Worked on stabilizing distributed replication within the AI-Hypercomputer/maxtext repository, focusing on improving cross-node reliability in multi-node deployments. Addressed a critical bug in replication peer assignment by refactoring the logic to ensure correct inter-node communication and data consistency. Introduced distributed ID mappings to standardize identifiers across nodes, which reduced mapping errors and simplified coordination. Adjusted peer rank calculations to enhance replication decision-making and data routing between nodes. Leveraged expertise in distributed systems, JAX, and TPU environments, applying Python to implement these changes. The work provided a more reliable foundation for scalable replication in production distributed computing environments.