let's try again

appdmg.json

@@ -5,6 +5,6 @@
   "icon-size": 80,
   "contents": [
     { "x": 448, "y": 344, "type": "link", "path": "/Applications" },
-    { "x": 192, "y": 344, "type": "file", "path": "Node-RED-darwin-x64/Node-RED.app" }
+    { "x": 192, "y": 344, "type": "file", "path": "dist/Node-RED-darwin-x64/Node-RED.app" }
   ]
 }

builder.json

@@ -0,0 +1,16 @@
+{
+  "osx" : {
+    "title": "Node-RED installer",
+    "background": "appbkg.png",
+    "icon": "nodered.icns",
+    "icon-size": 80,
+    "contents": [
+      { "x": 438, "y": 344, "type": "link", "path": "/Applications" },
+      { "x": 192, "y": 344, "type": "file" }
+    ]
+  },
+  "win" : {
+    "title" : "Node-RED installer",
+    "icon" : "nodered.ico"
+  }
+}

package.json

@@ -8,14 +8,16 @@
     "test": "echo \" Warning: no test specified \"",
 
     "clean": "rm -rf ./dist ",
-    "clean: osx": "rm -rf ./dist/osx",
-    "clean: win": "rm -rf ./dist/win",
 
-    "pack": "npm run pack : osx",
-    "pack: osx": "npm run clean:. osx && electron-packager electron-node-red Node-RED --out = dist/osx --icon=nodered.icns --platform=darwin --arch=x64 ",
+    "pack": "npm run pack:osx",
+    "pack:osx": "npm run clean && electron-packager . Node-RED --icon=nodered.icns --platform=darwin --arch=x64 --out=dist",
+    "pack:win": "npm run clean && electron-packager . Node-RED --icon=nodered.icns --platform=win32 --arch=x64 --out=dist",
+
+    "build": "npm run build:osx",
+    "build:osx": "npm run pack:osx && appdmg appdmg.json dist/Node-RED.dmg",
+    "build:mac": "npm run pack:osx && electron-builder \"dist/Node-RED-darwin-x64\" --platform=osx --out=dist --config=builder.json",
+    "build:win": "npm run pack:win && electron-builder \"dist/Node-RED-win32-x64\" --platform=win --out=dist --config=builder.json"
 
-    "build": "npm run build : osx",
-    "build: osx": "npm run pack: osx && appdmg appdmg.json dist/NodeRED.dmg"
    },
   "repository": {
     "type": "git",