diff --git a/README.md b/README.md
new file mode 100644
index 0000000..96e1e30
--- /dev/null
+++ b/README.md
@@ -0,0 +1,30 @@
+> Open this page at [https://robo-technical-group.github.io/acey-deucey/](https://robo-technical-group.github.io/acey-deucey/)
+
+## Use this extension
+
+This repository can be added as an **extension** in MakeCode.
+
+* open [https://arcade.makecode.com/](https://arcade.makecode.com/)
+* click on **New Project**
+* click on **Extensions** under the gearwheel menu
+* search for **https://github.com/robo-technical-group/acey-deucey** and import
+
+## Edit this extension ![Build status badge](https://github.com/robo-technical-group/acey-deucey/workflows/MakeCode/badge.svg)
+
+To edit this repository in MakeCode.
+
+* open [https://arcade.makecode.com/](https://arcade.makecode.com/)
+* click on **Import** then click on **Import URL**
+* paste **https://github.com/robo-technical-group/acey-deucey** and click import
+
+## Blocks preview
+
+This image shows the blocks code from the last commit in master.
+This image may take a few minutes to refresh.
+
+![A rendered view of the blocks](https://github.com/robo-technical-group/acey-deucey/raw/master/.github/makecode/blocks.png)
+
+#### Metadata (used for search, rendering)
+
+* for PXT/arcade
+<script src="https://makecode.com/gh-pages-embed.js"></script><script>makeCodeRender("{{ site.makecode.home_url }}", "{{ site.github.owner_name }}/{{ site.github.repository_name }}");</script>
diff --git a/main.ts b/main.ts
index 3a4b3c7..e69de29 100644
--- a/main.ts
+++ b/main.ts
@@ -1,24 +0,0 @@
-/**
- * This is the main file for your project.
- *
- * Create images, tilemaps, animations, and songs using the
- * asset explorer in VS Code. You can reference those assets
- * using the tagged templates on the assets namespace:
- *
- *     assets.image`myImageName`
- *     assets.tilemap`myTilemapName`
- *     assets.tile`myTileName`
- *     assets.animation`myAnimationName`
- *     assets.song`mySongName`
- *
- * New to MakeCode Arcade? Try creating a new project using one
- * of the templates to learn about Sprites, Tilemaps, Animations,
- * and more! Or check out the reference docs here:
- *
- * https://arcade.makecode.com/reference
- */
-
-game.onUpdate(() => {
-    // Code in this function will run once per frame. MakeCode
-    // Arcade games run at 30 FPS
-});
diff --git a/pxt.json b/pxt.json
index e32715b..f1a8c23 100644
--- a/pxt.json
+++ b/pxt.json
@@ -1,14 +1,20 @@
 {
     "name": "acey-deucey",
     "version": "1.1.1",
+    "dependencies": {
+        "device": "*"
+    },
     "files": [
-        "main.ts"
+        "main.ts",
+        "README.md"
     ],
+    "testDependencies": {},
+    "targetVersions": {
+        "target": "1.12.53",
+        "targetId": "arcade"
+    },
     "supportedTargets": [
         "arcade"
     ],
-    "dependencies": {
-        "device": "*"
-    },
-    "testDependencies": {}
-}
\ No newline at end of file
+    "preferredEditor": "tsprj"
+}