• https://niri-wm.github.io/niri/Configuration%3A-Key-Bindings.html
• https://man.voidlinux.org/xkeyboard-config
Also, since the Void version of Kanata cannot launch apps, I’ve been using it in combination with Niri anyway. Niri had a ridiculous shortcut, such as Mod+Shift+Ctrl+F, and Kanata sends those keys with just CapsLock+F.