MCUMGR remote firmware update

| Host |  <---- UART ----> | nRF52833 (central) |  <-- BLE--> | nRF52833 (Target) |

I have a requirement where I hope to update the central's firmware image through the Host.
However, I also want the Host to be able to update the firmware image of the target through the central.

As a beginner, I'm currently unsure how to proceed.

From what I understand, it seems possible to enable MCUMGR functionality on the Zephyr running on the central.
But I'm not sure how firmware updates can be performed between the central and target.

Which nordic zephyr examples can I refer to?
or suggestions regarding this design architecture?