In a recent customer video, the mobile team at Vestiaire Collective discussed their experience switching from Jenkins to Bitrise and the benefits they've gained, including saving time to focus on improving their app for millions of users. Shifting to a mobile-first approach required taking mobile seriously, with the company now prioritizing iOS and Android applications over its web-based business model. Stable, transparent Continuous Integration (CI) is essential for improving developer experience, allowing the team to easily set up and change pipelines and iterate on development pipelines without affecting production. Using next-generation machines accelerated build times by 50%, while implementing analytics and monitoring tools helps optimize pipeline performance. Finally, secure and flexible tools are necessary to scale the app, with Bitrise providing the flexibility and scalability required to support a growing team and international expansion.