I did not have a very good first experience with cosmopolitan. I followed the examples, made a very basic hello world type app, and it consistently crashed.

I know it does work but my experience definitely turned me off to it. A polyglot binary seemed like a bad idea in retrospect. This was back when cosmopolitan was first announced so I assume it's better now.

Redbean is indeed so cool.

I always wanted to do something using Janet in the same way with images and compile-time programming. Fun possibilities.

https://janet.guide/compilation-and-imagination/