I came across FiraCode today. It calls itself a “monospaced font with programming ligatures”. What that means is when you install this font and configure you text editor correctly, it will render things like
:= as a single token. In theory this makes it easier to read code, because you don’t have to read two characters for a single token.
Whether or not it actually makes it easier to read code remains to be seen. I’ve installed the font on my machine and configured iTerm and VS Code to use the font, so I’ll give it a try for a few weeks and see if I notice any difference.