nixos-configuration/nix-os/desktopManagers/cosmic-config/com.system76.CosmicSettings.Shortcuts/v1/custom

{
    (
        modifiers: [
            Ctrl,
            Alt,
        ],
        key: "t",
        description: Some("Open terminal"),
    ): Spawn("kitty"),
    (
        modifiers: [
            Super,
            Ctrl,
        ],
        key: "l",
    ): System(LockScreen),
    (
        modifiers: [
            Super,
        ],
    ): System(Launcher),
}