[slantyyz]

You can do some interesting non-code things with CodeMirror.

HyperMD[0] is probably the craziest (in a good way) thing I've seen done with CodeMirror.

[0] https://laobubu.net/HyperMD/#./docs/zh-CN/README.md and https://github.com/laobubu/HyperMD