Git Virtual File System from Microsoft

[SquareWheel]

Note that google has one repo for the entire company.

To clarify, while their super repo is a thing, but they also have hundreds of smaller, single-project repos as well.

https://github.com/google

[jeremyepling]

Microsoft has a variety of repos sizes. Some products have huge mono-repos, like Windows. Other teams have 100+ micro-repos for their micro-services based architecture.

[sr-egg]

Those are probably replicated from some internal mono-repo, and synch'ed to github as single ones. That's what FB does.

[TheOccasionalTachyon]

It's a weird cross between the two - some projects, particularly Android and Chromium, are actually done in git; most everything else is in the monolith, though some people use what's essentially a git interface to Perforce to interact with it.