During December 2024, this developer enhanced the Shopify/profiler repository by implementing a memory profiling feature that displays malloc heap size data within GCMajor marker tooltips. The work focused on improving observability of memory allocations during garbage collection cycles, supporting more effective performance tuning and memory management in production environments. Using JavaScript and React, the developer updated the GCMarker component, expanded type definitions, and introduced targeted tests to ensure the accuracy and reliability of the new data. This contribution emphasized front end development and testing practices, delivering granular visibility into memory usage to facilitate ongoing optimization across deployments.