Honestly, I was just looking to learn Rust and this seemed like a reasonable project for it. It's small enough that I could conceivably rewrite it in a couple of months and the stakes were low if it didn't work out.

Mostly, I'm just sticking with the Rust implementation now because it has a couple of new features that I wanted. Also, it should theoretically (I have not tested) be able to run on other OSes, since it is built around JACK instead of ALSA.