Add Arduino module

This adds a small arduino development module that installs development
tooling and adds the user to the `dialout` group.

modules/arduino/default.nix

@@ -0,0 +1,23 @@
+{ lib, config, pkgs, ... }:
+with lib;
+let
+  psCfg = config.pub-solar;
+  cfg = config.pub-solar.devops;
+in
+{
+  options.pub-solar.arduino = {
+    enable = mkEnableOption "Life with home automation";
+  };
+  config = mkIf cfg.enable {
+    users.users = pkgs.lib.setAttrByPath [ psCfg.user.name ] {
+      extraGroups = [ "dialout" ];
+    };
+
+    home-manager = with pkgs; pkgs.lib.setAttrByPath [ "users" psCfg.user.name ] {
+      home.packages = [
+        arduino
+        arduino-cli
+      ];
+    };
+  };
+}

overlays/overrides.nix

@@ -15,6 +15,8 @@ channels: final: prev: {
     deploy-rs
 
     tdesktop
+    arduino
+    arduino-cli
     ;