I have written this site in Astro using their official blogpost template but modified the styling and various things a bit.

Astro is pretty cool, you can add javascript inbetween markdown with MDX support, and that javascript can call Svelte or React components through Astro.
Their use of view transition API also makes transition between different pages super seamless.

Here is a counter in Svelte rendered in MDX as an astro component: