Here is a test block for playing with p5.js. Also, to begin making the case for why plaintext and Markdown can be so powerful.
http://blockbuilder.org/SammeSheikh/76cafcb8aa94f26f4593ce8fb4d69460

Here is an example of real-time text editing (code, documentation) through commonly available client-side software in combination with freely available server-side services (storage, distribution) to generate open, modifiable, platform-independent, reproducible "applications". And in doing so participating in the gamut of private and public (and more importantly, combinations thereof!) entities that make the web happen. Also, railroads!
.blockREADME.mdindex.htmlsketch.jshttp://blockbuilder.org/[your github username]/[your gist id]Built with blockbuilder.org
forked from bulbil's block: test-block
forked from SammeSheikh's block: test-block
forked from anonymous's block: test-block
forked from anonymous's block: test-block
https://cdnjs.cloudflare.com/ajax/libs/p5.js/0.5.14/p5.js