Dima Eromin worked on the vikejs/vike repository, focusing on backend and API development using TypeScript. During the month, Dima addressed a critical issue in HTTP caching by refining the getCacheControl logic to prevent caching of 5xx server error responses. This change ensures that clients do not receive stale or incorrect data after server-side failures, improving the reliability and consistency of gateway behavior. By isolating and resolving this edge case, Dima enhanced the correctness of cache-control semantics, aligning with best practices for stable performance. The work demonstrated careful debugging and a strong understanding of backend reliability requirements.