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Articles & Notes
Thoughts on high-performance compilers, innovation economics, research methodologies, and systems engineering.
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Why I Built fereg: reghdfe and fixest Results in a Fraction of the Time
reghdfe is the standard for fixed-effects regressions in Stata, but it is slow on large panels, and fixest and pyfixest give slightly different numbers. fereg is one Rust engine with Stata, R and Python front ends that reproduce reghdfe, fixest and pyfixest, and run 3 to 100 times faster.
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Why I Built TeXres: Modernizing TeX While Waiting for Typst
Typst is the future of typesetting, but academic journals and arXiv still mandate legacy LaTeX. Here is why we had to build a pure-Rust engine to eliminate TeX's auxiliary file clutter, cryptic error dumps, and 40-year build bottlenecks today.
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