Worked on stabilizing the caching layer in the marimo-team/marimo repository by addressing a bug where the LRU cache would reset during cell reruns due to incorrect frame offset handling. The solution involved refining backend logic in Python to ensure cache persistence, which improved notebook reliability and reduced flaky rerun issues. Added regression tests to validate the fix and updated both documentation and test suites to reflect the new caching behavior and API changes. Focused on backend development and testing, the work enhanced developer productivity by making the caching path more robust and aligning the workflow with updated project standards.