During December 2025, qkrgydus00 focused on improving startup stability for the continuedev/continue repository by addressing a critical concurrency issue in plugin initialization. Using Kotlin and IntelliJ IDEA plugin development skills, they identified and fixed a bug that caused a ConcurrentModificationException during startup. Their solution ensured that shortcut removal actions executed on the application thread, effectively eliminating race conditions and reducing the risk of crashes during plugin loading. This targeted fix improved the reliability and predictability of the plugin’s startup process. The work demonstrated a solid understanding of concurrency management and contributed to the maintainability of the codebase.