Code migration isn't just a technical task, it's a minefield. In this episode, we dive into a real-world code migration story from Slack that uncovered terrifying truths lurking deep in the system. From multi-user duplication chaos to security incidents hiding in plain sight, this is code migration at its most high-stakes. You'll hear how Slack's "Storm Chasers" team tackled six massive code migration prongs, rewrote critical data models, and avoided taking down the entire platform, all while operating at enterprise scale. If you've ever touched a legacy system, dealt with user provisioning, or tried to clean up a years-old data mess, this is your masterclass in what code migration really looks like. Whether you're a staff engineer, EM, or just trying to survive your company's next code migration, don't miss this. Get Tern Stories in your inbox: https://tern.sh/youtube Connect with Sarah:   linkedin.com/sarah-mann-14758844