(disclosure: I was on the "Ignition team" for SF)
One of these days I should blog about how we ended up hosting Python for years...
People forget that in the olden days we used Subversion and Bazaar (well, the latter if you were Canonical-adjacent), and before that CVS.
And before that, SCCS.
Going back decades, it's all people going "this sucks, I'm writing my own VCS", and for whatever reason Git was the one that gained traction in that particularly sticky and slippery swamp.
IMHO, we made better gear at the time, but we were not in a market as wide and deep for linux optimized machines as it is now. It's not an unusual story in the valley. We did have a deep talent bench that ended up in key roles in a bunch of firms that are doing well: Google, Apple, et al.