Im looking for sample code for using a cheap, 433MHz RF transmitter and receiver

I would like to recreate this on an ST Nucleo Board under Zephyr.

https://randomnerdtutorials.com/rf-433mhz-transmitter-receiver-module-with-arduino/

Most of the code examples I can fine all run on Arduino and use libraries that don't seem to be available under Zephyr. I guess I will end up "bit banging" this. Does any have sample code?