This is the easiest Raspberry Pi Pico to Keyboard tutorial. You can make in easy visualized steps a functioning Macro keyboard, Password keyboard, or anything that you can do with a keyboard.

Here is the tutorial: https://www.instructables.com/The-Basic-Pico-Keyboard/

This tutorial is well tested on an audience with a beginner knowledge of soldering and coding. So you can also do this!

You can make your button casing with my laser-cut wood file or 3dprint file.