(disclaimer: I work at Netlify) It's not a 1:1 channel, we're pushing for as much work in the open as possible, and extending the OpenNext group to more members.

IMHO one major challenge is the amount of work one has to do to build an adapter, if we can make the spec leaner and move logic out of e.g. the CacheHandler, that's gonna make it easier for you to create your own (or you could state that some features/modes are not supported - but for that, you'd need to have a very good idea of what these even are)