Consider using Numba

[davep]

Consider the idea of making Numba a dependency. I've done some quick testing with it and simply wrapping the mandelbrot calculation with @jit has an unsurprising yet still astonishing effect on calculation times (although the initial startup time was horrifically slow).

On the one hand I feel this isn't in the spirit of this application; on the other hand it is kind of neat and fun.

Perhaps I could make it optional (need to think about how that would work out for the Homebrew installation).

[davep]

It's a fun idea, and was a fun experiment, but I don't think it's in the spirit of what this application is supposed to be (pure Python code).

Decided against it.

[davep]

Given I'm rolling back Homebrew installation support (it's kinda flaky these days and really the uv ecosystem is winning through for me) I'm reopening this as it's going to be more straightforward to tackle.