Enable Arch Extra repository in Artix

Artix Linux is mostly Arch Linux, minus systemd of course, and plus packages that replace it's absence.

In order to access packages that may not be available via Artix, it's possible to add the Arch Linux Extra Mirror.

pacman -S artix-archlinux-support
wget https://archlinux.org/mirrorlist/all/ -O /etc/pacman.d/mirrorlist-arch

Edit /etc/pacman.conf and activate the mirror.

[extra]
Include = /etc/pacman.d/mirrorlist-arch

Populate the Arch Linux keyring and synchronize the repository

pacman-key --populate archlinux
pacman -Syu