diff --git a/README.md b/README.md
index 24472c36..fde09ef3 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,16 @@
-# yelm-microbit
-A yelm target for microbit
+# microbit target for KindScript
+
+
+## Local run
+
+Make sure `kindscript-microbit` is in a directory next to `kindscript`.
+
+```
+cd ../kindscript
+jake
+cd ../kindscript-microbit
+npm link ../kindscript
+kind serve
+```
+
+To re-build the `built/target.json` file, re-run `kind serve`.
diff --git a/libs/microbit/yelm.json b/libs/microbit/yelm.json
index c7e4c9a7..36804091 100644
--- a/libs/microbit/yelm.json
+++ b/libs/microbit/yelm.json
@@ -1,7 +1,7 @@
 {
     "name": "microbit",
     "description": "The microbit core library",
-    "installedVersion": "xdvxev",
+    "installedVersion": "fahhcl",
     "files": [
         "README.md",
         "core.d.ts",
@@ -73,4 +73,4 @@
             "hasHex": true
         }
     }
-}
\ No newline at end of file
+}