There's no compiler here - it's a tool for bidirectionally synchronizing files (specifically code, assets, build products, etc.) and forwarding network traffic to and from remote systems.

The idea behind Mutagen is to use your local tools (e.g. editor, IDE, browser, etc.) to work on remote hardware (where "remote" can mean anything you like, e.g. your local system, a Docker container (local or remote), a Raspberry Pi, a cloud server, etc. - or some combination of all of those).

The architecture is designed to be maximally flexible, so you can work between your local system and a remote system, between two remote systems, or in any other topology you want.