I don’t write code as my full time job, but I tinker a bit and read some too. I switched over to using Input about a year ago. Best part, it’s free for personal use. Give it a try.
Source: Input: Fonts for Code
My Industrial Design education afforded me the opportunity to use (and own) a great number of beautiful and esoteric tools. While i never had this tool (it’s not intended for industrial designers), I find it to be beautiful. I wonder if my grandfather, who was a draftsman, might have used this or something similar.