Concrete guide for Credentials Provider with T3 + Next auth?

I've been trying to implement the credentials provider with standard email + password authentication for this whole day.
I haven't been able to get it to work, there are always errors like 'JWEDecryptionFailed: decryption operation failed'.
I also haven't been able to find a proper tutorial explaining it with t3, there are existing tutorials for the credentials provider, but it is often difficult to peace everything together bit by bit.

Given that 99% of webpages allow users to sign up with email + password, is there any existing Github repo you can recommend for this scenario?
Was this page helpful?