S76 Launch Keyboard json
System76 sells configurable keyboards. Their configurator tool supports importing keyboard layouts.
Dvorak Launch Lite - mostly default
This puts Dvorak on Layer 1, leaves layer 2 default except moving the LED Darken to follow the location of the "minus" key.
A good starting point for customization.
Tested on the Launch lite, may work on other models.
dvorak-s76-launch-lite.json