For Linux you can find it here (right now as beta!)
Installation for Linux:
sudo snap install spaceup-ui --channel=beta --devmode
- Git
- Flutter (current version)
- Android SDK (if you want to build for Android)
... else you need of course the SpaceUp-Server and an Uberspace 7!
# platform: apk, web, windows and etc.
flutter build <platform>
# or optionally run directly
flutter run