This is not runit related. Why was it moved here?
Add the Arch Community repo to /etc/pacman.conf as others have stated. See excerpt from my /etc/pacman.conf below if you can't sort that out on your own...
Once you've done that, install yay:
sudo pacman -Syu git base-devel
git clone https://aur.archlinux.org/yay.git
cd yay
makepkg -si
Poof, now you have yay.
yay discord
It gets obvious from there...
It would be nice if they were already in there, but commented, and all one had to do was uncomment them... Would have made this transition smoother...
P.S. Discord is run by degenerates. You really shouldn't use it.
This is what the repo section of my pacman.conf looks like. You may want to copy it, or not...
# The gremlins repositories are disabled by default. To enable, uncomment the
# repo name header and Include lines. You can add preferred servers immediately
# after the header, and they will be used before the default mirrors.
#ARTIX
#[gremlins]
#Include = /etc/pacman.d/mirrorlist
[system]
Include = /etc/pacman.d/mirrorlist
[world]
Include = /etc/pacman.d/mirrorlist
#[galaxy-gremlins]
#Include = /etc/pacman.d/mirrorlist
[galaxy]
Include = /etc/pacman.d/mirrorlist
[universe]
Server = https://universe.artixlinux.org/x86_64
Server = https://mirror1.artixlinux.org/universe/x86_64
Server = https://mirror.pascalpuffke.de/artix-universe/x86_64
Server = https://artixlinux.qontinuum.space:4443/universe/os/x86_64
# If you want to run 32 bit applications on your x86_64 system,
# enable the lib32 repositories as required here.
#[lib32-gremlins]
#Include = /etc/pacman.d/mirrorlist
#[lib32]
#Include = /etc/pacman.d/mirrorlist
#ARCHLINUX
[extra]
Include = /etc/pacman.d/mirrorlist-arch
[community]
Include = /etc/pacman.d/mirrorlist-arch
#[multilib]
#Include = /etc/pacman.d/mirrorlist-arch