install stage 2: add user to useful groups for desktop use by default

This is intended as a desktop system anyway

install-stage2.sh

@@ -137,7 +137,7 @@ read -p "Enter username: " NEW_USER
 #  audio, video
 #  dialout
 #  users (dows this even do anything)
-useradd -m -s /bin/bash -G wheel "$NEW_USER"
+useradd -m -s /bin/bash -G wheel,video,audio,dialout,network "$NEW_USER"
 passwd "$NEW_USER"
 
 echo "Cleaning up installation files..."