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.
No, I'm running GDB OpenOCD debugging. I have this working on a different (new) computer, but can't get it working on my main one (which has been in use for 3 years). I just figured something was conflicting.