In order to migrate Soapbox to Pleroma I need to reimplement recurring donations. I decided to build it as a microservice that can run alongside any Fediverse server and expose new endpoints that a frontend may take advantage of: https://gitlab.com/soapbox-pub/soapbox-patron
It's still a work in progress, but the idea is for it to be self-contained and interoperable. soapbox-fe will be fully intergrated with it (it has already been updated to pull down funding info).