My take on this is this project, which implements a dynamic loader for linux x86_64. It works with glibc and musl, since the system libc is loaded like any other dynamic library when loading dependencies. I have been reporting progress in this thread. There is also an x11 + vulkan example. I am currently using it, as I recently started working on a desktop app framework that produces very portable static libc-free executables that work with X11 or Wayland and CPU or GPU rendering. Having dlopen in zig unleashes a lot of use cases. 
1 Like