Noah Parsons writes systems software, computational physics tooling, and applied policy research from Newcastle, Wyoming. He came to bare-metal programming the way most people do, by getting curious about what actually happens between the power button and the cursor, then refusing to put the question down, and to physics by way of frustration with proprietary commercial tools and services.

NexusOS, the x86-64 reference kernel this book is built around, is the larger of his two flagship technical projects. The other is MechanicsDSL, a multi-target physics compiler built on SymPy that translates a LaTeX-inspired notation for mechanical and field-theoretic systems into executable simulations across a dozen code-generation backends: C++, CUDA, OpenMP, Rust, Julia, Fortran, MATLAB, JavaScript, WebAssembly, Arduino, Unity, and Modelica. MechanicsDSL is published as six PyPI packages (mechanicsdsl-core, -datasets, -notebooks, -unity, -ros2, and -embedded), is MIT-licensed under Zenodo DOI 10.5281/zenodo.17771040, and has been downloaded roughly 17,000 times across 70 countries at the time of writing, with institutional mirror adoption on bandersnatch, Nexus, and devpi. The two projects share a temperament more than a code base, both are attempts to take something that is usually presented as forbidding (a physics derivation, a kernel) and make it small enough to hold in one head.

On the research side, he is at work on an analytical model of energy and information transport in boundary-driven nonequilibrium quantum spin chains, in preparation toward submission. The piece sits in the same neighborhood as condensed-matter transport theory but stays close to closed-form results, which is the kind of physics he most enjoys: tractable enough to argue with on paper, rich enough to keep surprising you.

His applied policy work has appeared in the peer-reviewed Applied Journal of Economics, Law and Governance (a 32-page paper on grid modernization, Volume 1, Issue 2) and in shorter Zenodo-archived briefs on Medicare drug-price negotiation, the October 2025 federal government shutdown, and U.S. industrial competitiveness. In 2025 he served as Director of Civic Innovation at the American Forge Institute, since dissolved. Recognition for the broader body of work includes First Place in Engineering and Mathematics at the High Plains Regional Science and Engineering Fair, the Citadel Securities Innovation Prize, the Naval Science Award from the Office of Naval Research, and an Air Force Certificate of Achievement from AFRL, along with an invitation to the NASA STEM Engagement Mars Mission program.

Find him at github.com/GuiloScion and ORCID 0009-0000-7224-6040. NexusOS, MechanicsDSL, and the source for every listing in this book are MIT-licensed; issues, pull requests, and inquiries are welcome.