Install dependencies:
npm install
Create a .env file that containes the PostgreSQL connection string for each environment (eg: local, prod):
echo CALL_PG_URL=postgres://postgres:postgres@localhost:5432/postgres > .env.dev
echo CALL_PG_URL=postgres://user:pass@example.com:5432/dbname > .env.prod
Run the tool:
npm run dev
or
npm run prod