diff --git a/Platform/Apple/README.md b/Platform/Apple/README.md
index 7b1e561d..a1b14d0d 100644
--- a/Platform/Apple/README.md
+++ b/Platform/Apple/README.md
@@ -4,16 +4,21 @@ Building for the Apple II Platform
 1. Build the A2Copy tool, which copies directories in/out of image files: `cd tools/A2Copy`
    and then `ant`, and finally `cd ../..`
 
-2. Set the location of the "cc65" tool set. Make a copy of `virtual/src/include/sample.build.props`
+2. Build the PackMap tool, which converts Outlaw XML to a packed map. `cd tools/PackMap`
+   and then `ant`, and finally `cd ../..`. I think you need Groovy support in your
+   NetBeans installation for this to work.
+
+3. Pack your game data. `java -jar tools/PackMap/dist/PackMap.jar yourXMLFile.xml virtual/data/maps/map.pack/bin`
+
+4. Copy the frame image (in Apple II format) to virtual/data/images/frame.bin
+
+5. Set the location of the "cc65" tool set. Make a copy of `virtual/src/include/sample.build.props`
    and call it `build.props` (in that same directory). Edit the `CC65_BIN_DIR` path inside that file 
    to point at your cc65 installation. There should be "ca65", "cc65", "ld65" etc. in the directory
    you point to.
 
-3. Add game data. Grab sample game data (images, maps, etc.) and put them into the `data` directory.
-   Image .bin files go in `data/images`, etc.
+6. Now build a complete disk image: `cd virtual` and then `ant`
 
-4. Now build a complete disk image: `cd virtual` and then `ant`
+7. Boot up the resulting disk image `game.2mg` on your Apple II or emulator.
 
-5. Boot up the resulting disk image `game.2mg` on your Apple II or emulator.
-
-6. To run the render demo, type `-RENDER` at the ProDOS Basic prompt.
+8. To run the render demo, type `-RENDER` at the ProDOS Basic prompt.