Arduino for STM32

Thanks for the reply.

For me this may turn out to be impossible to do alone.

I have no idea how or where to overwrite the library to fit STM. I couldn't find a library for these transceivers and STM anywhere on the internet.

Dear everybody!

I am trying to program through ARDUINO IDE 2.3.2 a STM32F103C8T6 BluePill using HID Bootloader 2.2 on a Windows 11 Home, but I get an error:
"Compilation error:

"C:\Users\Myk13\AppData\Local\Temp\.arduinoIDE-unsaved202489-10700-m63q25.c3m6d\RFM69-Gateway-STM32\RFM69-Gateway ...