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.
Honestly I moved away from ST. I was so put off by how they handeled their "promise" and zero follow up on the only OSX thread. Good luck waiting people.