Development tools for Zephyr on STM32Workbench for Zephyr: VS Code extension to set up, build, flash and debug Zephyr applications on STM32.Devicetree manager: browse, edit and visualize Zephyr devicetree, STM32CubeMX-like for Zephyr.
I've got 48 articles up there now. Most dealing with getting started with the F4Discovery board. Pick one written by Andrei and at the bottom, there is a link to the index page.