Schema-first Flutter UI composer for genui / a2ui.

• Drag widgets to a canvas and reorder them.
• Generate A2UI schema JSON from the canvas.
• Copy generated schema and paste into your Flutter code.
• Render schema instantly in a live preview.
• Generate/iterate schema from prompts using genui_google_generative_ai.
• Open Dartantic Lab from the header to generate genui_dartantic provider setup snippets.

• Firebase AI logic is not used.
• Gemini is used through genui_google_generative_ai.
• You can enter your own Gemini API key directly in the app UI.

flutter pub get
flutter run

• packages/a2ui_schema_builder: reusable schema generation core used by the workbench.