Steps

1. Start the Codespace or Dev Container (which contains a local PostgreSQL container).

2. Install the FastAPI app in editable mode:

python3 -m pip install -e src

1. Run the FastAPI app

python3 -m uvicorn fastapi_app:app --reload --port=8000

1. Run the frontend

cd src/frontend
npm run dev

1. Open the browser at http://localhost:5173/ and you will see the frontend.