How hard would it be to run Slack in a special VM that brokered UI events from another application? I.e. the latest Slack would be running in a VM that made ev

How hard would it be to run Slack in a special VM that brokered UI events from another application? I.e. the latest Slack would be running in a VM that made everything seem normal to it, but in reality the UI input and output would be supplied by another application which was presenting a "Slack Classic" interface to the actual user.