miniblog.

I feel like in-code docs are an underexplored design space. Do you use comments or string literals? Before the function (e.g. JSDoc) or inside it (e.g. Python)? Which is best? Which is the easiest to write, has the easiest tooling, or the most readable (code/HTML) artifacts?

I feel like enums/variants/tagged unions are underexplored in dynamically typed languages. As soon as you see a pattern match for a given enum variant (e.g. colour::RED), your can IDE can be helpful if the enum definition changes. Normally I only get this with static typing.

I really value builds, lints and coverage metrics on pull requests. This still feels like an underexplored area though. There's no Travis equivalent AFAIK for performance. I'd love to have automatic benchmarking on contributions.