Hack your Launchpad! Novation’s new r_cycle lets you design your own layouts and interactions, and even turn them into instruments and effects, all in the free Pure Data environment.
https://github.com/Focusrite-Novation/r_cycle
https://cdm.link/2020/07/novation-launchpad-free-set-of-tools-in-pd-to-hack-your-own-controllers/