The update was hard; the jsonld.js library was choking on the FEP's context document because Codeberg Pages, where FEP context documents are hosted, is unreliable.
I ended up adding a feature to the `activitystrea.ms` NodeJS library to let you pre-cache a context document, so it didn't have to go fetch it at run time. While I was under the hood, I also fixed a couple of bugs that made it hard to work with extra context documents.
The bot server is now working; I'm going to add more contexts.