Hello ! I have been a little out of the loop of SpiceDB, and saw a few changes have been made. I have not seen howerver any mention of reverse relations. have I missed it ? I found https://github.com/authzed/spicedb/issues/356 still open without much activity, is this planned to be explored ? for now, if we want to be able to travel a relation both ways, there is no other choice than to have 2 distinct relations and do our best to keep it synchronized ?

correct, you'd write and delete those relationships atomically. it means two relationships per call, but it should be relatively straightforward to keep them in sync. i don't know what the priority of that issue is.