E-peen tiem

What's the best program you've ever made?
Both in terms of quality and complexity.
Personally, I've made a basic cli calculator with some trigonometric functions included.

The biggest programs I've written were commercial, but I'm not very proud of them: they had to be hacked up to incorporate whatever was needed at the time, but they do work as intended.

I'm writing something for myself now, and I'm much more happy with the code I'm writing. It's a ``smart'' RCE toolkit.