Shadertoy + web fonts idea which was stuck in my head for a long, long time and finally thanks to sickness I found some time to build it. The first version
Uses opentype.js and Three to generate the geometry from a font and then allows exporting standalone pure webgl2 with webgl fallback in self-contained HTML. Complete exported file takes only around 9kb - 50kb+ when gzipped depending on font and shaders complexity.
Exactly 10 years ago I made fontsforweb.com + Wordpress plugin(0.5 million downloads) and Fonted project is using fonts browser recycled from the plugin.
Feel free to make accounts and add your shaders but data may be lost due to constant changes