For the template you need a working PostgreSQL go to the PostgreSQL website.
Copy .env.example to .env
PORT=
HOST=""
ENV="dev"
LOG_LEVEL=
DATABASE_HOST=""
DATABASE_PORT=
DATABASE_USER=""
DATABASE_PASSWORD=""
DATABASE=""
# How long in SECCONDS you want the access token to be valid
ACCESS_TOKEN_LIVE_TIME=
# How long in SECCONDS you want the refresh token to be valid
REFRESH_TOKEN_LIVE_TIME=
LOGOUT_REDIRECT_URI=""after that you can start the app with:
npm run dev