During June 2025, Mykola Peleshenko focused on backend development for the Radarr and Sonarr repositories, addressing critical issues in IMDB-ID-based synchronization and import-list processing. He improved data integrity by refining C# logic to ensure IMDB ID comparisons only occurred when both entities had valid identifiers, preventing erroneous deletions and synchronization failures. His targeted bug fixes preserved library entries lacking IMDB IDs, reducing the risk of unintended data loss and enhancing the reliability of library maintenance. By strengthening test coverage around these edge cases, Mykola delivered more robust backend workflows, demonstrating depth in C# and backend engineering within complex media management systems.