What's the best gem you've found on Hacker News?

https://news.ycombinator.com/item?id=32334552

https://news.ycombinator.com/item?id=12778836

https://news.ycombinator.com/item?id=30782994

https://news.ycombinator.com/item?id=12111597

https://news.ycombinator.com/item?id=39034160

https://news.ycombinator.com/item?id=39665090

https://news.ycombinator.com/item?id=40711107

https://news.ycombinator.com/item?id=23124417

I got a collection for my boring Friday.

“The Time I Built an ROV to Solve Missing Person Cases”

https://news.ycombinator.com/item?id=40623864

If you're not already familiar with it, dang keeps a nice list of HN gems here: https://news.ycombinator.com/highlights

https://news.ycombinator.com/item?id=44422407

My future self.