[NavinF]

Decorating the commit history calendar has been around since forever: https://github.com/gelstudios/gitfiti

Fake code generators have been around since forever: https://hackertyper.net/

Combining them seems like the logical next step.

[michaelsshaw]

HackerTyper isn't a generator, but is actually from the Linux kernel. It's kernel/groups.c, but just a really old version.

[amyjess]

This would explain why I've seen groups.c code pop up in various TV shows as filler when someone is writing code on the fly.