Worked on the opennextjs/opennextjs-cloudflare repository to enhance reliability and cache invalidation within the Cloudflare integration. Focused on backend development and database management using TypeScript and SQLite, delivering a targeted bug fix to the BucketCachePurge alarm. Addressed multi-tag DELETE operations by spreading SQLite bindings and normalizing SQL statements, ensuring that stale pages are no longer served after updates. Improved the cache-purge pathway by tightening the drain-loop guard, which reduced the risk of ISR-related cache misses. Prioritized correctness and maintainability, validating the impact on cache invalidation flow and contributing a review-ready patch that improved content freshness and robustness.