Problem: On the signup page I got an error "Password does not pass complexity requirements." The password field didn't show me any specific requirements and the error didn't show me what requirements I missed. In my case I've missed a symbol or special character. On default Gitea you get to see what requirements you've missed.
Solution: Show password requirements in the error like default Gitea.
I've got the error on https://codeberg.org/user/sign_up
I think you are on 1.10.0 https://codeberg.org/Codeberg/gitea/releases
The default error is added in the screenshot, that's from https://try.gitea.io/user/sign_up