Add gc

nix/nixos/modules/dev.nix

@@ -11,13 +11,8 @@
     visidata
     bubblewrap
 
-    # TODO: Custom packages - need to verify availability or create derivations
-    # These packages were in the original configuration but may need custom setup:
-    # claude-code
-    # opencode
-    # gemini-cli
-
-    # Uncomment the above packages if they are available in your nixpkgs,
-    # or create custom derivations for them in a separate packages/ directory.
+    claude-code
+    opencode
+    gemini-cli
   ];
 }