Run twice at once?

No. SyncNow runs as a single instance per PC; launch it twice and the original simply comes to the front.

SyncNow uses a system mutex to make sure only one copy is alive on your computer at any moment. If you double-click the app while it is already running, or it is already sitting in the tray, the existing window is brought forward instead of starting a second process.

Why a single instance

• One observer per project means one clean activity timeline, not two processes racing to record the same events.
• One local proxy: the agent bridge listens on a known endpoint, so a second instance would clash over the port and token.
• Snapshots, journals and the .sync folder are written by exactly one writer.

The single-instance rule is per machine. You can absolutely run SyncNow on several computers under the same account; they coordinate through one shared cloud timeline, so each PC stays in step without stepping on the others.