Its added to the termux mirrorlist so you should get it automatically soon, if you want to add it manually:
termux-change-repo (part of termux-tools package) can be used to modify sources.
Another way of doing it is by using
apt edit-sources and adding the following lines:
# main deb https://mirror.albony.xyz/termux/termux-main stable main # root deb https://mirror.albony.xyz/termux/termux-root root stable # X11 deb https://mirror.albony.xyz/termux/termux-x11 x11 main
This is also added to the armbian mirrorlist but you can also add it manually by editing the sources.
The mirrors are hosted at Nagpur, India and sync aprox. every 53 minutes from the upstream.