Bidirectional transparent USB <-> Serial MIDI bridge

Hello, can https://github.com/BlitzCityDIY/midi_uart_experiments/blob/main/CircuitPython/1-23-22_midiUartIn_USB-out.py be made bidirectional (meaning that both sides can send and receive) and transparent (meaning that whatever MIDI channel is used on the one side is used on the other side)?

Here is a similar program written in C:
https://github.com/rsta2/pico/tree/main/midi_adapter