Yeah I used it for this one via Babel from a CDN but it felt pretty crufty: https://tools.simonwillison.net/box-shadow

Yes, I guess it would start showing advantage for complex ones.

The idea is interesting, shame there is nothing for full stack like this, something like opinionated fossil-scm setup - which already has project management built in (for llm to use for its dev progress); together with backend and runtime state squashed inside single sqlite so you can create/delete them independently without a fuss.