In the Vercel website: https://vercel.com/ , cerate a deployment from your github repo.

Required Environment Variables

MONGODB_URI
MONGO_DB_NAME
MONGO_DB_NAME_DEV
MONGO_DB_NAME_PROD
AUTH_GOOGLE_ID
AUTH_GOOGLE_SECRET
AUTH_GITHUB_ID
AUTH_GITHUB_SECRET
NEXT_PUBLIC_APP_URL

How to generate MongoDB related

How to generate Google Auth related

How to generate Github Auth related

How to generate Next Auth

How to add more team member into the free plan to trigger auto deployment