Google has pretty specific needs, so this project may be very successful internally even if it gets zero traction externally. A lot of big software companies d

Google has pretty specific needs, so this project may be very successful internally even if it gets zero traction externally. A lot of big software companies do this nowadays. Google and Facebook both have a lot of purpose-built software, some of which gets released as open source, that meets their needs well but is hard to use for other purposes. I guess it's still strictly better than them not open-sourcing the code, but it's definitely an existence proof that just making something open source doesn't make magic happen.