Add webview
diff --git a/webview-frontend.js b/webview-frontend.js
new file mode 100644
index 0000000..9a53b21
--- /dev/null
+++ b/webview-frontend.js
@@ -0,0 +1,4 @@
+const {UnitsApp} = require("./frontend-impl.js");
+const React = require("preact");
+
+React.render(<UnitsApp />, document.getElementById("app"));