yeah, i saw that, a guy try to implement S6 on Artix (courage).
it may be possible at some point that an obarun package may be replace by an aur package
yeah, sure you broke your system. For a same name pacman will install the first one found at the top of the repo declaration in your pacman.conf, but if you use AUR on automatic way....
What is, was, s6-linux-init and what happens if it is still installed in a current system?
The installation of this package should not interfere with 66, the use of this package break all the things. S6-linux-init-system is replaced by a combination of 66-boot and 66-scandir.
Some huge difference exist between 66-boot and s6-linux-init program coming from s6-linux-init. That's why you don't see any s6-linux-init package on official Obarun repositories.