During January 2026, Pityjllk focused on backend stability for the near/nearcore repository, addressing a critical issue in receipt processing. They enhanced the get_receipt_receiver function to correctly handle YieldCreate actions, which enabled proper promise chaining and reduced runtime panics in asynchronous flows. This work involved deep integration with Rust’s asynchronous features and careful adjustment of mock_external.rs to align test mocks with real-world promise semantics. By improving the reliability of promise_batch_then flows, Pityjllk strengthened the resilience of test infrastructure. The solution was collaboratively developed, code reviewed, and merged, demonstrating proficiency in Rust and backend development within complex distributed systems.