Stockfish 19 Lite single-threaded WebAssembly engine
Package: stockfish@19.0.1 (npm), upstream tag v19.0.1
Author: Stockfish contributors and Nathan Rugg
License: GPL v3, see STOCKFISH-LICENSE.txt
Unmodified JS and WASM from the official npm tarball.
Corresponding upstream source: stockfish-js-v19.0.1-source.tar.gz
https://github.com/nmrugg/stockfish.js/releases/tag/v19.0.1
Neural network reference and build instructions are in that source.

The local browser engine uses the small Lite network. Published benchmark
runs use the full native Stockfish 19 engine, not this Lite build.
