Initial creation of llm-agent pi role.

Still building, not sure it'll work, but it's at least building so let's
roll with it.

modules/system/pi.nix

@@ -0,0 +1,30 @@
+{ config, configFiles, inputs, lib, pkgs, ... }:
+with lib;
+
+let
+	cfg = config.myModules.pi;
+	group = "root";
+	user = "root";
+in {
+	options.myModules.pi = {
+		domainName = mkOption {
+			example = "staging-pi.nidus.cloud";
+			type = types.str;
+		};
+		enable = mkEnableOption "custom pi configuration";
+	};
+
+	config = mkIf config.myModules.pi.enable {
+		environment.systemPackages = with inputs.llm-agents.packages.${pkgs.stdenv.hostPlatform.system}; [
+			pi
+		];
+		sops.secrets."pi-env" = {
+			format = "dotenv";
+			group = "${group}";
+			mode = "0400";
+			owner = "${user}";
+			#restartUnits = ["${nidusNameWebserver}.service"];
+			sopsFile = ../../secrets/pi.env;
+		};
+	};
+}