The idea of building a piece of software once and run it everywhere is certainly charming. And Go supports cross-compiling out of the box.

Fyne is a very promising GUI package for Go that helps you build a GUI app and cross-compile it for (almost) all devices and OSes.

For a quick example, this code gives you a small window with a label and an input field. Grab this piece of code, init a mod and tidy it, and you are good to go. ⋯