I ported a Python library to Rust. My fuzzer was lying to me.

<p>TL;DR: I ported Python's natsort library to Rust for Port Mortem 2026.</p> <p>Writing the sorting algorithm turned out to be the easy part.</p> <p>The difficult part was

<p>The pitch sounded simple: take a well-known open-source library, port it to a new language, prove it behaves identically. Port Mortem 2026. 72 hours. I worked alone.<br /> At

<p><em>A Port Mortem 2026 write-up about a JavaScript to Rust port, one strange Unicode character, and what green tests do not tell you.</em></p> <p>The first benchmark result was

<h1> My Exit Rule Said '2 Periods' — My Code Was Counting Something Else Entirely </h1> <p>My funding-rate bot has an exit rule that reads like plain English:<br /> </p> <div

<p>There's a joke that every Rust project starts with someone saying "we should rewrite this in Rust" and ends four weekends later with a half-finished repo and a lot of new