Note: .env.example is an example of the secrets file. .env*.local should be added to .gitignore, as those files are intended to be ignored. .env.development.local is where secrets can be stored.
Set defaults in .env.example.
Environment Variable Load Order-
https://nextjs.org/docs/basic-features/environment-variables#environment-variable-load-order
Change env variables on vercel from CLI- https://vercel.com/docs/cli/env
To turn on dev server-
npm run dev
Build a docker container-
docker-compose up -d --build
To turn off dev server-
docker-compose down
Turn on dev server-
docker-compose up