migrated all languages to devshell

modules/dev/cc.nix

@@ -4,19 +4,33 @@
   pkgs,
   ...
 }:
-
+let
+  packages = builtins.attrValues {
+    inherit (pkgs)
+      clang # C/C++ compiler frontend (part of LLVM)
+      clang-tools # Extra LLVM tools (e.g. clang-tidy, clang-apply-replacements)
+      gcc # GNU Compiler Collection (C, C++, etc.)
+      gdb # GNU Debugger
+      valgrind # Memory leak detector and performance profiler
+      ;
+  };
+in
 {
-  options.my.dev.cc.enable = lib.mkEnableOption "enable";
-
-  config = lib.mkIf config.my.dev.cc.enable {
-    users.users.jawz.packages = builtins.attrValues {
-      inherit (pkgs)
-        clang # C/C++ compiler frontend (part of LLVM)
-        clang-tools # Extra LLVM tools (e.g. clang-tidy, clang-apply-replacements)
-        gcc # GNU Compiler Collection (C, C++, etc.)
-        gdb # GNU Debugger
-        valgrind # Memory leak detector and performance profiler
-        ;
+  options = {
+    my.dev.cc.enable = lib.mkEnableOption "Install C/C++ tooling globally";
+    devShells.cc = lib.mkOption {
+      type = lib.types.package;
+      default = pkgs.mkShell {
+        inherit packages;
+        name = "cc-dev-shell";
+        shellHook = ''
+          echo "🔧 C/C++ dev environment"
+        '';
+      };
+      description = "C/C++ development shell";
     };
   };
+  config = lib.mkIf config.my.dev.cc.enable {
+    users.users.jawz.packages = packages;
+  };
 }