Install OohSleep on Windows, Mac, or Linux
In Chrome's address bar, look for the install icon (a computer with a download arrow). Click on it.
Click the three dots menu (⋮) → Select "Install OohSleep..." or "Save and Share" → "Install".
Click "Install" in the popup dialog. The app will open in its own window and be added to your desktop/start menu.
Edge shows an "App available" icon in the address bar when a PWA can be installed. Click on it.
Click the three dots menu (···) → "Apps" → "Install OohSleep" or "Install this site as an app".
Click "Install". You can choose to pin it to your taskbar, create a desktop shortcut, or add to Start menu.
Note: PWA installation requires Chrome, Edge, or other Chromium-based browsers. Firefox and Safari on desktop don't fully support PWA installation yet.