I suppose, but you can only install it via the AUR or nixpkgs on linux, and 2 out of the 4 BSDs no longer have ports. Sure, you can compile from source but when it's that old I consider such a state effectively no longer around
I just said that it comes already installed (because is a required, essential part of the system) in Slackware.
Slackware is a Linux distribution, just as Arch or NixOS.
So, install Slackware, and elvis comes bundled and installed in your Linux.
The package you mention (SCCS) might be offered as a FreeBSD port, maybe, but I'm certain it's not a required part of the system.