Yeah I agree, but as far as I know, we can't paginate any firebase request.
That means that this feature is not possible unless we load the first 60 entries and show only the 30-60 ones, which is kind of a useless solution :(
As I couldn't find any HackerNews PWA which allowed me to save items for reading them later, I decided to create my own.
I'm aware that it has some flaws (Comments & Ask HN items are not working right now), but I'll add more features if people are interested.
Tech stack: React.js, styled-components, redux, redux-offline and HN Firebase API