Quietmarsh complete corresponding source, GPL-3.0-or-later. Copyright unmarked contributors and original Quietmarsh additions2026. model.js likelihood is a scalar translation of src/nll_occu.cpp at c7e2c126fe32c90a36c20a5911cb2d2c5be152a0. Grid integration, fixed synthetic histories, game UI and art are original. All preferred editable sources are bundled: model.js, game.js, index.html, style.css. No build step or dependencies; serve this flat directory with any static HTTP server. No warranty.