Third-party notices

ClockGrapher includes open-source software. The installer carries the complete notices file, with every component, its version and its licence text, and the app shows it under About. This page is a summary and is being finalised before the beta opens.

This website's registration form uses the ALTCHA widget (altcha 2.3.0, MIT licence, Copyright (c) 2023 Daniel Regeci, BAU Software s.r.o.), served from this site. Its licence text is at /vendor/altcha-LICENSE.txt. It makes no requests to other servers.

Most components are under permissive licences (MIT, BSD, Apache-2.0, PSF-2.0, and similar). Three components are under the LGPL: pystray (LGPL-3.0), python-xlib (LGPL-2.1 or later, Linux only) and libquadmath (LGPL-2.1 or later, a separate shared library inside the numpy and scipy wheels). See the LGPL source offer.