I have published all the documentation in a Github repository. If someone wants to make PCBs, I recommend that you wait a little longer until you receive my PCBs and try them.
https://github.com/giltesa/SmartHome
@canossa Sorry for the late response.
yeah, since is so compact and you can get it for relatively cheap I opted in for the NRF52.
For home automation, I merged MySensors with Domoticz and it works for months now.
https://forum.mysensors.org/topic/7836/what-did-you-build-today-pictures/738