts/MainLayout.vue
+++ b/src/layouts/MainLayout.vue
@@ -21,6 +21,25 @@
         </q-toolbar-title>
 
         <!-- Hier kommen die Shortlinks hin -->
+        <q-btn icon="message" flat dense
+          ><q-badge color="negative" floating>{{ notifications.length }}</q-badge>
+          <q-menu style="max-height: 400px; overflow: auto">
+            <q-btn
+              v-if="noPermission"
+              label="Benachrichtigungen erlauben"
+              @click="requestPermission"
+            />
+            <template v-if="notifications.length > 0">
+              <Notification
+                v-for="(notification, index) in notifications"
+                :key="index"
+                :model-value="notification"
+                @remove="remove"
+              />
+            </template>
+            <div v-else class="q-pa-sm">Keine neuen Benachrichtigungen</div>
+          </q-menu>
+        </q-btn>
         <shortcut-link
           v-for="(shortcut, index) in shortcuts"
           :key="'shortcut' + index"
@@ -84,8 +103,9 @@
 <script lang="ts">
 import EssentialLink from 'src/components/navigation/EssentialLink.vue';
 import ShortcutLink from 'src/components/navigation/ShortcutLink.vue';
+import Notification from 'src/components/Notification.vue';
 import { Screen } from 'quasar';
-import { defineComponent, ref, inject, computed } from 'vue';
+import { defineComponent, ref, inject, computed, onBeforeMount } from 'vue';
 import { useMainStore } from 'src/store';
 import { FG_Plugin } from 'src/plugins';
 import { useRouter } from 'vue-router';
@@ -100,7 +120,7 @@ const essentials: FG_Plugin.MenuLink[] = [
 
 export default defineComponent({
   name: 'MainLayout',
-  components: { EssentialLink, ShortcutLink },
+  components: { EssentialLink, ShortcutLink, Notification },
   setup() {
     const router = useRouter();
     const mainStore = useMainStore();
@@ -108,6 +128,16 @@ export default defineComponent({
     const leftDrawer = ref(false);
     const shortcuts = flaschengeist?.shortcuts;
     const mainLinks = flaschengeist?.menuLinks;
+    const notifications = computed(() => mainStore.notifications.slice().reverse());
+    const noPermission = ref(window.Notification.permission !== 'granted');
+
+    function requestPermission() {
+      void window.Notification.requestPermission().then(
+        (p) => (noPermission.value = p !== 'granted')
+      );
+    }
+
+    onBeforeMount(() => window.setInterval(() => void mainStore.loadNotifications(), 30000));
 
     const leftDrawerOpen = computed({
       get: () => (leftDrawer.value || Screen.gt.sm ? true : false),
@@ -131,6 +161,10 @@ export default defineComponent({
       void mainStore.logout();
     }
 
+    async function remove(id: number) {
+      await mainStore.removeNotification(id);
+    }
+
     return {
       essentials,
       leftDrawerOpen,
@@ -138,6 +172,10 @@ export default defineComponent({
       leftDrawerClicker,
       logout,
       mainLinks,
+      notifications,
+      noPermission,
+      remove,
+      requestPermission,
       shortcuts,
       subLinks,
     };
diff --git a/src/plugins/schedule/components/overview/slots/JobSlot.vue b/src/plugins/schedule/components/overview/slots/JobSlot.vue
index a188487..71948e7 100644
--- a/src/plugins/schedule/components/overview/slots/JobSlot.vue
+++ b/src/plugins/schedule/components/overview/slots/JobSlot.vue
@@ -84,6 +84,7 @@ export default defineComponent({
     async function enrollForJob() {
       const newService: FG.Service = {
         userid: mainStore.currentUser.userid,
+        is_backup: false,
         value: 1,
       };
       try {
@@ -104,6 +105,7 @@ export default defineComponent({
     async function signOutFromJob() {
       const newService: FG.Service = {
         userid: mainStore.currentUser.userid,
+        is_backup: false,
         value: -1,
       };
       try {
diff --git a/src/store/index.ts b/src/store/index.ts
index 21d53f5..211e24e 100644
--- a/src/store/index.ts
+++ b/src/store/index.ts
@@ -41,6 +41,7 @@ export const useMainStore = defineStore({
   state: () => ({
     session: loadCurrentSession(),
     user: loadUser(),
+    notifications: [] as Array<FG.Notification>,
   }),
 
   getters: {
@@ -123,5 +124,33 @@ export const useMainStore = defineStore({
           response && 'status' in response ? (<AxiosResponse>response).status : false
         );
     },
+
+    async loadNotifications() {
+      const params =
+        this.notifications.length > 0
+          ? { from: this.notifications[this.notifications.length - 1].time }
+          : {};
+      const { data } = await api.get<FG.Notification[]>('/notifications', { params: params });
+      data.forEach((n) => {
+        n.time = new Date(n.time);
+        if (window.Notification.permission === 'granted')
+          new window.Notification(n.text, {
+            timestamp: n.time.getTime(),
+          });
+      });
+      this.notifications.push(...data);
+    },
+
+    async removeNotification(id: number) {
+      const idx = this.notifications.findIndex((n) => n.id === id);
+      if (idx >= 0)
+        try {
+          this.notifications.splice(idx, 1);
+          await api.delete(`/notifications/${id}`);
+        } catch (error) {
+          if (this.notifications.length > idx)
+            this.notifications.splice(idx, this.notifications.length - idx - 1);
+        }
+    },
   },
 });