GitHub earlier this week launched GitHub Marketplace, featuring apps from more than a dozen integrators, at the GitHub Satellite conference. The platform allows developers to review and purchase new tools that do everything from helping to manage projects, to automating code building, testing code quality, or monitoring the impact of code changes. The marketplace allows developers to start using the tools collected there without setting up multiple accounts or multiple payment methods. Launch partners include Waffle.io, CircleCi and others.