STM8S103F3P6 development board help
STM8S103F3P6 datasheet: https://www.bitfoic.com/components/what-is-stm8s103f3p6-8-bit-stm8-microcontroller?id=108
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Development tools for Zephyr on STM32
Workbench 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.