Developed an enhanced FST writer API for the antmicro/verilator repository, focusing on scalable data writing for hardware simulation workloads. The work centered on enabling variable data handling and integrating compression techniques to improve throughput and scalability when managing large datasets. Using C++ as the primary language, the developer introduced new headers, data structures, and methods to efficiently write and manage variable data. The technical approach emphasized robust API design and careful integration planning, supporting more efficient file I/O management and software architecture. The month’s efforts were dedicated to feature delivery, with no major bug fixes, ensuring readiness for broader adoption.