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+Apps Development
+================
+
+Supported App Types
+-------------------
+
+ownCloud allows to specify three kind of "types" in the info.xml of a app. The
+type doesn't have to be specified if the app doesn't match any of them.
+
+Currently supported "types":
+
+**filesystem**
+apps which provides filesystem functionality (e.g. files sharing app)
+
+**authentication**
+apps which provided authentication backends
+
+**logging**
+apps which implement a logging system