Rename "roles" to "units". Put units in their own folders.

lib/units/device/support/properties.js

@@ -0,0 +1,17 @@
+var syrup = require('syrup')
+
+var logger = require('../../../util/logger')
+
+module.exports = syrup.serial()
+  .dependency(require('./adb'))
+  .define(function(options, adb) {
+    var log = logger.createLogger('device:support:properties')
+
+    function load() {
+      log.info('Loading properties')
+      return adb.getProperties(options.serial)
+        .timeout(10000)
+    }
+
+    return load()
+  })