Hi. The pybuilder plugin pybuilder-scm-ver-plugin uses your package only to obtain the current version from SCM during the creation of a package. There is no need to include it in pyproject.toml (or in any other way) as the version is hard-coded after the pybuilder is done with its build and setuptools_scm is not longer needed.

Can you make the check optional? At least when calling setuptools_scm.get_version directly.