@grishka @sl007

I was generally speaking in reaction to Sebastian and AS/AP having holes for devs to fill in to their own design, which leads to divergence.

Am in favour of capability negotation. I believe in the past it was discussed (but in the context of NodeInfo vNext), was seen as too complex, and a temporary compromise in form of FEDERATION.md came up, until we'd tackle it later. So maybe now is that time :)

Yes, we may have FEP + XEP pairs, instead of v2 specs.