Worked on improving the reliability of the sveltejs/kit server lifecycle by addressing a recurring startup failure scenario. Using Node.js and JavaScript, implemented a pre-restart cleanup process that removes stale socket files, preventing EADDRINUSE errors when a leftover SOCKET_PATH exists after crashes or shutdowns. This solution mirrored an established approach from sveltekit-adapter-deno, promoting consistency and cross-repository reuse. The patch reduced downtime and startup errors in both staging and production environments. Included a detailed test plan and guidance for linting and test execution in the pull request, demonstrating a methodical approach to backend development and code quality assurance.