Follow next steps to start the application

Create an account at https://platform.openai.com/ if not already registered, go to next page https://platform.openai.com/account/api-keys and create an API key, save secret from created key.

Navigate and run next commands from your terminal:

cd backend
npm i
cp .env.dist .env

Paste saved secret into .env file as value of OPENAI_API_KEY key.

Run:

npm run start

After that open another terminal (tab or window), navigate to app's root folder and run following commands:

cd frontend
npm i
cp .env.dist .env
npm run dev

Now you can open http://localhost:3000 and use the app.