Railway-Oriented Programming

Some related discussions on the topic, but not on this submission itself:

https://news.ycombinator.com/item?id=37171943 - 2023, 169 comments

https://news.ycombinator.com/item?id=17337155 - 2018, 160 comments

https://news.ycombinator.com/item?id=11955917 - 2016, 57 comments