I am currently trying to make the GUI from a Black Mirror Episode: The Entire History of You: Season 1, Episode 3
But I can't workout how to make the radial repeater have randomness to it. If there is another tool I should be using please let me knows.
I recently made something similar, (assuming you're talking about the thin circular rings and not the photos.) Try making a circle shape layers with no fill and a stroke, then change the dash settings and duplicate the layer once or twice with tweaked settings and that should make it look like the dashes are random length. Then just do that for each ring, should get you pretty close.