During April 2026, contributed to the keiyoushi/extensions-source repository by implementing decryption support for the AllManga API’s encrypted page data. Addressed an API update that introduced AES-256-GCM encrypted payloads, restoring chapter page loading and maintaining user experience. The solution involved end-to-end handling of encrypted responses, specifically decrypting the tobeparsed field to ensure reliable content rendering. Leveraged Kotlin for Android development, applying cryptography and API integration skills to stabilize the extension against future schema changes. This work reduced manual intervention and support overhead, aligning with business goals of consistent accessibility and minimal disruption for users following backend updates.