Like Gnu Hurd or Minix3: https://www.gnu.org/software/hurd/ https://www.gnu.org/software/hurd/ >>It is a collection of servers that run on the Mach microkerne

Like Gnu Hurd or Minix3: https://www.gnu.org/software/hurd/ https://www.gnu.org/software/hurd/ >>It is a collection of servers that run on the Mach microkernel to implement file systems, network protocols, file access control, and other features that are implemented by the Unix kernel or similar kernels