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.
download and install stm32cubemx. start a new project with the chip/board that you want programm. After in the help menu you can find the relative user manual and other info.