Production case study: ChromeOS is based on Gentoo. I've also known a couple shops that run Gentoo as their distribution. Usually a central binary package host

Production case study: ChromeOS is based on Gentoo. I've also known a couple shops that run Gentoo as their distribution. Usually a central binary package host / build machine which makes it very easy to have a set of staging hosts. Just test package releases like normal before migrating them to prod.