This is a completely different, lightweight Linux distribution that is often used for "live" booting from a USB drive.
If you are looking to download these, you can find the Linux versions on SourceForge or follow the official Doofy Projects for the Windows-based modifications.
Unlike Windows 11, MiniOS Linux does support 32-bit (x86) architectures, making it a viable option for hardware that cannot run 64-bit software at all.