Hey Darwyn.
You are absolutely right, the PC speaker app requires an UI. I have a very long list of features I want to realize and this one is in the top 5. Please stay tuned, I will let you know when its done.

And regarding your second question:
You can keep the speaker app running by changing the command line from “java” to “javaw”:
javaw -jar soundseederspeaker.jar
But please note: You will need to kill the process via your task manager, if you want to stop the speaker app.