Source maps are a powerful tool for improving the developer experience (DX). In this talk, we will cover the pros and cons of source maps, how to configure them in build tools like Vite, how browser DevTools use them, and a few recent updates about source maps. Jecelyn Yeen is a DevRel engineer at Google working on Chrome DevTools and Browser Automation. Her work focuses on understanding and activating the ecosystem around developer tooling. When she’s not coding (and avocado-ing), she’s jumping into mysterious sea waters in search of narwhals and mermaids.