Submitted yesterday (https://news.ycombinator.com/item?id=18828050 https://news.ycombinator.com/item?id=18828050), and the day before (https://news.ycombinator.

Submitted yesterday (https://news.ycombinator.com/item?id=18828050 https://news.ycombinator.com/item?id=18828050), and the day before (https://news.ycombinator.com/item?id=18816984 https://news.ycombinator.com/item?id=18816984).