Comment by phendrenad2

Part of the genius of FAANG is being big enough to do it all yourself. Want to make your aging PHP codebase faster? Just write your own PHP JIT (twice!!). Want to do RPC? Just invent your own protocol. Want servers? Just design your own chips. The list goes on and on. If you aren't FAANG, you suffer what you must at the hands of the open-source ecosystem. (Note that most things that FAANG invents are never open-sourced, or someone open-sources a knockoff of it, such as Google's Borg vs Kubernetes).