diff --git a/Entitlements.plist b/Entitlements.plist
new file mode 100644
index 0000000..1536568
--- /dev/null
+++ b/Entitlements.plist
@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>com.apple.developer.ubiquity-container-identifiers</key>
+	<array>
+		<string>$(TeamIdentifierPrefix)jaquadro.nbtexplorer</string>
+	</array>
+	<key>com.apple.developer.ubiquity-kvstore-identifier</key>
+	<string>$(TeamIdentifierPrefix)jaquadro.nbtexplorer</string>
+</dict>
+</plist>
diff --git a/NBTExplorerMac.csproj b/NBTExplorerMac.csproj
index 025e8b7..7d07f4e 100644
--- a/NBTExplorerMac.csproj
+++ b/NBTExplorerMac.csproj
@@ -40,8 +40,13 @@
     <ConsolePause>False</ConsolePause>
     <EnableCodeSigning>False</EnableCodeSigning>
     <CreatePackage>False</CreatePackage>
-    <CodeSigningKey>Mac Developer</CodeSigningKey>
+    <CodeSigningKey>Developer ID Application: Justin Aquadro (Z8QFJNBZ68)</CodeSigningKey>
     <PackageSigningKey>3rd Party Mac Developer Installer</PackageSigningKey>
+    <CustomCommands>
+      <CustomCommands>
+        <Command type="AfterBuild" command="codesign -f -s &quot;Developer ID Application: Justin Aquadro (Z8QFJNBZ68)&quot; --resource-rules ResourceRules.plist NBTExplorer.app" workingdir="${TargetDir}" />
+      </CustomCommands>
+    </CustomCommands>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'AppStore|AnyCPU' ">
     <DebugType>none</DebugType>
@@ -81,6 +86,9 @@
     <None Include="Properties\Settings.settings" />
     <None Include="LICENSE.txt" />
     <None Include="Mac\Scratch.cs" />
+    <None Include="ResourceRules.plist">
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+    </None>
   </ItemGroup>
   <Import Project="$(MSBuildBinPath)\Microsoft.CSharp.targets" />
   <Import Project="$(MSBuildExtensionsPath)\Mono\MonoMac\v0.0\Mono.MonoMac.targets" />
diff --git a/Properties/AssemblyInfo.cs b/Properties/AssemblyInfo.cs
index 66baf9f..6adea63 100644
--- a/Properties/AssemblyInfo.cs
+++ b/Properties/AssemblyInfo.cs
@@ -32,5 +32,5 @@ using System.Runtime.InteropServices;
 // You can specify all the values or you can default the Build and Revision Numbers 
 // by using the '*' as shown below:
 // [assembly: AssemblyVersion("1.0.*")]
-[assembly: AssemblyVersion("2.0.2.0")]
-[assembly: AssemblyFileVersion("2.0.2.0")]
+[assembly: AssemblyVersion("2.0.3.0")]
+[assembly: AssemblyFileVersion("2.0.3.0")]
diff --git a/ResourceRules.plist b/ResourceRules.plist
new file mode 100644
index 0000000..e7ec329
--- /dev/null
+++ b/ResourceRules.plist
@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>rules</key>
+	<dict>
+		<key>.*</key>
+		<true/>
+		<key>Info.plist</key>
+		<dict>
+			<key>omit</key>
+			<true/>
+			<key>weight</key>
+			<real>10</real>
+		</dict>
+		<key>ResourceRules.plist</key>
+		<dict>
+			<key>omit</key>
+			<true/>
+			<key>weight</key>
+			<real>100</real>
+		</dict>
+	</dict>
+</dict>
+</plist>