@solblack I didn't find #ergol keymaps for zmk or qmk so I made mine (it's not for a #FerrisSweep but for these https://fingerpunch.xyz/product/sweeeeep/ which are quite similar) :
- https://github.com/pyaillet/keyboards-qmk/tree/main/keymaps/pya-ergol
- https://github.com/pyaillet/zmk-fingerpunch-keyboards
But as said by @sebplane it might be a better idea to use a standard layout on the keyboard
