A lot of stuff that underpins planet-scale infra is open source and has been for a long time. The general approaches and architectures for it have also been wid

A lot of stuff that underpins planet-scale infra is open source and has been for a long time. The general approaches and architectures for it have also been widely discussed and litigated in the commons so it's not just the code - the specific why is also very well documented. So despite its importance much of it is actually pretty in-distribution.