nixos-config/modules/system/devices/udev/default.nix

{ pkgs, ... }:
{
  services.udev = {
    packages = [ 
      (pkgs.writeTextFile {
        name = "10-oculus.rules";
        text = ''KERNEL=="hidraw*", ATTRS{idVendor}=="0e6f", ATTRS{idProduct}=="0184", MODE="0660", TAG+="uaccess"'';
        destination = "/etc/udev/rules.d/10-oculus.rules";
      })
      (pkgs.writeTextFile {
        name = "10-pdp.rules";
        text = ''SUBSYSTEM=="usb", ATTR{idVendor}=="2833", MODE="0666"'';
        destination = "/etc/udev/rules.d/10-pdp.rules";
      })
    ];
  };
}