diff --git a/src/app/extender/services/onboard.service.ts b/src/app/extender/services/onboard.service.ts
new file mode 100644
index 0000000..70d830c
--- /dev/null
+++ b/src/app/extender/services/onboard.service.ts
@@ -0,0 +1,56 @@
+import {IWSEventService} from '../../datasources/websocket/global';
+
+export interface IXosOnboarder {
+
+}
+
+export class XosOnboarder implements IXosOnboarder {
+  static $inject = ['$timeout', '$log', '$q', 'WebSocket', '$ocLazyLoad'];
+
+  constructor(
+    private $timeout: ng.ITimeoutService,
+    private $log: ng.ILogService,
+    private $q: ng.IQService,
+    private webSocket: IWSEventService,
+    private $ocLazyLoad: any // TODO add definition
+  ) {
+    this.$log.info('[XosOnboarder] Setup');
+    this.webSocket.list()
+      .filter((e) => {
+        this.$log.log(e);
+        // TODO define event format
+        return e.msg['files'].length > 0;
+      })
+      .subscribe(
+        (event) => {
+          this.loadFile(event.msg['files'])
+            .then((res) => {
+              this.$log.info(`[XosOnboarder] All files loaded for app: ${event.msg['app']}`);
+            });
+        }
+      );
+  }
+
+  // NOTE files needs to be loaded in order, so async loop!
+  private loadFile(files: string[], d?: ng.IDeferred<any>): ng.IPromise<string[]> {
+    if (!angular.isDefined(d)) {
+      d = this.$q.defer();
+    }
+    const file = files.shift();
+    this.$log.info(`[XosOnboarder] Loading file: ${file}`);
+    this.$ocLazyLoad.load(file)
+      .then((res) => {
+        this.$log.info(`[XosOnboarder] Loaded file: `, file);
+        if (files.length > 0) {
+          return this.loadFile(files, d);
+        }
+        return d.resolve(file);
+      })
+      .catch((err) => {
+        this.$log.error(`[XosOnboarder] Failed to load file: `, err);
+        d.reject(err);
+      });
+
+    return d.promise;
+  }
+}