I built this several months ago as I was interested to see how the titles of posts evolve/change on HN. It turns out lots of titles are edited every day (in both subjectively and objectively good and bad ways!) and I've found it interesting to see how titles have evolved.
The whole thing is automated and is built around a Ruby script that pulls down the titles on the front page at a frequent interval. Any titles for specific story IDs that change get tracked and rendered out to a static HTML page hosted on Netlify. It runs by itself without incident so far.
This has been on Show HN before but I was kindly invited by dang to repost it.