@16af93 @pesekcuy The hardware part was pretty easy, cutting some metal and plastic tabs, the annoying part can be the EC firmware flash (required to map the keys to their proper scancodes) with custom splash screens or the 1vyrain BIOS.
I followed this guide: https://www.instructables.com/ThinkPad-T430T430sX230-Classic-Keyboard-Mod
and the guides in the GitHub repos for the 1vyrain BIOS (https://github.com/n4ru/1vyrain) and the EC mod (https://github.com/hamishcoleman/thinkpad-ec).