The Frontend Developer Experience team at Datadog aimed to improve the lives of 300 frontend engineers by addressing pain points such as difficult-to-maintain acceptance tests. They identified flaky and hard-to-implement acceptance tests using Puppeteer, which were a significant challenge due to their complexity and maintenance requirements. The team decided to use Synthetic Monitoring, a product that allows recording page interactions without manual scripting, to replace the old approach. To implement this change, they created a CLI runner called `synthetics-ci` and generalized it into `datadog-ci`, which enables users to execute commands with Datadog from within CI/CD scripts. The team drove adoption through trust, information, and tooling by writing documentation, holding presentations, and working with specific teams to implement new tests. They also implemented a non-blocking job in their CI/CD pipeline to build trust among engineers without impacting the entire workflow. Through this migration process, which took over a year, the team improved one of their products, learned how to work together better, and created tools that serve the frontend community's needs.