Hi Damian!

That's awesome, and good to know - I first wrote that text a few months ago (on the basis of David's comments in that ticket) and haven't revised it since, so I am heartened to see progress.

However I am also not the best person to say what else will be needed, because that would probably be Donncha re: the future of OnionBalance for v3.

My understanding - and please jump in, if I am wrong - is that the synthesis of a v3 descriptor which blends the introduction points of several independent v3 "worker" Tor daemons will be a more complex affair than the existing process, because (?) the "worker" tor daemons will somehow have to be more actively involved - apparently they may have to sign the v3 Introduction Points themselves, though I am not sure how that will work for a blended descriptor? Multiple/distinct signatures, perhaps? The last opportunity I had to speak with anyone (re: this) was more than 1 year ago, so I am rusty, and I apologise if I have gotten some details wrong.

So: OnionBalance relies heavily upon Stem (https://github.com/DonnchaC/onionbalance/tree/develop/onionbalance) and I am not qualified to say what, if any, additional v3 Stem features will be useful or outstanding to support the descriptor-blending that is needed for loadbalanced configurations.