Add Cardputer ADV Keyboard support#204

Draft

TheOddCell wants to merge 4 commits intoecho-lalia:mainfrom

TheOddCell:main

Commits on Oct 31, 2025

idk how to test this
TheOddCell
committed

Commits on Nov 1, 2025

maybe this works?
TheOddCell
committed

Commits on Nov 4, 2025