Now BioArchLinux has the GPG keyring package called bioarchlinux-keyring
and we have our mirrorlist package called bioarchlinux-mirrorlist
.
Now add repository just need to add our repository information to /etc/pacman.conf
and then pacman -Sy && pacman -S bioarchlinux-keyring
then you can use our repository.
You can edit /etc/pacman.d/mirrorlist.bio
to use the mirror you want to use.