On deploying express to vercel:

https://dev.to/tirthpatel/deploy-node-ts-express-typescript-on-vercel-284h

Deployment

1. Build npm run build
2. Comment out app.listen from src/index.js
3. Run vercel dev to test the deployment
4. Run vercel to deploy to preview
5. Run vercel --prod to deploy to production

Todo:

• Add environment variable that dispenses the need to comment app.listen