This page contains getting started how to guides containing detailed description of the integration process into various SDKs. The fact that your particular combination of SDK/MCU is not listed here does not mean it is not supported! In general, any ARM MCU is supported as long as it is equipped with ARM memory protection unit.
HOWTO: Integrating CMRX into CubeMX project
This is a detailed guide on how to integrate CMRX RTOS into project whose HAL is provided by ST Microelectronics' CubeMX tool. While the guide is using STM32H7 as the target CPU, the guide should be valid for all supported STM32 microcontrollers.
HOWTO: Integrating CMRX into Pico-SDK project
This is a detailed guide on how to integrate CMRX RTOS into project running on top of the Pico-SDK. RP2040 is used as target microcontroller, but the steps neede should be very similar for RP2350.