We had a bunch of code at work that everyone sort of begrudgingly used that I wrote almost 20 years ago, not knowing too much about what I was doing. I have rec

We had a bunch of code at work that everyone sort of begrudgingly used that I wrote almost 20 years ago, not knowing too much about what I was doing. I have recently rewritten it – about 100kLOC of messy C++ turned into 25kLOC of bliss. The test coverage we had ensured that we didn’t have to worry about anything breaking. I hate myself a bit less :)