Upstream: https://github.com/Hextris/hextris Commit: 3f4847dc8fd7dab3d1c87e6324b9159d92fbd396 Adapted by Scotland AI, 20 September 2026. Original copyright and licence retained. Changes: local-only hosting, compact mobile layout, isolated input and feedback pause, namespaced saves. No ads or analytics. Hextris and these modifications: GPL-3.0-or-later. Source archive includes all served game files; no build is required. Open index.html using a static HTTP server. Device bests persist; games start fresh. Removed executable save-state deserialization, upstream ads/tracking, and remote score submission. Added pause message gate, storage fallback, accessible controls and capped frame delta. Original bundled fonts/dependencies retain their own licences.