For the past year or so, whenever I write a bit of code that is slightly faster than the last time I did that same thing, I write it down in this little program's memory.

Now, I always run this program over everything I do, and it tells me how I've previously made that same thing faster before.

It's kindda neat, it catches all sorts of things.

https://git.sr.ht/~rabbits/uxnlin/tree/main/item/src/uxnlin.tal#L332