Yes! Through Progressive Web App (PWA) capabilities, your Needle app can run even without internet, and even be installed on devices if needed.

The typical workflow:

1. Create your app using Needle Engine.
2. Add the Needle PWA plugin.
3. On the presentation device (kiosk, tablet, PC), open the application’s URL once while online. All assets will automatically be cached.
4. The device can now be taken offline. The PWA will run reliably from the local cache, providing a seamless experience. You can also install the PWA on the device - adding it to the home screen or desktop - for easier launching.

Learn More: Creating a PWA for Needle Engine In Depth: What is a PWA (MDN docs)