Wait... only 21TB? I have a 20TB disk (two 10TB disks in a RAID) which I got a couple years ago with the first three paychecks of my first ever job.
So basically... almost everyone could store aall of this data with a bit of money saving! I would have guessed there to be much more...
Do these 21TB include all the repository histories, issues, releases, etc?
the more amazing thing to me is the idea that you can fit github on less than $500 in external drives. curious now about creating an all-of-github local mirror, could be a fun project.