remove flutter impl

flake.nix

@@ -19,53 +19,30 @@
       perSystem = { pkgs, system, ... }: {
         _module.args.pkgs = import nixpkgs {
           inherit system;
-          config.allowUnfree = true;
+          # config.allowUnfree = true;
         };
 
         devShells.default = with pkgs;
-          let
-            vscodeCustom = pkgs.vscode-with-extensions.override {
-              vscodeExtensions = with pkgs.vscode-extensions; [
-                # Flutter
-                dart-code.dart-code
-                dart-code.flutter
-
-                # Nix
-                bbenoist.nix
-                brettm12345.nixfmt-vscode
-              ];
-            };
-          in mkShell {
+          mkShell {
             buildInputs = [
               sqlite
 
-              # Dev tools
-              just
-              vscodeCustom
-
-              # Flutter
-              flutter
-
-              # Linux toolchain
-              clang_15
-              cmake
-              ninja
-              pkg-config
-              gtk3
-              pcre
-              libepoxy
-
               # Zig / webAssembly impl.
               zig
               zls
               emscripten
+
+              # Tools
+              nixfmt
+
+              # Linux graphical deps
+              xorg.libX11
+              libGL
             ];
 
-            # see: https://discourse.nixos.org/t/flutter-run-d-linux-build-process-failed/16552/2
-            shellHook = ''
-              export LD_LIBRARY_PATH=${libepoxy}/lib
-            '';
           };
+
+        formatter = pkgs.nixfmt;
       };
     };
 }