[adrian_b]

I agree that instead of implementing the Linux syscalls implementing just those libc functions that are OS dependent is sufficient for a large fraction of the existing programs.

However, this means implementing a POSIX layer, similarly to Windows NT. So it is a solution more distant from a "non-POSIX operating system".

While a large part of the Linux syscalls have been motivated by the necessities of implementing POSIX, there are also significant differences and the Linux applications that require the best performance must deviate significantly from POSIX, so they are no longer based on libc for I/O.

[noone_youknow]

There would likely be value in a POSIX layer as you describe, at least from the point of view of porting existing programs. And perhaps it will happen, if I get far enough along, but it will never be a kernel feature - it would be an entirely userspace concept intended only to speed up porting and building out said user space.

Perhaps in the fullness of time essential software can be rewritten to Anos’ “native API”, or perhaps that’s a pipe dream and not worth the work, but the option will be there.