This is a "reader mode as a service" just like the Reader View in Firefox/Safari, but with a focus on beautiful typography, it works across all browsers and it provides shareable links (without the need of extensions)

It's very basic, but it can be used to read articles on older devices such as old eBook readers and it could also make content more accessible in regions with low bandwidth or while travelling.

It's available here: https://readable.shuttleapp.rs/

The tutorial on how it was built is available here: https://endler.dev/2022/readable/

(credits to Matthias Endler)