May 2026 monthly summary for spack/spack-packages focused on feature delivery and technical execution. Key feature delivered: - VASP OneAPI Integration: Added support for Intel oneAPI in VASP by integrating oneAPI MKL and FFTW libraries with MPI support, expanding compatibility with the Intel oneAPI ecosystem. This work is encapsulated in the commit b46aeb4663a1db671ff49d6cc50fcea73d9e4fc4, with collaboration and sign-off from team members. Major bugs fixed: - No major bug fixes were reported this month. Minor style and formatting refinements were completed to support the integration and maintain code quality. Overall impact and accomplishments: - Broadened VASP hardware and software compatibility by enabling oneAPI-based optimizations and libraries, unlocking potential performance gains for Intel-based systems and simplifying future optimizations. - Delivered through a clean, collaboratively reviewed commit with proper attribution, setting foundation for continued enhancements in the oneAPI ecosystem. Technologies/skills demonstrated: - Intel oneAPI integration (oneAPI MKL, FFTW, MPI) in a large scientific software workflow - Changeset hygiene, code review, and sign-off practices (Co-authored-by, Signed-off-by) - Cross-repo collaboration and feature delivery in open-source packaging context