They're pretty mindful of sponsoring things that also works for us. I.e.: we try to align both our roadmaps as good as possible.

We're discussing how to work best with downstream dependencies as well. So far they're actively sponsoring Yjs, but not prosemirror/tt.

fyi, here are some early thoughts by the PM of Docs on how to collaborate between public sector and OSS (companies): https://github.com/virgile-dev/playbook-work-with-oss-librar... (we surely don't check all the boxes yet, but it's good to have the discussion!). Feel free to jump in!