zig-reload

Based around the idea of this, this is a proof-of-concept for code swapping using zig. Accordingly ugly.
Depends on a POSIX libc with inotify support. To run, first start the main program with zig build; cd zig-cache/bin; ./run, then edit the function do_the_thing in libreload.zig and rebuild the project using zig build. If everything works out, the program will reload the library and run the new function.