Its similar to the original macOS, which used handles to track/access/etc memory requested from the OS and swap them to disk as needed. First you request the sp

Its similar to the original macOS, which used handles to track/access/etc memory requested from the OS and swap them to disk as needed. First you request the space, then you request access, which pinned it into ram. PalmOS was another one that worked similarly. https://www.fuw.edu.pl/~michalj/palmos/Memory.html https://www.fuw.edu.pl/~michalj/palmos/Memory.html