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.
Perfect - thank you @dautrevaux - that's what I was missing! Glad I asked as now if someone has this question in future there's a place for them to find an answer 😊