How to configure my STM32 device clocks with device tree? What is the current state of Power Management support on STM32 devices? How to use it ? What about Trusted Firmware M Support ? These are some of the most frequently asked questions around STM32 devices in Zephyr. During this talk, Erwan, STM32 maintainers will answer these questions and will try to provide all the information required to enjoy Zephyr on STM32 with the less possible hiccups. This will also be the occasion to draw a picture on the state of support on the whole STM32 subsystem and related upcoming challenges.