service/hardware/monitor: init

machines/thinkman/hardware-configuration.nix

@@ -27,6 +27,7 @@ in
     graphics.cpuFlavor = cpuFlavor;
     id-card.enable = true;
     keychron.enable = true;
+    monitor.enable = true;
     sound.enable = true;
     thunderbolt.enable = true;
     yubikey.enable = true;

modules/hardware/default.nix

@@ -9,6 +9,7 @@
     ./graphics
     ./id-card
     ./keychron
+    ./monitor
     ./sound
     ./thunderbolt
     ./yubikey

modules/hardware/monitor/default.nix

@@ -0,0 +1,23 @@
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}:
+let
+  cfg = config.my.hardware.monitor;
+in
+{
+  options.my.hardware.monitor = {
+    enable = lib.mkEnableOption "monitor configuration";
+  };
+
+  config = lib.mkIf cfg.enable {
+    hardware.i2c.enable = true;
+
+    environment.systemPackages = with pkgs; [
+      ddcutil
+      ddcui
+    ];
+  };
+}