Just a quick note that two new lovely coding fonts have joined the family here on CodePen!
Dank Mono by Phil Plückthun
People are lovin' that lowercase f in Dank Mono, plus the ligatures.
Gintronic by Mark Frömberg
As they say, Gintronic is:
designed to not fatigue your eyes while working habitually with code and be a delight as display type. Flavoured with a jovially and non-techy character but nevertheless fully packed with technical characters.