diff --git a/bbconf/bb_todo-datamodel.sql b/bbconf/bb_todo-datamodel.sql
index b2ddeb9..46a3ab0 100644
--- a/bbconf/bb_todo-datamodel.sql
+++ b/bbconf/bb_todo-datamodel.sql
@@ -1,5 +1,5 @@
 --
--- Generated by basebox compiler (bbc) version 0.1.0-beta.23 at 2023-11-01 03:18:33+01:00
+-- Generated by basebox compiler (bbc) version 0.1.0-beta.23 at 2023-11-01 10:35:59+01:00
 --
 CREATE EXTENSION IF NOT EXISTS pgcrypto; 
 
@@ -23,6 +23,12 @@ CREATE TABLE "User" (
   "name" VARCHAR 
 );
 
+ALTER TABLE "List" ADD COLUMN ".ownerId" VARCHAR NOT NULL;
+
+ALTER TABLE "Task" ADD COLUMN ".ownerId" VARCHAR NOT NULL;
+
+ALTER TABLE "User" ADD COLUMN ".ownerId" VARCHAR NOT NULL;
+
 ALTER TABLE "List" ADD PRIMARY KEY ("id");
 
 ALTER TABLE "Task" ADD PRIMARY KEY ("id");
@@ -37,9 +43,3 @@ ALTER TABLE "Task" ADD CONSTRAINT fk_task_3 FOREIGN KEY ("list_id") REFERENCES "
 
 ALTER TABLE "User" ADD CONSTRAINT uq_user_4 UNIQUE (".ownerId");
 
-ALTER TABLE "List" ADD COLUMN ".ownerId" VARCHAR NOT NULL;
-
-ALTER TABLE "Task" ADD COLUMN ".ownerId" VARCHAR NOT NULL;
-
-ALTER TABLE "User" ADD COLUMN ".ownerId" VARCHAR NOT NULL;
-
diff --git a/bbconf/bb_todo-resolver.toml b/bbconf/bb_todo-resolver.toml
index 45335b6..3d7d509 100644
--- a/bbconf/bb_todo-resolver.toml
+++ b/bbconf/bb_todo-resolver.toml
@@ -1,6 +1,31 @@
 # 
-# Generated by bbc (basebox compiler) version 0.1.0-beta.23 at 2023-11-01 03:18:33+01:00
+# Generated by bbc (basebox compiler) version 0.1.0-beta.23 at 2023-11-01 10:35:59+01:00
 #
+[resolvers._bb_user_User]
+operation_name = "_bb_user_User"
+
+[resolvers._bb_user_User.resolver.InternalQueryBuilder]
+command_type = "SQLSelect"
+
+[resolvers._bb_user_User.resolver.InternalQueryBuilder.command]
+table = "User"
+command_type = "SQLSelect"
+modify_values = []
+nested_modify_tables = []
+aggregate_result = true
+
+[[resolvers._bb_user_User.resolver.InternalQueryBuilder.command.columns]]
+
+[resolvers._bb_user_User.resolver.InternalQueryBuilder.command.columns.Column]
+table = "User"
+column = "username"
+
+[[resolvers._bb_user_User.resolver.InternalQueryBuilder.command.where_clauses]]
+table = "User"
+column = ".ownerId"
+condition_str = "= $1"
+index = ""
+
 [resolvers.updateTask]
 operation_name = "updateTask"
 
@@ -36,45 +61,39 @@ column = "id"
 condition_str = "= '$id'"
 index = ""
 
-[resolvers.getUser]
-operation_name = "getUser"
+[resolvers.createTask]
+operation_name = "createTask"
 
-[resolvers.getUser.resolver.QueryBuilder]
-command_type = "SQLSelect"
+[resolvers.createTask.resolver.QueryBuilder]
+command_type = "SQLInsert"
 
-[resolvers.getUser.resolver.QueryBuilder.command]
-table = "User"
-command_type = "SQLSelect"
-columns = []
-modify_values = []
-nested_modify_tables = []
-aggregate_result = true
-
-[[resolvers.getUser.resolver.QueryBuilder.command.where_clauses]]
-table = "User"
-column = "username"
-condition_str = "= '$username'"
-index = ""
-
-[resolvers.deleteTask]
-operation_name = "deleteTask"
-
-[resolvers.deleteTask.resolver.QueryBuilder]
-command_type = "SQLDelete"
-
-[resolvers.deleteTask.resolver.QueryBuilder.command]
+[resolvers.createTask.resolver.QueryBuilder.command]
 table = "Task"
 command_type = "SQLSelect"
 columns = []
-modify_values = []
 nested_modify_tables = []
+where_clauses = []
 aggregate_result = true
 
-[[resolvers.deleteTask.resolver.QueryBuilder.command.where_clauses]]
-table = "Task"
-column = "id"
-condition_str = "= '$id'"
-index = ""
+[[resolvers.createTask.resolver.QueryBuilder.command.modify_values]]
+column = "title"
+value = "'$title'"
+
+[[resolvers.createTask.resolver.QueryBuilder.command.modify_values]]
+column = "description"
+value = "'$description'"
+
+[[resolvers.createTask.resolver.QueryBuilder.command.modify_values]]
+column = "completed"
+value = "'$completed'"
+
+[[resolvers.createTask.resolver.QueryBuilder.command.modify_values]]
+column = "list_id"
+value = "'$list.$id'"
+
+[[resolvers.createTask.resolver.QueryBuilder.command.modify_values]]
+column = "user_username"
+value = "'$user.$username'"
 
 [resolvers.createUser]
 operation_name = "createUser"
@@ -98,6 +117,46 @@ value = "'$username'"
 column = "name"
 value = "'$name'"
 
+[resolvers.deleteTask]
+operation_name = "deleteTask"
+
+[resolvers.deleteTask.resolver.QueryBuilder]
+command_type = "SQLDelete"
+
+[resolvers.deleteTask.resolver.QueryBuilder.command]
+table = "Task"
+command_type = "SQLSelect"
+columns = []
+modify_values = []
+nested_modify_tables = []
+aggregate_result = true
+
+[[resolvers.deleteTask.resolver.QueryBuilder.command.where_clauses]]
+table = "Task"
+column = "id"
+condition_str = "= '$id'"
+index = ""
+
+[resolvers.getUser]
+operation_name = "getUser"
+
+[resolvers.getUser.resolver.QueryBuilder]
+command_type = "SQLSelect"
+
+[resolvers.getUser.resolver.QueryBuilder.command]
+table = "User"
+command_type = "SQLSelect"
+columns = []
+modify_values = []
+nested_modify_tables = []
+aggregate_result = true
+
+[[resolvers.getUser.resolver.QueryBuilder.command.where_clauses]]
+table = "User"
+column = "username"
+condition_str = "= '$username'"
+index = ""
+
 [resolvers.createList]
 operation_name = "createList"
 
@@ -143,65 +202,6 @@ column = "id"
 condition_str = "= '$id'"
 index = ""
 
-[resolvers._bb_user_User]
-operation_name = "_bb_user_User"
-
-[resolvers._bb_user_User.resolver.InternalQueryBuilder]
-command_type = "SQLSelect"
-
-[resolvers._bb_user_User.resolver.InternalQueryBuilder.command]
-table = "User"
-command_type = "SQLSelect"
-modify_values = []
-nested_modify_tables = []
-aggregate_result = true
-
-[[resolvers._bb_user_User.resolver.InternalQueryBuilder.command.columns]]
-
-[resolvers._bb_user_User.resolver.InternalQueryBuilder.command.columns.Column]
-table = "User"
-column = "username"
-
-[[resolvers._bb_user_User.resolver.InternalQueryBuilder.command.where_clauses]]
-table = "User"
-column = ".ownerId"
-condition_str = "= $1"
-index = ""
-
-[resolvers.createTask]
-operation_name = "createTask"
-
-[resolvers.createTask.resolver.QueryBuilder]
-command_type = "SQLInsert"
-
-[resolvers.createTask.resolver.QueryBuilder.command]
-table = "Task"
-command_type = "SQLSelect"
-columns = []
-nested_modify_tables = []
-where_clauses = []
-aggregate_result = true
-
-[[resolvers.createTask.resolver.QueryBuilder.command.modify_values]]
-column = "title"
-value = "'$title'"
-
-[[resolvers.createTask.resolver.QueryBuilder.command.modify_values]]
-column = "description"
-value = "'$description'"
-
-[[resolvers.createTask.resolver.QueryBuilder.command.modify_values]]
-column = "completed"
-value = "'$completed'"
-
-[[resolvers.createTask.resolver.QueryBuilder.command.modify_values]]
-column = "list_id"
-value = "'$list.$id'"
-
-[[resolvers.createTask.resolver.QueryBuilder.command.modify_values]]
-column = "user_username"
-value = "'$user.$username'"
-
 [resolvers.deleteList]
 operation_name = "deleteList"
 
diff --git a/src/App.vue b/src/App.vue
index 2e77ce7..3dca8e3 100644
--- a/src/App.vue
+++ b/src/App.vue
@@ -3,13 +3,14 @@ import { RouterLink, RouterView } from 'vue-router'
 import { store, loggedIn } from './store.js'
 import {clearSession} from "./store.js";
 import {Modal} from "bootstrap";
+import { getOidcUserManager } from './util/oidc';
 
 /**
  * Logout the user.
  */
 function logOut() {
   clearSession();
-  location.href = "/";
+  getOidcUserManager().signoutRedirect();
 }
 
 /**
@@ -48,7 +49,7 @@ function dismissError() {
           <ul class="navbar-nav mb-2 mb-lg-0">
             <li class="navbar-text">Hello, {{ store.userDisplayName }}!</li>
             <li class="nav-item ms-2">
-              <button class="nav-link btn btn-sm btn-secondary" @click="$oidc.signOut()">Logout</button>
+              <button class="nav-link btn btn-sm btn-secondary" @click="logOut()">Logout</button>
             </li>
           </ul>
         </div>
diff --git a/src/components/Lists.vue b/src/components/Lists.vue
index 4e75943..ff79a14 100644
--- a/src/components/Lists.vue
+++ b/src/components/Lists.vue
@@ -53,9 +53,9 @@
 </template>
 
 <script>
-import {gqlQuery} from "../util/net";
-import {showError, store} from "../store";
-import {showModal} from "../util/misc";
+import { gqlRequest } from "../util/net";
+import { showError, store } from "../store";
+import { showModal } from "../util/misc";
 
 const NEW_LIST_ID = "new-list-id";
 
@@ -96,12 +96,17 @@ export default {
         }`;
       }
       /* send query */
-      gqlQuery(
+      gqlRequest(
         gql
       ).then(data => {
         /* Save the list's id in case it was just created */
-        if (!list.id) {
+        if (list.id === NEW_LIST_ID) {
           list.id = data.createList.id;
+          /* Update list id in data store */
+          const idx = store.lists.findIndex(item => item.id === NEW_LIST_ID);
+          if (idx !== -1) {
+            store.lists[idx].id = list.id;
+          }
         }
       }).catch(e => {
         const errMsg = `Failed to save list: ${e}`;
@@ -122,7 +127,7 @@ export default {
           return;
         }
         /* List must be also deleted from the server */
-        gqlQuery(`mutation {
+        gqlRequest(`mutation {
           deleteList(id: "${list.id}") {
             id
           }
diff --git a/src/components/Todo.vue b/src/components/Todo.vue
index 167bc31..d980155 100644
--- a/src/components/Todo.vue
+++ b/src/components/Todo.vue
@@ -73,9 +73,9 @@
 </template>
 
 <script>
-import {gqlQuery} from "../util/net";
-import {showError, store} from "../store";
-import {showModal} from "../util/misc";
+import { gqlRequest } from "../util/net";
+import { removeTask, showError, store } from "../store";
+import { showModal } from "../util/misc";
 
 const NEW_TASK_ID = "new-task-id";
 
@@ -137,7 +137,7 @@ export default {
       }
 
       /* send query */
-      gqlQuery(
+      gqlRequest(
         request
       ).then(data => {
         /* Save the task's id in case it was just created */
@@ -158,18 +158,24 @@ export default {
     deleteTask(task) {
       if (task.id !== NEW_TASK_ID) {
         /* Task must be also deleted from the server */
-        gqlQuery(`mutation {
+        gqlRequest(`mutation {
           deleteTask(id: "${task.id}") {
             id
           }
-        }`);
+        }`).then(data => {
+          console.info(`Deleted task '${task.title}' with id ${task.id}`);
+          /* Also remove task from the store */
+          removeTask(task);
+        }).catch(e => {
+          const errMsg = `Failed to delete task: ${e}`;
+          console.error(errMsg);
+          showError(errMsg);
+        });
+      } else {
+        /* Just delete task from the store */
+        removeTask(task);
       }
 
-      /* delete task from the store. */
-      const idx = store.tasks.findIndex(item => item.id === task.id);
-      if (idx !== -1) {
-        store.tasks.splice(idx, 1);
-      }
 
     },
 
diff --git a/src/components/auth/Callback.vue b/src/components/auth/Callback.vue
deleted file mode 100644
index acd1cc5..0000000
--- a/src/components/auth/Callback.vue
+++ /dev/null
@@ -1,12 +0,0 @@
-<template>
-
-</template>
-
-<script setup>
-import { onMounted } from 'vue';
-
-onMounted(() => {
-  console.log('Component is mounted!');
-});
-
-</script>
\ No newline at end of file
diff --git a/src/components/auth/Login.vue b/src/components/auth/Login.vue
deleted file mode 100644
index e69de29..0000000
diff --git a/src/router/index.js b/src/router/index.js
index 1b5b3f1..9e632ca 100644
--- a/src/router/index.js
+++ b/src/router/index.js
@@ -5,7 +5,7 @@
  * https://basebox.io
  */
 
-import {loggedIn, showError, store} from "../store";
+import {loggedIn, showError, storeInit } from "../store";
 import { createRouter, createWebHistory } from 'vue-router'
 import HomeView from '../views/HomeView.vue'
 import { objectToQueryString } from "../util/net";
@@ -39,7 +39,7 @@ router.beforeEach(async (to, from) => {
 
   /* catch OIDC callback */
   if (to.path === callbackPath) {
-    console.info("OIDC: got signin callback request to ", to);
+    console.info("OIDC: got OIDC callback request to ", to);
     const userMgr = getOidcUserManager();
     try {
       const user = await userMgr.signinRedirectCallback(location.origin + to.fullPath);
@@ -47,6 +47,7 @@ router.beforeEach(async (to, from) => {
       storeInit(user);
     } catch (err) {
       console.error("OIDC: Error handling signin callback: ", err);   
+      showError("The login process failed: " + err);
     }
     /* redirect to home page */
     return {name: 'home'};
diff --git a/src/store.js b/src/store.js
index c51c011..368f85f 100644
--- a/src/store.js
+++ b/src/store.js
@@ -5,7 +5,7 @@
  * https://basebox.io
  */
 import { reactive } from 'vue'
-import {gqlQuery} from "./util/net";
+import {gqlRequest} from "./util/net";
 
 export const store = reactive({
 
@@ -60,6 +60,18 @@ export function clearError() {
   store.fatalError = "";
 }
 
+/**
+ * Remove a task from the store.
+ * 
+ * This does not remove it from the database/server!
+ */
+export function removeTask(task) {
+  const idx = store.tasks.findIndex(item => item.id === task.id);
+  if (idx !== -1) {
+    store.tasks.splice(idx, 1);
+  }
+}
+
 /**
  * Initialize data store and database.
  *
@@ -88,7 +100,7 @@ export async function storeInit(user) {
    */
   try {
     console.info("NOTE: If next request fails, it is probably because the user already exists. In this case, the error is ignored.");
-    await gqlQuery(`mutation {
+    await gqlRequest(`mutation {
       createUser(
         username: "${store.userId}",
         name: "${store.userDisplayName}"
@@ -108,7 +120,7 @@ export async function storeInit(user) {
   }
 
   /* Load user info, lists and todos. */
-  gqlQuery(`query {
+  gqlRequest(`query {
     getUser(username: "${store.userId}") {
       name
       lists {
@@ -131,14 +143,18 @@ export async function storeInit(user) {
     /* create default list if necessary */
     if (store.lists.length === 0) {
       console.info("No lists found for current user; creating default list.");
-      gqlQuery(`mutation {
+      gqlRequest(`mutation {
         createList(
           title: "Default",
           user: { username: "${store.userId}" }
         ) {
           title
+          id
         }
-      }`);
+      }`).then(data => {
+        /* Save new default list in store */
+        store.lists.push(data.createList);
+      });
     }
 
     /* fix for basebox bug: task.list is returned as an array of List objects, where we expect just a single object */
diff --git a/src/util/net.js b/src/util/net.js
index eb70997..6cb7f49 100644
--- a/src/util/net.js
+++ b/src/util/net.js
@@ -8,7 +8,7 @@
 import {clearSession, store} from "../store";
 
 /**
- * GqlError - custom error thrown by the gqlQuery function.
+ * GqlError - custom error thrown by the gqlRequest function.
  *
  * Since the GraphQL server might through multiple errors at once,
  * this error class uses a message array.
@@ -102,7 +102,7 @@ class GqlError extends Error {
  *          Error with error message array on failure
  */
 
-export function gqlQuery(query)
+export function gqlRequest(query)
 {
   /* prepare fetch options */
   const fetchOpt = {
@@ -113,9 +113,9 @@ export function gqlQuery(query)
     body: JSON.stringify({ query: query }),
   };
 
-  /* if we're logged in, we add the authorization header */
-  if (store.session) {
-    fetchOpt.headers["Authorization"] = `Bearer ${store.session.token}`;
+  /* if we're logged in, we add the authorization header with the access token */
+  if (store.user) {
+    fetchOpt.headers["Authorization"] = `Bearer ${store.user.access_token}`;
   }
 
   console.info(`Sending request:\n${query}`);
diff --git a/src/util/oidc.js b/src/util/oidc.js
index 4966f45..49c604e 100644
--- a/src/util/oidc.js
+++ b/src/util/oidc.js
@@ -1,6 +1,9 @@
 /**
  * Configure oidc-client-ts library and retrieve UserManager instance for authentication.
  * 
+ * The documentation of oidc-client-ts is very...thin; this might be helpful:
+ * <https://gist.github.com/davidamidon/24c8a6980e116e62f781be4d6239d10d>
+ * 
  */
 
 import { Log, UserManager, WebStorageStateStore } from 'oidc-client-ts';
@@ -11,13 +14,18 @@ Log.level = (process.env.NODE_ENV === 'production') ? Log.ERROR : Log.DEBUG;
 // OIDC configuration
 const oidcProviderDomain = 'https://basebox-test-1.eu.auth0.com';
 const clientId = '5wl8hQV1thh07rScSoJ3aN56ETuXWprg';
+const clientSecret = 'QlHMvIffKLRviCcSu_bPQcf8e4dc6WeS3BwZE1r1F-9R30AFoeYEwaOazAuFenI5';
 const scopes = "openid profile email name nickname";
 export const callbackPath = "/auth/callback"
 
 /* OIDC UserManager singleton */
 let userMgr = null;
 
-// OIDC Client
+/**
+ * Get OIDC UserManager singleton.
+ * 
+ * @returns OIDC UserManager singleton.
+ */
 export const getOidcUserManager = () => {
   if (userMgr) {
     return userMgr;
@@ -27,11 +35,12 @@ export const getOidcUserManager = () => {
     userStore: new WebStorageStateStore(),
     authority: oidcProviderDomain,
     client_id: clientId,
+    client_secret: clientSecret,
     redirect_uri: window.location.origin + callbackPath,
     response_type: 'code',
     response_mode: 'query',
     scope: scopes,
-    post_logout_redirect_uri: window.location.origin + '/home?action=logout',
+    post_logout_redirect_uri: window.location.origin,
     accessTokenExpiringNotificationTime: 10,
     automaticSilentRenew: false,
     filterProtocolClaims: false,