During December 2024, Sergi Avila Fernandez developed Electron stack trace parsing for the DataDog/browser-sdk repository, focusing on improving error diagnostics for Electron applications. He introduced support for the Electron schema by updating regular expressions and adding an ELECTRON constant, enabling accurate normalization of Electron-specific file paths. Sergi expanded test coverage for the computeStackTrace function to ensure reliability when handling Electron stack traces, leveraging TypeScript and advanced error handling techniques. His work addressed the challenge of parsing Electron stack traces, resulting in more precise error reporting and faster debugging workflows. The depth of implementation demonstrated strong skills in testing and stack trace parsing.