nixpkgs/nixos/modules/hardware/uinput.nix

{ config, lib, ... }:

let
  cfg = config.hardware.uinput;
in
{
  options.hardware.uinput = {
    enable = lib.mkEnableOption "uinput support";
  };

  config = lib.mkIf cfg.enable {
    boot.kernelModules = [ "uinput" ];

    users.groups.uinput.gid = config.ids.gids.uinput;

    services.udev.extraRules = ''
      SUBSYSTEM=="misc", KERNEL=="uinput", MODE="0660", GROUP="uinput", OPTIONS+="static_node=uinput"
    '';
  };
}