alt Hacker NewsA server is needed to calculate the sun's position from latitude + longitude + time, and then render the gradient. I could use HTML templating in some other language/framework, but I used Astro because that's what I'm familiar with and it's very easy to deploy to Cloudflare Pages.
it's beautiful. btw, could this be all done in client side js? didnt look at the implementation, probably server is used to resolve location?