Compile assets to versioned file for production

atst/assets.py

@@ -0,0 +1,16 @@
+from webassets import Environment, Bundle
+from atst.home import home
+
+assets = Environment(
+    directory=home.child("scss"),
+    url="/static"
+)
+print(assets.url_expire)
+css = Bundle(
+    "atat.scss",
+    filters="scss",
+    output="../static/assets/out.%(version)s.css",
+    depends=("**/*.scss"),
+)
+
+assets.register("css", css)