Where Did Arch Linux Come From ?
"When mommy Debian and Ubuntu daddy love each other so much..."
CRUX inspired Judd Vinet to create Arch. Judd Vinet built Arch from scratch, and then wrote pacman in C. Historically, Arch was sometimes humorously described simply as "Linux, with a nice package manager."
https://wiki.archlinux.org/title/Arch_compared_to_other_distributions
That's pretty much all you need to know ig.