This setup gets the internal keyboard, trackpad, sleep and speakers working on a 12" Retina MacBook (A1534, MacBook8,1) running Omarchy.
Tested on Omarchy 4.0.4 with kernel linux-omarchy 7.2.5-3, the Limine bootloader and a LUKS-encrypted disk (September 2026).
Check your model first: cat /sys/class/dmi/id/product_name should print MacBook8,1. Other 12" MacBooks (9,1 / 10,1) use different fixes.
You'll need an external USB keyboard for the installer and for the first boots, until part 1 is done.