You could consider Lazarus/Free Pascal for your project. I've run it on my Windows machines, and a Raspberry Pi Zero W. It does Linux, of course. I've not yet

You could consider Lazarus/Free Pascal for your project. I've run it on my Windows machines, and a Raspberry Pi Zero W. It does Linux, of course. I've not yet tried to compile for Android or WASM, but in theory those are possible.