some refactoring and modularizing locale

modules/nixos/services/security/agenix/default.nix

@@ -0,0 +1,63 @@
+{
+  config,
+  lib,
+  inputs,
+  pkgs,
+  self,
+  ...
+}: let
+  inherit (lib) mkIf mkEnableOption mkOption mkMerge;
+  cfg = config.nixos.services.security.agenix;
+in {
+  options = {
+    nixos.services.security.agenix = {
+      enable = mkEnableOption "Enables agenix system environment";
+      cnix.enable = mkOption {
+        type = lib.types.bool;
+        default = false;
+        description = "Apply cnix agenix settings";
+      };
+      toothpc.enable = mkOption {
+        type = lib.types.bool;
+        default = false;
+        description = "Apply toothpc agenix settings";
+      };
+      cnixpad.enable = mkOption {
+        type = lib.types.bool;
+        default = false;
+        description = "Apply cnixpad agenix settings";
+      };
+    };
+  };
+
+  config = mkIf cfg.enable {
+    age = mkMerge [
+      (mkIf cfg.cnix.enable {
+        secrets = {
+          cnstssh.file = "${self}/secrets/cnstssh.age";
+          cnixssh.file = "${self}/secrets/cnixssh.age";
+          helix-gpt = {
+            file = "${self}/secrets/helix-gpt.age";
+            owner = "cnst";
+            group = "users";
+          };
+        };
+      })
+      (mkIf cfg.toothpc.enable {
+        secrets = {
+          # Add toothpc specific secrets here
+        };
+      })
+      (mkIf cfg.cnixpad.enable {
+        secrets = {
+          # Add adampad specific secrets here
+        };
+      })
+    ];
+
+    environment.systemPackages = [
+      inputs.agenix.packages.x86_64-linux.default
+      pkgs.age
+    ];
+  };
+}