My thought was that one could use yad or something to that effect to pop up a GUI picker with several options to choose from. Obviously the full monte would be a configuration file and/or a settings panel where many different scripts could be prepared. However one of these is easier than the other.

I have worked a little with JS, but I mostly write Python and C, so Joplin and it's technology stack are a bit outside my area of expertise. That said, time permitting, I will try to create a PoC.