In February 2025, Alex Erberg enhanced artifact serialization in the netflix/metaflow repository by implementing support for pickle protocol 4, using Python to improve storage efficiency and data handling across Metaflow flows. This update reduced artifact footprint and increased data portability, addressing scalability for future persistence needs. Alex validated protocol compatibility and performance within artifact workflows, ensuring robust and efficient serialization. The work also included improvements to code maintainability and documentation, supporting ongoing stability and future enhancements. Throughout the month, Alex focused on Python programming, data serialization, and software development, delivering a targeted feature with careful attention to workflow integration.