diff --git a/README.md b/README.md
index 77cb611..a6babdb 100644
--- a/README.md
+++ b/README.md
@@ -75,7 +75,23 @@ And then visit [https://localhost:5000](https://localhost:5000).
 
 ## Configuring it
 
-More details to be supplied when available.
+### App grid
+
+An applist is configurable in the public folder to setup the grid of app accessible within Twake Calendar. 
+
+Each app has three fields:
+
+- name: the app’s name
+- icon: the link to the app’s icon
+- link: the app’s link or URL
+
+Example:
+
+```js
+var appList = [
+  { name: "My App", icon: "https://myapp.com/myapp.png", link: "https://myapp.com" },
+];
+```
 
 ## Roadmap
 
diff --git a/src/components/Menubar/Menubar.tsx b/src/components/Menubar/Menubar.tsx
index 8846723..8d8c2f3 100644
--- a/src/components/Menubar/Menubar.tsx
+++ b/src/components/Menubar/Menubar.tsx
@@ -15,7 +15,7 @@ export type AppIconProps = {
 
 export function Menubar() {
   const user = useAppSelector((state) => state.user.userData);
-  const applist: AppIconProps[] = (window as any).appList;
+  const applist: AppIconProps[] = (window as any).appList ?? [];
   const [anchorEl, setAnchorEl] = useState<null | HTMLElement>(null);
   const dispatch = useAppDispatch();
 
@@ -93,6 +93,7 @@ function AppIcon({ prop }: { prop: AppIconProps }) {
     <a
       key={prop.name}
       href={prop.link}
+      target="_blank"
       style={{ textDecoration: "none", color: "inherit" }}
     >
       <div>