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SurveyJS
Open-Source JSON Form Builder to Create Dynamic Forms Right in Your App. With SurveyJS form UI libraries, you can build and style forms in a fully-integrated drag & drop form builder, render them in your JS app, and store form submission data in any backend, inc. PHP, ASP.NET Core, and Node.js.
One drawback of Astro is that to get the most out of partial hydration I had to write blog posts in Astro. I like MDX because I want easily to be able to put the content on developer platforms like dev.to and Hashnode. Partly for that reason, but mostly for the experience, I wrote a Rust MDX compiler which outputs Astro. I can write blog posts in MDX with the compiler running in watch mode to generate Astro as I type (or more accurately as I save). This makes it easy to create pure Markdown posts for use on other platforms. The other advantage is with Astro still in Beta, if the API changes, it is easy to take advantage of new features by updating the Rust compiler, instead of having to change individual posts.
The Core Web Vitals which are important to Google for ranking are Largest Contentful Paint, First Input Delay and Cumulative Layout Shift. Lighthouse does not measure First Input Delay, though improving Total Blocking Time can improve First Input Delay. The overall performance score is up from 92 to 100. Improvements come from Total Blocking Time dropping from 20 ms to zero as well as Time to Interactive and First Contentful Paint improvements. Largest Contentful Paint is improved albeit by a 0.2 seconds.