using NEXTAUTH_URL from runtime env

[lucifer-simplai]

I have an application which uses next-auth.js for authentication.

I have a requirement to create a golden image for the project which then can be deployed at any domain and the next-auth will work with all the domain. now sine my current understanding is that the NEXTAUTH_URL is picked from the env at build time how can I change this behaviour to pick this variable at runtime so that our application can be dynamic and the same build can be deployed at any DNS and it will work as expected without breaking.