hardware/keychron: add & enable on thinkman

modules/hardware/keychron/default.nix

@@ -0,0 +1,21 @@
+{ config, lib, pkgs, ... }:
+let
+  cfg = config.my.hardware.keychron;
+in
+{
+  options.my.hardware.keychron = {
+    enable = lib.mkEnableOption "keychron configuration";
+  };
+
+  config = lib.mkIf cfg.enable {
+    services.udev.packages = with pkgs; [
+      qmk-udev-rules
+      via
+    ];
+
+    environment.systemPackages = with pkgs; [
+      qmk
+      via
+    ];
+  };
+}