Holden Nelson's various writings

Rust but LISP. Contribute to ThatXliner/rust-but-lisp development by creating an account on GitHub.

The 12-month engineering plan I built six months ago is now irrelevant. Notes on what changes when leadership has to be fullstack.

This is what happens when you get arrested in Japan and where you're sent off to will leave you speechless.

France's parliament just endorsed the one idea every cryptographer on earth has already debunked and they're calling it a compromise.

Here I derive the elimination tree for the (right-looking) sparse Cholesky algorithm for computing A = LL^T for lower triangular L and sparse matrices A. This tree forms the foundation for most sparse factorization software, even when the underlying assumptions…

MacOS Web Server written entirely in ARM64 assembly - imtomt/ymawky

Updates to the Gemini API File Search tool makes building efficient, multimodal file retrieval systems easier for developers.

May 6, 2026 – “Rotten.com was a haunted arcade, dispensing trauma in gumball-machine doses straight to kids with dial-up, who chewed on images never meant for their half-formed stomachs.”

Note for
numberphiles:
all numbers have been rounded to their first significant
digit, because I’m a fan of Rob Eastaway’s
“zequals” method
of getting to the point when it comes to estimation. It’s much
more valuable to walk away with the heuristic “some…

Discover a curated list of peculiar Japanese inventions that add a playful twist to everyday life. Explore the weird and useless yet strangely intriguing creations from Japan.

Millions may qualify for refunds on COVID-era penalties and interest. Learn how to claim yours and why you must act before the July 10, 2026 deadline.

Bambu Labs controversy heats up.

You can take steps to delete it though.

Scientists are increasingly worried that a vast system of ocean circulation, which delivers warmth to northern Europe and impacts climate globally, is at risk of collapse. Mounting evidence suggests it may be nearing a tipping point, though the research is…

The one where I suggest finding the nearest lifeboat

The Telegraph tests out AI-assisted nursing at the – mechanical – hands of a Japanese robot