fox xcb only if display var is set

Author: nix

flake.nix

@@ -85,10 +85,6 @@
       formatter.${system} = pkgs.nixpkgs-fmt;
       devShells.${system}.default = pkgs.mkShell {
         buildInputs = mtfgDependencies;
-        shellHook = ''
-          # use xwayland not wayland
-          export QT_QPA_PLATFORM="xcb"
-        '';
       };
     };
 }

funscript_editor/__main__.py

@@ -24,8 +24,9 @@ def main():
 
     if os.path.abspath(__file__).startswith("/nix"):
         # pynput does not work well with native wayland so we use xwayland to get proper keyboard inputs
-        print("Warning: Force QT_QPA_PLATFORM=xcb")
-        os.environ['QT_QPA_PLATFORM'] = "xcb"
+        if os.environ.get('DISPLAY'):
+            print("Warning: Force QT_QPA_PLATFORM=xcb for better user experience")
+            os.environ['QT_QPA_PLATFORM'] = "xcb"
 
     if not args.generator: show_editor()
     else: generate_funscript(args.input, args.start, args.end, args.output, args.multiaxis, args.no_tracking, args.logs, args.stdout)