[Sohcahtoa82]

> I thought something along the lines of hackertyper. Something that looks like real code, but isn't.

Hackertyper is absolutely using real code.

Specifically, it's using groups.c from the Linux kernel:

https://github.com/torvalds/linux/blob/master/kernel/groups....

Compare that to the code used by Hackertyper:

http://hackertyper.com/code.txt