Based on
https://github.com/abelectronicsuk/ABElectronics_C_Libraries/tree/master/IOZero32
by AB Electronics UK
rm -rvf build
cmake -B build -S . -DEXAMPLE_BUILD=ON -DFREERTOS_DIR=/Users/matt/Dropbox/Work/LWK/Pico-RP2040/github/FreeRTOS-Kernel
cd build
make