diff --git a/.gitignore b/.gitignore
index 6b9f39e..fe7241d 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,3 @@
 json/*
 __pycache__/
+*.swp
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..e984eb1
--- /dev/null
+++ b/README.md
@@ -0,0 +1,8 @@
+# Recommendation Engine Example
+
+## Install dependencies and run:
+
+    python3 -m venv ./venv --system-site-packages
+    ./venv/bin/pip install -r requirements.txt
+
+    ./venv/bin/python server.py
diff --git a/etc/systemd/system/dd-re.service b/etc/systemd/system/dd-re.service
new file mode 100644
index 0000000..3cc90c0
--- /dev/null
+++ b/etc/systemd/system/dd-re.service
@@ -0,0 +1,13 @@
+[Unit]
+Description=dd-re
+
+[Service]
+Type=simple
+Restart=always
+User=dd
+Group=dd
+WorkingDirectory=/srv/dd/re
+ExecStart=/srv/dd/re/server.py
+
+[Install]
+WantedBy=multi-user.target
diff --git a/recommendation_engine.py b/recommendation_engine.py
index cbfdd96..70f616e 100644
--- a/recommendation_engine.py
+++ b/recommendation_engine.py
@@ -9,6 +9,8 @@ import random
 
 import ox
 
+from utils import run_async
+
 class Engine:
 
     def __init__(self, path):
@@ -111,6 +113,10 @@ class Engine:
         with open(os.path.join(self.path, 'playlists.json'), 'w') as f:
             f.write(json.dumps(self.playlists, indent=4, sort_keys=True))
 
+    @run_async
+    def update_async(self):
+        self.update()
+
 
 class Pandora:
 
diff --git a/requirements.txt b/requirements.txt
new file mode 100644
index 0000000..64c5e3f
--- /dev/null
+++ b/requirements.txt
@@ -0,0 +1,2 @@
+tornado
+ox
diff --git a/server.py b/server.py
old mode 100755
new mode 100644
index d084f91..02f4276
--- a/server.py
+++ b/server.py
@@ -94,12 +94,7 @@ def main(prefix='json/'):
     app.listen(settings['port'], settings['address'])
     main = IOLoop.instance()
 
-    @run_async
-    def update():
-        engine.update()
-
-    update_cb = PeriodicCallback(update, 60000)
-
+    update_cb = PeriodicCallback(engine.update_async, 15*60*1000)
     #main.spawn_callback(update, engine)
 
     #fixme run periodically