niksos/hosts/common/optional/v4l2.nix

{
    config,
    pkgs,
    ...
}: {
    boot = {
        extraModulePackages = [ config.boot.kernelPackages.v4l2loopback ];
        kernelModules = [ "v4l2loopback" ];
    };

    environment.systemPackages = [ pkgs.v4l-utils ];
}