@augier I definitely wouldn't consider myself a core dev even though I am a member of the core team. While I have some understanding of how diaspora* federates, it's mostly theory and I don't consider myself in any way an expert in federation or protocol stuff (though I am a professional software developer otherwise). I do run my own pod and otherwise am quite deep in the project.
Anyway, I'm still going to apply, since no one else is doing it. I've signed up for a W3C account which is needed to apply - unfortunately the confirmation email seems to have stuck somewhere since it's not arrived and not in spam. If it doesn't arrive by tomorrow, I guess I'll have to try to see if it can be resent or something.
Regarding actual stuff I could contribute - I'd definitely be listening and maybe present some views looking from diaspora* side of things - and most importantly relay stuff to here on Loomio for others to comment on. Otherwise unfortunately time is quite limited.
Thanks to the efforts of @christopherallanwe on IRC