This shortcut is for use with personal automation. Select an audio source, select an audio destination e.g. HomePod, set a max volume and fade time.
Designed to use as clock radio that fades the music in over a given time instead of just turning on at a set volume.
Apple have updated the get device volume value which breaks this shortcut. The loop has been rewritten to accommodate this
Reordered functions to improve initial audio volume
Reordered functions to improve start volume.