Credits and licences
Chawso tools use open-source work. This page names it and links the licence texts. Notices a licence requires to stay with the code remain in each tool's files.
Arcade (games.chawso.com)
The engine and the games Balote, Stari Most, Rooftop Laundry, Tie-Break and Mini Ramp come from Pixel Plays by Amir Mushich (MIT licence). Concept by abhi. The other games, the catalogue and the changes were written for chawso.com on top of that engine under the same MIT terms. The original game music is not included. MIT licence text.
Diff (diff.chawso.com)
Uses jsdiff 8.0.4 by Kevin Decker (BSD-3-Clause), shipped as vendor/diff-8.0.4.js with its licence file in the Diff tool. BSD-3-Clause text.
Fonts
Space Grotesk, Inter and IBM Plex Mono, each under the SIL Open Font License 1.1. chawso.com uses Space Grotesk and Inter; Clean, Diff and Images also use IBM Plex Mono. Space Grotesk, Inter, IBM Plex Mono.
Forecast Lab (predict.chawso.com, in development)
Forecast Lab is an experiment and its sources change. Its own page and technical notes are the current record. In summary it uses TimesFM 2.5 (Apache License 2.0), NASA POWER weather data, Wikimedia pageviews, international football results by martj42 (CC0) and market price data. Earlier archived weather issues used Open-Meteo archive data (CC BY 4.0), transformed by Chawso. Terms for some sources, such as market price data, have not been checked for this page, so this list is not a complete licence inventory.
X-Ray Mirror (prototype)
Anatomy models: BodyParts3D, Copyright (c) 2008 Life Science Integrated Database Center, licensed under CC Attribution-Share Alike 2.1 Japan (source: lifesciencedb.jp/bp3d); meshes were merged and compressed for web display and are shared under the same licence. Also uses Google MediaPipe Tasks (Apache License 2.0) and three.js (MIT), loaded at runtime from jsDelivr and Google storage (the model files are not redistributed by this site). The prototype keeps its own notice file and on-page credit.