Credits

This site uses no outside pictures. The duck logo and the diagrams are our own, and the typeface comes from an open collection.

Everything we did not make, with its licence

IBM Plex Sans and IBM Plex Mono The typefaces, by Mike Abbink and Bold Monday for IBM, under the SIL Open Font License 1.1. The font files are served from this site, and the licence is in IBM-Plex-OFL.txt.