Using GitHub Pages for hosting is nice. Just enable it in repo settings and optionally set up your own domain.
–Change btwiusearch.net to your host name–
Copy .zst package to x86_64
and run repo-add --new btwiusearch.net.db.tar.gz *.zst -s
for updating DB and signing GPG.
Commit to repo and enable gitlab pages to main branch.
Enable new repo /etc/pacman.conf
[btwiusearch.net]
SigLevel = Optional TrustAll
Server = https://btwiusearch.net/arch_repo/x86_64/