diff --git a/app.py b/app.py
index 8c1f0c08..b4e36c1e 100755
--- a/app.py
+++ b/app.py
@@ -1,42 +1,11 @@
 #!/usr/bin/env python
 
+from atst.app import make_app
 import tornado.ioloop
-import tornado.web
 import os
-from webassets import Environment, Bundle
 
-# Set up assets.
-static_path = os.path.join(os.path.dirname(__file__), "static")
-scss_path = os.path.join(os.path.dirname(__file__), "scss")
-assets = Environment(directory=scss_path, url='/static')
-css = Bundle('atat.scss', filters='scss', output='../static/assets/out.css')
-assets.register('css', css)
-helpers = {
-    'assets': assets
-}
-
-class MainHandler(tornado.web.RequestHandler):
-
-    def get_template_namespace(self):
-        ns = super(MainHandler, self).get_template_namespace()
-        ns.update(helpers)
-        return ns
-
-    def get(self):
-        self.render("hello.html.to")
-
-def make_app():
-    app  = tornado.web.Application([
-        (r"/", MainHandler),
-    ],
-    debug=os.getenv('DEBUG',False),
-    template_path=os.path.join(os.path.dirname(__file__), "templates"),
-    static_path=static_path
-    )
-    return app
-
-if __name__ == "__main__":
-    app = make_app()
-    app.listen(8888)
-    print("Listening on http://localhost:8888")
-    tornado.ioloop.IOLoop.current().start()
+app = make_app(debug=os.getenv('DEBUG',False))
+port = 8888
+app.listen(port)
+print("Listening on http://localhost:%i" % port)
+tornado.ioloop.IOLoop.current().start()
diff --git a/atst/__init__.py b/atst/__init__.py
new file mode 100644
index 00000000..e69de29b
diff --git a/atst/app.py b/atst/app.py
new file mode 100644
index 00000000..76cfa737
--- /dev/null
+++ b/atst/app.py
@@ -0,0 +1,13 @@
+import tornado.web
+from atst.handlers.main import MainHandler
+from atst.home import home
+
+def make_app(**kwargs):
+    app = tornado.web.Application([
+            (r"/", MainHandler),
+        ],
+        template_path = home.child('templates'),
+        static_path   = home.child('static'),
+        **kwargs
+    )
+    return app
diff --git a/atst/handler.py b/atst/handler.py
new file mode 100644
index 00000000..9f47aedf
--- /dev/null
+++ b/atst/handler.py
@@ -0,0 +1,24 @@
+import os
+from webassets import Environment, Bundle
+import tornado.web
+from atst.home import home
+
+class BaseHandler(tornado.web.RequestHandler):
+
+    def get_template_namespace(self):
+        assets = Environment(
+                        directory = home.child('scss'),
+                        url       = '/static')
+        css    = Bundle(
+                        'atat.scss',
+                        filters = 'scss',
+                        output  = '../static/assets/out.css')
+
+        assets.register( 'css', css )
+        helpers = {
+            'assets': assets
+        }
+
+        ns = super(BaseHandler, self).get_template_namespace()
+        ns.update(helpers)
+        return ns
diff --git a/atst/handlers/__init__.py b/atst/handlers/__init__.py
new file mode 100644
index 00000000..e69de29b
diff --git a/atst/handlers/main.py b/atst/handlers/main.py
new file mode 100644
index 00000000..fdde8fc3
--- /dev/null
+++ b/atst/handlers/main.py
@@ -0,0 +1,5 @@
+from atst.handler import BaseHandler
+
+class MainHandler(BaseHandler):
+    def get(self):
+        self.render("hello.html.to")
diff --git a/atst/home.py b/atst/home.py
new file mode 100644
index 00000000..8d72d7c0
--- /dev/null
+++ b/atst/home.py
@@ -0,0 +1,3 @@
+from unipath import Path
+
+home = Path( __file__ ).parent.parent
diff --git a/requirements.txt b/requirements.txt
index fbddde00..470daaa4 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,3 +2,4 @@ tornado==5.0.2
 webassets==0.12.1
 pytest==3.6.0
 pytest-tornado==0.5.0
+Unipath==1.1
diff --git a/tests/test_basic.py b/tests/test_basic.py
index b4fc343b..76dd5c92 100644
--- a/tests/test_basic.py
+++ b/tests/test_basic.py
@@ -1,6 +1,6 @@
 import pytest
 import tornado.web
-from app import make_app
+from atst.app import make_app
 
 @pytest.fixture
 def app():