Working on an audio streaming platform powering an indy internet radio. Looks like Icecast & friends show its age and a similar product can be easily built with the functionality cast down to simply robust streaming & handling "timed playlists". I enjoy every bit of knowing exactly what happens in the code. It's not open source atm, but will be. It's in Go, is a pleasure to write and the deployment takes minimal amount of resources.
Other project is to continue a bit stalled progress of a configuration language BCL - add functions, more structures and fix some hidden scoping issues. Making languages is an endless fun. https://github.com/wkhere/bcl
Was recently looking for such a streaming thing; just streaming from a set of MP3s in a folder, nothing fancy. The majority looked too complex, with too many moving parts, for my idea.
Found one in Go that might interest you too: GoFM. Although I dropped my idea for now, I'd love to see yours come to life, too.