fix

modules/features/dev/agent.nix

@@ -0,0 +1,13 @@
+{ lib, config, ... }:
+let
+  cfg = config.my.features.dev.agent;
+in
+{
+  options.my.features.dev.agent = {
+    enable = lib.mkEnableOption "AI coding agents (Claude Code)";
+  };
+
+  config = lib.mkIf cfg.enable {
+    my.applications.claude.enable = true;
+  };
+}

modules/features/dev/bun.nix

@@ -0,0 +1,20 @@
+{
+  pkgs,
+  lib,
+  config,
+  ...
+}:
+let
+  cfg = config.my.features.dev.bun;
+in
+{
+  options.my.features.dev.bun = {
+    enable = lib.mkEnableOption "Bun JavaScript runtime";
+  };
+
+  config = lib.mkIf cfg.enable {
+    environment.systemPackages = with pkgs; [
+      bun # A Fast JavaScript Runtime Like Node.js And Deno
+    ];
+  };
+}

modules/features/dev/default.nix

@@ -0,0 +1,9 @@
+{
+  imports = [
+    ./agent.nix
+    ./bun.nix
+    ./java.nix
+    ./nix.nix
+    ./python.nix
+  ];
+}

modules/features/dev/java.nix

@@ -0,0 +1,13 @@
+{ lib, config, ... }:
+let
+  cfg = config.my.features.dev.java;
+in
+{
+  options.my.features.dev.java = {
+    enable = lib.mkEnableOption "Java development environment";
+  };
+
+  config = lib.mkIf cfg.enable {
+    my.applications.java.enable = true;
+  };
+}

modules/features/dev/nix.nix

@@ -0,0 +1,20 @@
+{
+  pkgs,
+  lib,
+  config,
+  ...
+}:
+let
+  cfg = config.my.features.dev.nix;
+in
+{
+  options.my.features.dev.nix = {
+    enable = lib.mkEnableOption "Nix development tools (nil language server)";
+  };
+
+  config = lib.mkIf cfg.enable {
+    environment.systemPackages = with pkgs; [
+      nil # Nix Language Server
+    ];
+  };
+}

modules/features/dev/python.nix

@@ -0,0 +1,21 @@
+{
+  pkgs,
+  lib,
+  config,
+  ...
+}:
+let
+  cfg = config.my.features.dev.python;
+in
+{
+  options.my.features.dev.python = {
+    enable = lib.mkEnableOption "Python development environment";
+  };
+
+  config = lib.mkIf cfg.enable {
+    environment.systemPackages = with pkgs; [
+      python312 # Python 3.12
+      uv # Universal Virtual Environment Manager For Python
+    ];
+  };
+}