Serial Bridge Between Two Computers

I am looking for general information/advice on creating a ROS 2 bridge between two computers.

I want computer A to be able to subscribe/publish to a few very specific topics Computer B is talking/listening to.

These computers are two x86 computers running full ROS 2, they just have to be over serial, and the serial pipe is low bandwidth.

Is micro-ROS the proper tool/project to solve this problem?

The issue names no source file, test, or entry point. First clarify whether a ROS 2 or micro-ROS serial bridge is intended and which topics and protocol constraints must be supported; done would require an agreed implementation scope and validation for the two x86 ROS 2 computers.

Written by the indexing model from the issue text.