[3princip]

>Build a compelling web experience that can be delivered in 10KB and works without JavaScript.

It's difficult to imagine what such an experience would contain, CSS animation trickery?

I'm very pro minimal UI code, my last hobby project didn't include any framework libraries and the front-end came in at 23kb including images, CSS, HTML and JS.

But without a back-end, and without JS (no SPAs), is this just a contest to build the best looking static page?

[ewindisch]

Reading through, it seems that JS is allowed, but the page needs to be functional without it. Ideally, the page would work with Lynx.

[callumlocke]

Looks like the 10KB can include a back end: https://a-k-apart.com/faq#stack

[aarongustafson]

You can use a back-end in Python, Node, PHP, or .NET Core. The size of your back-end doesn’t factor in, just the markup, CSS & JS you deliver.