We’re using tcl’s Androwish build, to write tablet apps for Android to control our espresso machine, and the app runs nicely on Mac/win/linux “for free” and also makes app development more pleasant.

Distribution of an app with source easily modified (no build step) encourages tinkering.

Androwish also has a cool mp4 casting mode which replaces the screen rendering, that lets you use your app inside a web browser. https://www.youtube.com/watch?v=2GBmB6JSDnQ