Install FreeBSD on xhyve
The tutorial has an error. It refers to the userboot.so file in the Homebrew source code cache, which may not be in the same place or existent on all systems with xhyve installed.

A recent pull request into homebrew-core fixed this issue; that file is now in $(brew --prefix xhyve)/share/xhyve/test/userboot.so.

You should do the tutorial as before, but with every line starting with USERBOOT=