Zephyr Workbench, a VSCode extension to manage Zephyr on STM32.
It enables users to easily create, develop, and debug Zephyr applications.
Main features:
Install host dependencies.
Import toolchain and SDK.
Create, configure, build and manage apps.
Debug STM32.
You can directly download it from the VSCode marketplace
For more details, visit the Zephyr Workbench
There has been an update recently for the dual bank devices STM32L0, STM32L1 and STM32F1 so you should update the software plugins first (v1.12.0).
With menu Help => Check For Updates.