To use this repo on your site, add the following lines to your pacman.conf:
[amylum] SigLevel = Required Server = https://repo.scrtybybscrty.org
You'll need to add the repo's GPG key to pacman's keyring so that pacman can verify the package and repo signatures.
pacman-key --recv-key 917CA18E2FDC46C33094B4B7030CB6B34D642144 pacman-key --lsign 917CA18E2FDC46C33094B4B7030CB6B34D642144
Here are a couple places you can use to verify the above key:
This repo is build and served by these open source repos