The .env-file has the default value for the API adress set in VITE_API_BASE_URL. It can be changed if needed.
When not using the docker-compose setup of the main-repository, using a virtual environment is suitable.
Install the packages from the package.json and switch the directory with cd nfAnalysisUI.
Then simply run npm run dev.
Now the UI is available under http://localhost:8001, which is the default server set in the vite.config.ts.
If wished, the value can be adjusted there.