Just found this multi-account fediverse client that supports ActivityPub C2S! As far as I know it’s the only client supporting the C2S, but it’s exciting that we finally have a proper client. It’d be amazing if Lemmy added support for the C2S, so users could use their lemmy account from the same app as their microblog acct.
The spec is probably your best bet. I don’t know if any other resources for it. It’s pretty underused right now so nobody has really written about it
Thanks
I don’t know if AndStatus fully supports C2S as the issue about it is still open. This issue is likely also the most detailed info you’ll find on implementing C2S: https://github.com/andstatus/andstatus/issues/499