hextris - complete corresponding source of the build published by Spare (https://spare.cool/works/hextris)

upstream-3f4847d/      the unmodified upstream repository at commit 3f4847dc8fd7dab3d1c87e6324b9159d92fbd396
                   (https://github.com/Hextris/hextris.git)
spare-build/        the files Spare serves and packs (a subset of upstream plus Spare's changes);
                   this is the preferred form for modification - no build step is used
spare-changes.diff  unified diff of every file Spare changed or added, against upstream-3f4847d/
spare-build/SPARE-CHANGES.md  what was changed and why

Licence: see upstream-3f4847d/LICENSE* (unchanged). Spare's modifications are released under the same licence.
