For clarity, the author did say in another comment that for Windows they plan to implement system API calls to watch files instead of manually scanning the filesystem. For macOS and linux it is listening to OS events.
after a little digging it looks like a custom font called 'Simple Console', though it's not available anywhere I can find other than through the website (which states it's licensed only for use on their website, not for download or use on other sites)
Hey I'm the author. Yes, as far as I know it's just sugar for opening a socket, and there's almost never a file that exists. To treat it as a file, you need to assign a file descriptor to it, which you can then read and write from.
Hey I'm the author. Yeah, I stumbled on this while doing a little research into zsh socket capabilities, but I decided to exclude it because the post was more about network sockets than Unix domain sockets.
Hi I'm the author! Yes, I wrote this code quite quickly and when I originally posted this on reddit someone pointed out my mistake. The more you know, I suppose.