#keyboard

Make macOS pick the right input source for whichever keyboard you actually type on — French (Mac) for the built-in and Apple keyboards, French-PC for a Keychron V6 Max — using two Karabiner-Elements rules, plus the two traps that silently break it: keyboards that also declare themselves as pointing devices, and the console user server not restarting after a Karabiner update.

The desktop session uses the right keyboard layout, but the display manager greeter is still QWERTY. On Debian and Ubuntu the system-wide layout lives in /etc/default/keyboard and is applied by console-setup — localectl set-x11-keymap is deliberately disabled on these distributions.

The greeter of GDM, SDDM or LightDM ignores the layout configured in the desktop session. On localectl-driven distributions the fix is a single command that writes /etc/X11/xorg.conf.d/00-keyboard.conf — which Wayland greeters read too, via xkbcommon.

Remap the Super key so Super+C/V/X copy/paste/cut in every app and in the Ptyxis terminal on Fedora GNOME Wayland, just like Cmd+C/V on macOS.

The FW16 white keyboard backlight self-toggles because of the QMK breathing effect; disable it with qmk_hid (built from source on Fedora).

Wire the FW16's separate QMK keyboard backlight into native GNOME control (Quick Settings slider + brightness keys) via a kernel uleds virtual LED and a qmk_hid bridge daemon.