Worked on stability and compatibility improvements for open source JavaScript tooling, focusing on bug fixes in both the sveltejs/vite-plugin-svelte and prisma/prisma repositories. Addressed script language tag parsing in vite-plugin-svelte by aligning regular expressions with the Svelte compiler, resolving issues with multi-line attributes and complex tag structures to enhance parsing reliability. In the prisma/prisma project, fixed a generator hang in the Bun environment by refining output handling to avoid ANSI escape codes and ensure clean JSON emission. Utilized JavaScript, TypeScript, and Node.js, demonstrating attention to detail in backend development, build tools, and plugin maintenance for robust developer experiences.