I have one dedicated server with quite large nvme hard drives, but relatively poor resources - (1.2tb in mirrored raid, but only 32g of ram). I decided to make use of free storage and bandwidth and setup some mirror servers.
archlinux @ mirror.sfinae.tech
I find archlinux a relatively stable rolling release linux distribution. I am using it continuously on a few machines (thinkpad x200 and other old lenovo laptop). I setup mirror of packages, repositories and iso images of this distributions. You can check it status here: https://www.archlinux.org/mirrors/sfinae.tech/