Thanks for this. It's a great start.

Couple of quick points.

It takes a very long time to start up. I'm guessing you are scanning my music - I have a lot - some user feedback of this would be useful.

When resaving a playlist it seems to append to the existing m3u file rather than overwrite it. Can't say for sure what you are doing without looking at the source but I tried a few times and that seemed to be the observed behaviour.

cheers