Syncing in Roam can be done by adding a providers section project.config (or settings.config).

The providers section looks like the following:

providers:
  Base data:
    cmd: Sync-Basedata.bat
    type: replication
    variables:
      LOCALDATABASE: Roam

Each entry under providers is a sync button for that project in the Roam sync screen. The options are:

• cmd The process to call to run the sync logic.
• type must be set to replication at the moment
• variables environment variables that will be set before running the sync process. You can access these in your sync process.

No built in sync?

Currently Roam itself doesn't support, or contain, any magic syncing logic. This is left up to the admin of the project as it varies a lot per site and project.