I have added the volume value to my small display via a new element
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<input id="volumevalue" readonly="" style="border:0; font-weight:bold;" type="text">
However, if the volume is changed by a second client, e.g. running on the PC, the volume value on my RPI-display is not updated.
What do I need to do to update the actual volume value on my RPI-display ?
Can somebody give me a hint, how this is done in Rune UI or point me to some files or code which is responsible to do this ?