Sharing a Rust Attempt on Linux+MCU AMP

I recently completed the HIL on two different platforms for my Rust attempt at asymmetric multiprocessing, and now I'm here to share it with the community. The crate embassy-stm32 doesn't officially support the STM32MP series, and embassy-imxrt doesn't involve the NXP i.MX series, let alone idiomatic inter-processor communication with a typed, asynchronous, and symmetric API design. By wrapping the IPC into Transport, Doorbell, and Channel, I abstracted the IPC into two things: sending the dat...