Is 11ty actually a JavaScript framework? - https://www.youtube.com/watch?v=0av40V5cwcQ - David east showing how to create components in 11ty with nunjucks shortcodes and web components (sync for passing props, async for fetching data)
Shortcodes:
https://github.com/adamduncan/eleventy-shortcomps - examples of 11ty components created via shortcodes