I have it running as a daemon right now! In the first link I provided, that guy made a small script to run google-music manager as a daemon process.
1. Choose a directory to put your script. E.g.:
2. Create and edit a bash file and implement the daemon. One method:
mkdir +p /opt/google
where "mypassword" is either a) your google password or b) if you have 2-step verification, an application specific password (a 16-letter randomly generated string specific to your app).
Xvfb :2 -screen 0 1024x768x16 &
google-musicmanager -p mypassword &
x11vnc -display :2 -bg -nopw -listen localhost -xkb
3. Write it CTRL+o, and exit CTRL+x.
4. Next, make the script executable
5. Run it:
chmod +x googlemusicmanager.sh
If you ssh'd in with the "-X" option, the GUI will show up on your client. This isn't what you want for a daemon. But if you ssh as you normally would (ssh firstname.lastname@example.org, in my case), the daemon will run in the background.
I hope this works for you!
Nobody has given feedback about getting everything up and running from the wiki/original post, did that also work for you?
Edit: This post has been edited to reflect using nano instead of vim so as to comply with standard VortexBox instructions.