mingyizhao

That team has some uncommon testing and deployment requirements, and they don't really run a service, so their use of Piper makes some sense to me. Although I agree it's still very weird. They are trying to migrate right now.

Google's source code system isn't only used to store config: some teams also use it to store data like ML models. There's a limit on the max file size, causing all sorts of trouble in the LLM era. So it's a bit like Git LFS, but worse (why have the limit at all?).