One of the things you end up with when you spend too much time reading Hacker News is a folder of very slick monospaced fonts designed for code editors. Are any of these fonts measurably better than whatever’s already installed on your system? Nope! Here’s my list.
Spark by After the Flood
This one is kind of a gimmick, but an incredibly clever one. It translates sequences of characters like 123{30,60,90}456
into spark lines, using some fancy features of the OTF format. See also their source code repository for the project. I haven’t used this nearly enough to tell if it works well in practice, but I will now be on the constant lookout for use cases.