We have one mailing list for the whole organization https://lists.sr.ht/~pepe/good-place on SourceHut.
No, we do not plan any social network presence for the organization.
As I said in the Birth post, I will be happy to have partners in this endeavor.
For now, the plan is to polish and integrate existing libraries and codes. One minor is the extraction of the jhydro enabled fork of spork/rpc from Neil.