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1. fontlex fontlex Public

   Compile math typesetting, Markdown rendering, and syntax highlighting into OpenType fonts. No JavaScript at runtime.

   HTML

2. iccnet iccnet Public

   A neural network inside an ICC color profile: PNGs of coordinates that unmodified color engines (ImageMagick, LittleCMS, sharp) paint as paintings

   Python

3. fenet fenet Public

   A handwritten-digit recognizer that runs inside SVG filters, no JavaScript

   HTML

4. tokcpu tokcpu Public

   A stock Hugging Face tokenizer that runs Brainfuck: one encode and one decode per clock tick

   Python

5. rexsum rexsum Public

   Compiles checksums (Luhn, IBAN, ISBN, VIN and more) into HTML pattern regexes, so forms check them with no JavaScript

   HTML

6. cssynth cssynth Public

   Compile flat images into short HTML/CSS for CSSBattle. Shorter than the human solutions on 56 of 66 targets, all at a 99%+ pixel match.

   HTML