{ pkgs, ... }:
{
  boot.kernelModules = [ "cec" ];

  environment.systemPackages = with pkgs; [
    libcec
  ];

  services.udev.extraRules = ''
    # Pulse-Eight CEC adapter
    SUBSYSTEM=="tty" ACTION=="add" ATTRS{manufacturer}=="Pulse-Eight" ATTRS{product}=="CEC Adapter" GROUP="video" MODE="0660"
  '';

  systemd.sockets."cec-client" = {
    wantedBy = [ "sockets.target" ];
    socketConfig = {
      ListenFIFO = "/run/cec.fifo";
      SocketGroup = "video";
      SocketMode = "0660";
    };
  };

  systemd.services."cec-client" = {
    wantedBy = [ "multi-user.target" ];
    serviceConfig = {
      ExecStart = ''${pkgs.libcec}/bin/cec-client -d 1 -o /dev/ttyACM0'';
      ExecStop = ''/bin/sh -c "echo q > /run/cec.fifo"'';
      StandardInput = "socket";
      StandardOutput = "journal";
      Restart = "on-failure";
    };
  };
}