An open source kit to build GUI front ends to control your MIDI devices.
I downloaded one guys effort, a controller / editor for JV-2080. It’s a seriously good editor!
There are lots other ready to go panels guys have built for all sorts of synths.
It’s a generic MIDI kit so you can send sysex nd CC to just about any software or hardware you care to name - even have a nice big panel to control cantabile racks etc.
Some programming required if you want to roll your own.