I'm glad you posted this because I just realized Audiogalaxy does something very similar to the side project I'm working on. I want to solve the same problem of streaming music from a desktop (or, even better, a Raspberry Pi with large USB drive) to my laptop, tablet and phone on the go. It's just a personal scratch-an-itch project, but this suggests there's a market for such an app.

How well does their implementation work? Are you writing this in the past tense just because AG is likely to close soon, or did you already find a different solution?