Today I changed package
eos-rankmirrors to automatically rank the EndeavourOS mirror list (but not the Arch mirror list!) after every update of this package.
If you are OK with the automatic EndeavourOS mirror ranking, then you don’t have to do anything.
But if you have already set up a great
/etc/pacman.d/endeavouros-mirrorlist that you don’t want to change, you can keep your own list by configuring variable
EOS_AUTO_MIRROR_RANKING=no # 'no' to prevent auto ranking