The homebrew maintainer couldn’t even get hired at Google [2] if I recall, even though they’re big fans of using the tooling internally!
[1] https://arstechnica.com/information-technology/2014/04/tech-... (OpenSSL Software Foundation President Steve Marquess wrote in a blog post last week that OpenSSL typically receives about $2,000 in donations a year and has just one employee who works full time on the open source code.)
[2] https://twitter.com/mxcl/status/608682016205344768 (Google: 90% of our engineers use the software you wrote (Homebrew), but you can’t invert a binary tree on a whiteboard so fuck off.)