Run in Android environments where puzzles make sense: phones, tablets, Chromebooks, maybe TVs, not watches or cars.

Provide the same puzzle collection that the upstream project provides for other platforms.

Provide appropriate controls for Android environments, e.g. on-screen buttons and the use of long-press instead of right-click.

Provide appropriate display adjustments for mobile use-cases, e.g. night mode, and minor changes to the recommended sizes of puzzles.

Run completely offline, inc