Do Not Mistake For Production Code.
A gathering of things I've played around with while exploring ideas, stripped down into more-or-less working examples so that future me (or you!) might have an easier time getting past the fiddly bits.
Completely unlicensed, unwarrantied, largely unmaintained, use-at-your-own-riskware.
The npm related parts accumlate security advisories from GithHub on a regular basis,
so play it safe and keep your distance from those.