X open sourced their algorithm
Explains X's Home Mixer, Thunder, and Phoenix pipeline in plain English.

Anti-algorithm news feed manifesto, but lacks a working submission mechanism or active feed.
Hacker News readers, open source advocates
Lobsters · Hacker News
Explains X's Home Mixer, Thunder, and Phoenix pipeline in plain English.
Live ML visualization of X's algorithm, but replicated behavior lacks ground truth.
TrueSkill beats ELO by modeling uncertainty, cuts O(N²) comparisons to O(N) with sequential elimination.
Fun community ranking, but HotOrNot for LEGOs isn't a new idea.
Landing page is a 403 error, so there's nothing to evaluate.
Files are single-purpose and readable: each algorithm comes with docstrings, type hints, complexity notes and runnable examples so you can read, test, or pip-install bits immediately. It isn't breaking new ground — algorithm collections are common — but the focus on clarity, tests, and a tiny surface API (merge_sort, BinaryHeap, dijkstra, etc.) makes this a reliable reference and teaching aid.