xAI open-sourced their ranker. It doesn't compile. (opens in new tab)

On 2026-05-15, xAI pushed an update to xai-org/x-algorithm — the recommender behind X's For You feed. Three years after Twitter's original 2023 release, under different leadership. I cloned it and ran analysis on it. The released code does not compile. What's missing There's no Cargo.toml anywhere in the repo. The Rust crates reference crate::params::FAVORITE_WEIGHT, crate::params::REPORT_WEIGHT, crate::params::OON_WEIGHT_FACTOR — sixty-plus named symbols — but crate::params is not in the tre...