diff --git a/electron/main/index.ts b/electron/main/index.ts
index 361b2e9..841e029 100644
--- a/electron/main/index.ts
+++ b/electron/main/index.ts
@@ -63,7 +63,7 @@ async function createWindow() {
     //nativeTheme.themeSource = "light"
 
     if (process.env.VITE_DEV_SERVER_URL) { // electron-vite-vue#298
-        win.loadURL(url)
+        win.loadURL(url + '?dev=1')
         // Open devTool if the app is not packaged
         //win.webContents.openDevTools()
     } else {
diff --git a/src/App.vue b/src/App.vue
index 2cdb607..1deb8ee 100644
--- a/src/App.vue
+++ b/src/App.vue
@@ -2,7 +2,7 @@
     import HelloWorld from './components/HelloWorld.vue'
     import StatusBar from './components/StatusBar.vue'
     import Editor from './components/Editor.vue'
-    
+
 
     export default {
         components: {
@@ -20,6 +20,7 @@
                 theme: window.darkMode.initial,
                 initialTheme: window.darkMode.initial,
                 systemTheme: 'system',
+                development: window.location.href.indexOf("dev=1") !== -1,
             }
         },
 
@@ -66,6 +67,7 @@
     <Editor 
         @cursorChange="onCursorChange"
         :theme="theme"
+        :development="development"
         class="editor"
     />
     <StatusBar 
diff --git a/src/components/Editor.vue b/src/components/Editor.vue
index e55a0c1..ce367de 100644
--- a/src/components/Editor.vue
+++ b/src/components/Editor.vue
@@ -1,11 +1,22 @@
 <script>
     import { ref, shallowRef } from 'vue'
     import { HeynoteEditor } from '../editor/editor.js'
-    import initialData from "../editor/fixture.js"
+    import testContent from "../editor/fixture.js"
+
+    const initialContent = `
+∞∞∞text-a
+Welcome to Heynote!
+
+[⌘ + Enter]        Insert new note block
+[⌘ + A]            Select all text in a note block. Press again to select the whole scratchpad
+[⌘ + ⌥ + Up/Down]  Add additional cursor above/below
+∞∞∞text-a
+`
 
     export default {
         props: [
             "theme",
+            "development",
         ],
         mounted() {
             this.$refs.editor.addEventListener("selectionChange", (e) => {
@@ -19,8 +30,7 @@
 
             this.editor = new HeynoteEditor({
                 element: this.$refs.editor,
-                //content: "\n∞∞∞text\n",
-                content: initialData,
+                content: this.development ? testContent : initialContent,
                 theme: this.theme,
             })
         },