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+## Applications on XOS
+
+This directory may prove to be unnecessary, but for now we
+are using it for applications that run on top of the XOS API.
+Initially, this includes only an auto-scaling app that uses
+monitoring data to decide when to scale a service up/down.
+
+This is treated as an application rather than yet another
+service because it offers only a GUI front-end; it is not
+modelled as a service that other services can build upon.