Ask HN: How do you name software?

I recently released some software and it took considerable effort to name. After the public announcement, I learned there was a preexisting project with the same name. Since my software isn't at v1, I'm back to the drawing board. It is a CLI so my criteria is:

- It has to be short enough to type comfortably.

- It has to have a domain available.

- I have to feel an affinity for it.

That last point is fuzziest. How do other people name software?