If you think hiring a person to manage this is cheaper than the setup they have, or even remotely reasonable for a volunteer project, then there’s nothing more to discuss.
That is in no way shape or form grounded in reality.
I think I know a bit more about this particular problem than a (senior) software developer. Infra management is my profession, which I've been doing for decades. The conversation might have been more interesting if you hadn't been so rude initially.
This conversation might have been more interesting if your point was anything but "it's easy, trust me bro", which you continue to do.
Waving credentials around and proposing solutions not remotely feasible for the problem at hand generally does not sway people nor provide for interesting discussion.
That is in no way shape or form grounded in reality.