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
Yes, when you create a custom board, we use a generic interrupt vector table so, for now, you have to create it, either manually or by looking in a similar evaluation board and copying the startup.s file.