This is like a love song to Unix. It's not new but I just found it.
https://eerielinux.wordpress.com/2021/01/24/multi-os-pxe-booting-from-freebsd-12-introduction-pt-1/
This is like a live song to Unix. It's not new but I just found it.
https://eerielinux.wordpress.com/2021/01/24/multi-os-pxe-booting-from-freebsd-12-introduction-pt-1/