I've been reading about that myself...There are people trying to build an alternative init system for NixOS, looks like that effort is a long battle. FreeBSD could be a very hit or miss prospect for me, as I'd need to confirm the hardware support before making the jump. I have a 2021 PC, my general hardware would be supported in theory...The NVIDIA and Wayland support would make or break my choice, as I don't want to use smelly X11. It's time to move on from that antiquated display server.