This post discusses the benefits of running end-to-end UI tests for each pull request (PR) in mobile app development. It explains how testing at every PR can help identify major issues earlier, validate external dependencies, and increase developers' confidence in release quality. The article also provides guidance on choosing the right tests for an efficient pipeline and setting up a Jenkins job to run for each Github PR. By implementing this approach, teams can improve overall release quality by catching and fixing issues before they reach production.