I made a little website with a server that collects only HN submissions with > 500 upvotes chronologically.
It's quite simple because I wanted to learn from the project. But I think it's useful, to get a summary of what was important over the last days.
The UI is almost identical to the HN frontpage, you can click on the comments to view the thread and on the username to see the profile. The rest of the cards takes you to the submitted URL.