@prettygood @druid @snacks I've been running a source install since the beginning, because I expected I would need to patch things in the future. If you don't mind the gigabytes of build tools required for it to build, it's fine.

Converting an OTP install to a source one is a different can of worms. It might be better to create your own OTP releases from a patched branch.

Lanodan has an OTP build script for Gentoo which might give you some insight into how it should be done.
https://gitweb.gentoo.org/repo/proj/guru.git/tree/www-apps/pleroma/pleroma-2.7.1.ebuild