This is an as yet untested "works for me" CC1101 board intended for use with ESPSomfy-RTS, using that project's recommended pinouts.
Update: Board seems to work, but ESPSomfy-RTS's default TX and RX pins are swapped. No attempt has been made to measure the RF or EMC characteristics.
I do not know what I'm doing. Use at your own risk.
Designed in KiCad 6.0.