If you want to play with this, it's deployable to Heroku (just add free Postgres to your Heroku app).

1. PostgreSQL
2. Environment variable DATABASE_URL set with PostgreSQL URI
3. Node.js

1. Setup PostgreSQL, database and user and set DATABASE_URL in environment (this is automatically done for you on Heroku when adding PostgresSQL add-on).
2. Install node packages with yarn.
3. Start server with npm start in production or npm run dev for development.

• typically, one would use webpack to build for production but as this is a demo, the babel/webpack packages are left in as normal dependencies and we just use bable-node
• quick demo -- not intended to be a ready to use system