Why do some people like Emacs why others like Vim? These Unixes just don't have an `/etc/profile.d/` directory where the main `/etc/profile` will look for individual environment startup scripts.

TBH it might make the most sense to just skip rendering the `/etc/profile.d/chruby.sh` file and source the main chruby script in `~/.bashrc.d/chruby-default.sh`.