[Best Practices Request] clean/smudge configuration

Hi Git Team,

I'm trying to work out some best practices for managing clean/smudge filters and hit a bump. The situation is that I have an environment where the possible clean/smudge filter configuration can change over time and needs to be versioned with the product being managed in a git repository. Part of the configuration is no problem in .gitattributes, but the other bits are in .git/config. I get that the runnable part of the filters need to be strictly platform independent in principle, but I can abstract that part in this situation.

The question: what is the best practice for versioning the parts of clean/smudge filters that are in .git/config given that only some users in my environment will be cloning the repository in question and that I really can't put the entries in /etc/gitconfig or ~/.gitconfig because of potential conflicts with other repositories that might also have clean/smudge definitions.

Thanks, Randall