[inportb]

This is more similar to iVentoy, which implements PXE boot, but is closed source. netboot.xyz, on the other hand, requires boot images to be extracted and served in an iPXE-friendly format, which their CI/CD system does automatically. These solutions are good for facilitating OS installations across a fleet of computers on a network.

But for system rescue purposes, Ventoy still wins. You bring your own boot images, which could be arbitrary ISOs, and don't have to worry about networking availability.

[zbrozek]

I got an NVMe to USB enclosure, put a disk I had laying around into it, and loaded Ventoy onto the disk. It's fantastically fast and I love it.