I finally managed to get this multi-platform C++ library development tool working on Arduino Pro-Mini (AVR), 12F generic module (ESP8266), Raspberry Pi Pico (RP2040) microcontrollers, and PC (Ryzen 5) architectures.

Now I can work on a unified C++ library mostly compatible with all of those platforms, and probably more, even though some architecture specific things can not be avoided.

https://github.com/RPBCACUEAIIBH/LibLab