add linux desktop deps

flake.nix

@@ -24,10 +24,37 @@
         devShells.default = with pkgs;
           let
             vscodeCustom = pkgs.vscode-with-extensions.override {
-              vscodeExtensions = with pkgs.vscode-extensions;
+              vscodeExtensions = with pkgs.vscode-extensions; [
-                [ dart-code.flutter bbenoist.nix brettm12345.nixfmt-vscode ];
+                # Flutter
+                dart-code.dart-code
+                dart-code.flutter
+
+                # Nix
+                bbenoist.nix
+                brettm12345.nixfmt-vscode
+              ];
+            };
+          in mkShell {
+            buildInputs = [
+              just
+              flutter
+              vscodeCustom
+
+              # Linux toolchain
+              clang_15
+              cmake
+              ninja
+              pkg-config
+              gtk3
+              pcre
+              libepoxy
+            ];
+            
+            # see: https://discourse.nixos.org/t/flutter-run-d-linux-build-process-failed/16552/2
+            shellHook = ''
+              export LD_LIBRARY_PATH=${libepoxy}/lib
+            '';
           };
-          in mkShell { buildInputs = [ just flutter vscodeCustom ]; };
       };
     };
 }