Yeah, I've been eyeing Astro, and wondering whether I like it or Eleventy more. What worries me about Astro is that its internals must be very complex, since it's trying to support all the component frameworks and libraries out there. As a result, I heard some complaints about unaccountable problems with my favorite component library, Lit. I am also very surprised that the choice between SSG and SSR mode in Astro seems to be all-or-nothing, rather than a configuration that would allow SSG-ing some pages and SSR-ing others.

But yeah, its syntax, with an out-of-the-box support of typescript, looks more enticing than Eleventy's nunjucks or webc, or its serverless plugin. Good to know that Astro doesn't prerender all pages in dev mode either.