During October 2024, Ishaan Srivastava developed build support and HEFFTE integration for the FHDeX codebase in the AMReX-FHD/FHDeX repository, targeting the Frontier supercomputer. He updated the GNUmakefile and associated build scripts to handle Frontier-specific requirements, including module loading, compiler flags, and make commands, ensuring that FFT computations using HEFFTE could run efficiently on this HPC platform. Ishaan’s work leveraged Bash and Makefile expertise, focusing on robust build system design and high-performance computing needs. The changes laid the foundation for large-scale FFT workloads on Frontier, demonstrating depth in adapting scientific software to advanced supercomputing environments.