Can't execute 'groupadd' error on Linux

Hello. I’ve been testing Nix install (the package manager) on multiple different Linux distros, and I’ve run into the same issue on multiple different ones. Mainly, this one right here: env: can't execute 'groupadd': No such file or directory This issue comes up, and the Nix install just comes to a halt right there. I am using the multi-user install setup for Nix. I’m wondering, how do I fix this issue? I’ve noticed that on the multiple Linux distros, there’s an “addgroup” command, but not a ...