The case where SQL started saying "no matches found" just because one anonymous receipt was mixed in.

Hello, it's Udon. 🍜I'm looking for customers who haven't ordered yet in the udon shop's database. This is to send them a ...

Recreating the real world in 3D with public data, the open-source map 'Cartopolis' where you can walk and interact, and more - 2026-09-27 Hacker News Roundup

Solving the 'Lunar Terminator Paradox' where the bright side of the moon points upward after sunsetPublished: ...