Adding CMIS (1.1) server capability to BTSync Business Edition would open it up to an interesting enterprise use. If you have an ECM service in your organization, it is very likely that it can talk CMIS. Such systems could talk to a local BTSync node with CMIS listener for replicating their repositories locally, but then the BTSync node coud be part of a cluster of nodes, located on premises and/or in cloud, that could cheaply allow achieving the planned repository replication quorum/goal.