Hi Rohan
I agree with you with the philosophy, it makes a lot of sense and is part of the simplicity to tidbyt.
Very interesting concept regarding this playlists feature.
You could have a playlist dedicated to transit info, for example. Then as a group, these apps could be scheduled for display exclusively as needed.
I could see this being useful, and perhaps you have an option picker available on how you would like to display multiple playlists.
If you only have 1 playlist (default) The tidbyt will display these always.
When you have 2 or more playlists, You can
a. sequentially go through one and then do the other, or
b. you can present one app from playlist 1, then present an app from playlist 2, and then return to playlist 1 to display the next app, and so forth like a round robin.
In the case of the photos playlist, adding a toggle to "display one item from this playlist per rotationâ like you mention would be perfect.
Where, when using the scheme a. above, it will display all apps within playlist 1, then playlist 2 with this âsingle random appâ option applied, will display 1 app from random within the playlist then proceeding to the next playlist in the list.
Do you think that could be a feasible use case? Perhaps this playlists idea may use itâs own thread, but this is a great idea as in the future, many tidbyt apps might come out with users submitting their own some day 
I can see this being useful for grouping similar apps too, as I have multiple crypto trackers, you can have one displayed at random, rather than the whole âplaylistâ of crypto apps, unless you want to 
Thanks Rohan