sys-fs/
btrfsmaintenance

Scripts for btrfs maintenance tasks like periodic scrub, balance, trim or defrag

https://github.com/kdave/btrfsmaintenance

There are no pull requests

You think something is missing here?
Start with filling a new pull requests.

If you also like to help the Gentoo project, you can consider sending a Pull Request via GitHub.
Before doing so, you might want to take a look at the wiki page.