The Simple Stepper Motor Analyzer was developed with platformio.
The original version was STM32F401CE based, with the Arduino framework, and the latest version Raspberry Pi Pico based, with the WizIO ‘baremetal’ framework.
I prefer the WizIO framework over the official Arduino framework because it provides full access to the capabilities of the Pico C++ SDK and is compatible with the RPI’s ‘designed-for-adults’ API and documentation.
Hopefully the Platfromio team will also provide an official Pico C++ SDK equivalent.