Good to see you :), there a lot of good questions ! I'm not working on the project anymore so you'll be able to reply with better answer.
But still had a really good experience with you guys.
I totally agree on your comment by the way, it's not ideal at all, I'm not even working on the project anymore, every update, every feature is always a pain as we had to do reverse engineering.
Everything on this project is "hackie", it is not a solution for the future, the day Apple will change their license or break retro compatibility, the project will have no chance to survive.
So yes, the mac mini is absolutely not designed to be placed in a DC, a special product for that purpose would be better.
So it's a risky bet from a technical point of view.
We were a little team, doing the API dev, the infra, the hardware and countless things.
The product is improving and it was impossible to even imagine remoing the case as we spent so many time wiring everything, going to DC and setting up everything.
Yes the team is actually doing all of this, even going to DC installing the macs in the racks.
But I agree that for a big scale, this is a good solution. (cf: github)
Yes, the experience is pretty bad, we were doing baremetal, so I assume there were only a single user on it.
The tooling and its documentation was really bad too, actually we based ourselves on the asahi project and its documentation and some open-source project that did a lot of work on reverse engineering all of the system we used.
From a user based perspective, using the remote desktop feature was a pain and I don't think any of our users were actually using it, the main use was : CI, AI training and bitcoin mining.