For full-screen mode open JSLinux Mobile in the Safari browser and look in its menu for an option named “Add to Home Screen” – a new icon will be created in your applications.
The default preset is intended for iPad with a bluetooth keyboard, but you can change the appearance of the application. Each change of the settings will be saved in cookies and stored.
This basic Linux can be used to practice programming in C, bash, support for awk and sed, create a pseudo-network (because this version of the emulator does not allow Linux to connect to the Internet), and learn the basic Linux commands thanks to the Busybox software.
For offline mode use free inuX application, run ftpd on it, upload JSLinux files to /etc folder with FileZilla, run httpd and open address http://localhost/etc/jslinux-mobile/index.html.