I think I got stuck where most people that get stuck do. Moorwing. But I also was stuck on 3 combat rooms (opposite moorwing, 4th mask frag, past the red barbarian mini boss) and stuck past a locked door that i bought a key for.
I modded it. With 1 mask damage limit, and 1.5-2x damage output makes it feel like a normal difficulty setting.
I thought so too for a long time. Had to figure it out for actual budget though. Tailscale makes that aspect pretty simple. Still probably too complex for your average user, but if you're setting up self hosted apps you should be able to figure it out.