@ash211 @pwendell, I missed this when the PR was being reviewed, but we need to list the source instructions first. We are first and foremost an Apache project, and need to tell people how to use Apache software to get their work done. Third parties can go ahead and publish binary distributions if they want, but we can't be posting that as the preferred way to install another Apache project. We do the same thing for Hadoop distros -- we say how to build against an Apache release of Hadoop, and then we have a page on building against third-party distros.