diff --git a/.github/workflows/github-actions.yml b/.github/workflows/github-actions.yml
index f167f12..5205ea7 100644
--- a/.github/workflows/github-actions.yml
+++ b/.github/workflows/github-actions.yml
@@ -15,11 +15,13 @@ env:
   LAERDAL_SOURCE_BRANCH: ${{           github.ref                            }}
   LAERDAL_REPOSITORY_PATH: ${{         github.repository                     }}
 
+  # note that its vital that we use our own token here instead of GITHUB_TOKEN    that is because access the
+  # nuget repos of Laerdal.Dfu.Bindings.iOS and Laerdal.Dfu.Bindings.Android which are inaccessible to the GITHUB_TOKEN 
   SCL_GITHUB_ACCESS_TOKEN: ${{        secrets.SCL_GITHUB_ACCESS_TOKEN        }}
   SCL_NUGET_ORG_FEED_API_KEY: ${{     secrets.NUGET_ORG_FEED_API_KEY         }}
-  SCL_AZURE_ARTIFACTS_API_KEY: ${{    secrets.SCL_AZURE_ARTIFACTS_API_KEY    }}
   SCL_GITHUB_NUGET_FEED_USERNAME: ${{ secrets.SCL_GITHUB_NUGET_FEED_USERNAME }}
 
+
 on:
   workflow_call: #     so that other workflows can trigger this
   workflow_dispatch: # allows to run this workflow manually from the actions tab
@@ -38,7 +40,7 @@ jobs:
   build:
 
     runs-on: 'windows-2022'
-    timeout-minutes: 5
+    timeout-minutes: 20
 
     steps:
 
@@ -91,7 +93,7 @@ jobs:
 
       - name: '🚀 Publish to the Laerdal Nuget Server on Github' # https://docs.github.com/en/packages/working-with-a-github-packages-registry/working-with-the-nuget-registry
         shell: 'bash'
-        if: github.ref == 'refs/heads/master' || github.ref == 'refs/heads/main' || github.ref == 'refs/heads/develop'
+        if: github.ref == 'refs/heads/master' || github.ref == 'refs/heads/main' || github.ref == 'refs/heads/develop' || github.ref == 'refs/heads/ksidirop/MAN-335-ios-runtime-error-fix-about-you-should-not-call-this-method'
         run: |
           cd "${{env.BUILD_REPOSITORY_FOLDERPATH}}/Artifacts/"                                    \
                     &&                                                                            \
@@ -117,4 +119,4 @@ jobs:
                   push                                                                            \
                   --source   "https://api.nuget.org/v3/index.json"                                \
                   --api-key  "${{env.SCL_NUGET_ORG_FEED_API_KEY}}"                                \
-                  *nupkg
+                  *.nupkg
diff --git a/.gitignore b/.gitignore
index 6527e19..195b533 100644
--- a/.gitignore
+++ b/.gitignore
@@ -354,3 +354,10 @@ Output/
 
 .DS_Store
 
+**/Jars/*.[JjAa]ar
+
+**/Carthage/Cartfile
+
+# we dont want to allow any local nuget.configs to be checked in as they can cause issues with the build and/or contain hardcoded API keys with write access to the
+# nuget feed and this is something we definitely want to avoid at all costs for obvious reasons    such nuget.config files should be remain local to each dev machine
+[Nn][Uu][Gg][Ee][Tt].[Cc][Oo][Nn][Ff][Ii][Gg]
diff --git a/Laerdal.Dfu.sln b/Laerdal.Dfu.sln
index fd306ec..2264f7b 100644
--- a/Laerdal.Dfu.sln
+++ b/Laerdal.Dfu.sln
@@ -12,6 +12,8 @@ Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "_Misc", "_Misc", "{37EBD209
 		Laerdal.Scripts\Laerdal.CreateNewReleaseInGithub.sh = Laerdal.Scripts\Laerdal.CreateNewReleaseInGithub.sh
 		Laerdal.Scripts\Laerdal.SetupBuildEnvironment.sh = Laerdal.Scripts\Laerdal.SetupBuildEnvironment.sh
 		.github\workflows\github-actions.yml = .github\workflows\github-actions.yml
+		.gitignore = .gitignore
+		global.json = global.json
 	EndProjectSection
 EndProject
 Global
diff --git a/Laerdal.Dfu/Laerdal.Dfu.csproj b/Laerdal.Dfu/Laerdal.Dfu.csproj
index b7876b5..f92c72d 100644
--- a/Laerdal.Dfu/Laerdal.Dfu.csproj
+++ b/Laerdal.Dfu/Laerdal.Dfu.csproj
@@ -1,13 +1,19 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
     <PropertyGroup>
-        <TargetFrameworks>net7.0-ios;net7.0-android</TargetFrameworks>
+        <!-- todo   add support for maccatalyst -->
+        <TargetFrameworks>net7.0-ios;net7.0-android;netstandard2.1;</TargetFrameworks>
+
         <UseMaui>true</UseMaui>
         <SingleProject>true</SingleProject>
         <ImplicitUsings>enable</ImplicitUsings>
+        
+        <LangVersion>11.0</LangVersion>
+        
+        <TargetPlatformIdentifier>$([MSBuild]::GetTargetPlatformIdentifier('$(TargetFramework)'))</TargetPlatformIdentifier>
 
-        <SupportedOSPlatformVersion Condition="$([MSBuild]::GetTargetPlatformIdentifier('$(TargetFramework)')) == 'ios'">14.2</SupportedOSPlatformVersion>
-        <SupportedOSPlatformVersion Condition="$([MSBuild]::GetTargetPlatformIdentifier('$(TargetFramework)')) == 'android'">21.0</SupportedOSPlatformVersion>
+        <SupportedOSPlatformVersion Condition=" '$(TargetPlatformIdentifier)' == 'ios'     ">14.2</SupportedOSPlatformVersion>
+        <SupportedOSPlatformVersion Condition=" '$(TargetPlatformIdentifier)' == 'android' ">21.0</SupportedOSPlatformVersion>
     </PropertyGroup>
 
     <PropertyGroup>
@@ -17,7 +23,7 @@
         <Laerdal_Package_Description>Wrapper around Nordic.Dfu</Laerdal_Package_Description>
     </PropertyGroup>
 
-    <!-- ==================== VERSION ==================== -->
+    <!-- ============================ VERSION ============================ -->
     <PropertyGroup>
         <Laerdal_Version_Major Condition=" '$(Laerdal_Version_Major)' == '' ">1</Laerdal_Version_Major>
         <Laerdal_Version_Minor Condition=" '$(Laerdal_Version_Minor)' == '' ">27</Laerdal_Version_Minor>
@@ -25,13 +31,31 @@
 
         <Laerdal_Version Condition="       '$(Laerdal_Version)'       == '' ">$(Laerdal_Version_Major).$(Laerdal_Version_Minor).$(Laerdal_Version_Build)</Laerdal_Version>
     </PropertyGroup>
+    <!-- ============================ VERSION ============================ -->
+
+    
+    <!-- ==================== NETSTANDARD PlACEHOLDER ==================== -->
+    <ItemGroup Condition=" '$(TargetFramework.StartsWith(netstandard))' == 'true' ">
+        <Compile Remove="Platforms\**\**">
+        </Compile>
+    </ItemGroup>
+
+    <ItemGroup Condition=" '$(TargetFramework.StartsWith(netstandard))' != 'true' ">
+        <Compile Remove="Platforms.NetStandard\**">
+        </Compile>
+    </ItemGroup>
+    <!-- ==================== NETSTANDARD PlACEHOLDER ==================== -->
 
     <Import Project="Laerdal.targets"/>
 
-    <ItemGroup Condition="'$(TargetFramework)' == 'net7.0-android'">
-        <PackageReference Include="Laerdal.Dfu.Bindings.Android" Version="2.3.0.43685"/>
+    <!-- =========================== PACKAGES ============================ -->    
+    <ItemGroup Condition=" '$(TargetPlatformIdentifier)' == 'android' ">
+        <PackageReference Include="Laerdal.Dfu.Bindings.Android" Version="2.3.0.43876"/>
     </ItemGroup>
-    <ItemGroup Condition="'$(TargetFramework)' == 'net7.0-ios'">
-        <PackageReference Include="Laerdal.Dfu.Bindings.iOS" Version="4.13.0.43870"/>
+    
+    <ItemGroup Condition=" '$(TargetPlatformIdentifier)' == 'ios' ">
+        <PackageReference Include="Laerdal.Dfu.Bindings.iOS" Version="4.13.0.43926"/>
     </ItemGroup>
-</Project>
\ No newline at end of file
+    <!-- =========================== PACKAGES ============================ -->
+
+</Project>
diff --git a/Laerdal.Dfu/Laerdal.targets b/Laerdal.Dfu/Laerdal.targets
index bea5937..0f524dc 100644
--- a/Laerdal.Dfu/Laerdal.targets
+++ b/Laerdal.Dfu/Laerdal.targets
@@ -53,6 +53,7 @@
         <PackageLicenseFile Condition="Exists('$(PackageLicencePath)')">LICENSE</PackageLicenseFile>
         <PackageReadmeFile Condition="Exists('$(PackageReadMePath)')">README.md</PackageReadmeFile>
     </PropertyGroup>
+
     <ItemGroup>
         <None Include="$(PackageIconPath)" Pack="true" PackagePath="\" Condition="Exists('$(PackageIconPath)')" />
         <None Include="$(PackageLicencePath)" Pack="true" PackagePath="\" Condition="Exists('$(PackageLicencePath)')" />
diff --git a/Laerdal.Dfu/Platforms.NetStandard/DfuInstallation.cs b/Laerdal.Dfu/Platforms.NetStandard/DfuInstallation.cs
new file mode 100644
index 0000000..b4cefaa
--- /dev/null
+++ b/Laerdal.Dfu/Platforms.NetStandard/DfuInstallation.cs
@@ -0,0 +1,15 @@
+namespace Laerdal.Dfu
+{
+    public partial class DfuInstallation
+    {
+        public DfuInstallation(string deviceId, string fileUrl)
+        {
+            throw new NotImplementedException();
+        }
+        
+        public override void Abort() => throw new NotImplementedException();
+        public override void Start() => throw new NotImplementedException();
+        public override void Pause() => throw new NotImplementedException();
+        public override void Resume() => throw new NotImplementedException();
+    }
+}
diff --git a/Laerdal.Dfu/Platforms/Android/DfuInstallation.cs b/Laerdal.Dfu/Platforms/Android/DfuInstallation.cs
index 1b83d38..7f165ee 100644
--- a/Laerdal.Dfu/Platforms/Android/DfuInstallation.cs
+++ b/Laerdal.Dfu/Platforms/Android/DfuInstallation.cs
@@ -137,6 +137,7 @@ private void SetInitiator()
         public DfuInstallation(string deviceId, string fileUrl) : base(deviceId, fileUrl)
         {
         }
+
         public DfuInstallation() : base()
         {
         }
diff --git a/Laerdal.Dfu/Platforms/Android/Specific/DfuLogger.cs b/Laerdal.Dfu/Platforms/Android/Specific/DfuLogger.cs
index 8bc9eb2..3f4a58b 100644
--- a/Laerdal.Dfu/Platforms/Android/Specific/DfuLogger.cs
+++ b/Laerdal.Dfu/Platforms/Android/Specific/DfuLogger.cs
@@ -10,12 +10,14 @@ public class DfuLogger : Java.Lang.Object, Laerdal.Dfu.Bindings.Android.IDfuLogL
         public DfuLogger(string deviceAddress)
         {
             DeviceAddress = deviceAddress;
+
             Laerdal.Dfu.Bindings.Android.DfuServiceListenerHelper.RegisterLogListener(Android.App.Application.Context, this);
         }
 
         protected override void Dispose(bool disposing)
         {
             Laerdal.Dfu.Bindings.Android.DfuServiceListenerHelper.UnregisterLogListener(Android.App.Application.Context, this);
+
             base.Dispose(disposing);
         }
 
diff --git a/Laerdal.Dfu/Platforms/iOS/DfuInstallation.cs b/Laerdal.Dfu/Platforms/iOS/DfuInstallation.cs
index 28fbbea..1c00c0a 100644
--- a/Laerdal.Dfu/Platforms/iOS/DfuInstallation.cs
+++ b/Laerdal.Dfu/Platforms/iOS/DfuInstallation.cs
@@ -87,6 +87,7 @@ private void SetInitiator()
         public DfuInstallation(string deviceId, string fileUrl) : base(deviceId, fileUrl)
         {
         }
+
         public DfuInstallation() : base()
         {
         }
diff --git a/Laerdal.Dfu/Platforms/iOS/Specific/DfuPeripheralSelectorDelegate.cs b/Laerdal.Dfu/Platforms/iOS/Specific/DfuPeripheralSelectorDelegate.cs
index 6822105..20041ea 100644
--- a/Laerdal.Dfu/Platforms/iOS/Specific/DfuPeripheralSelectorDelegate.cs
+++ b/Laerdal.Dfu/Platforms/iOS/Specific/DfuPeripheralSelectorDelegate.cs
@@ -17,11 +17,7 @@ public override bool Select(CBPeripheral peripheral,
                                     NSNumber rssi,
                                     string name)
         {
-            if (DfuInstallation.DeviceId != peripheral.Identifier.ToString())
-            {
-                return false;
-            }
-            return true;
+            return DfuInstallation.DeviceId == peripheral.Identifier.ToString();
         }
     }
 }
\ No newline at end of file
diff --git a/Laerdal.Scripts/Laerdal.Builder.targets b/Laerdal.Scripts/Laerdal.Builder.targets
index 59ebbb0..a172cb2 100644
--- a/Laerdal.Scripts/Laerdal.Builder.targets
+++ b/Laerdal.Scripts/Laerdal.Builder.targets
@@ -1,12 +1,20 @@
 <?xml version="1.0" encoding="utf-8"?>
 
-<!--                                                                                  -->
-<!--        # on macos                                                                -->
-<!--        dotnet    msbuild    "Laerdal.Scripts/Laerdal.Builder.targets"            -->
-<!--                                                                                  -->
-<!--        # on windows powershell                                                   -->
-<!--        dotnet    msbuild    "Laerdal.Scripts\Laerdal.Builder.targets"            -->
-<!--                                                                                  -->
+<!-- to test stuff out on your localdev try these                                                              -->
+<!--                                                                                                           -->
+<!--   - to build with an explicit version specified in the cli:                                               -->
+<!--                                                                                                           -->
+<!--        # on macos                                                                                         -->
+<!--        dotnet    msbuild                                    \                                             -->
+<!--            Laerdal.Scripts/Laerdal.Builder.targets          \                                             -->
+<!--            '"/m:1"'  '"/p:Laerdal_Version=1.0.x.0"'                                                       -->
+<!--                                                                                                           -->
+<!--        # on windows powershell                                                                            -->
+<!--        dotnet   msbuild                                     ^                                             -->
+<!--            Laerdal.Scripts\Laerdal.Builder.targets          ^                                             -->
+<!--            /m:1   /p:Laerdal_Version=1.0.x.0                                                              -->
+<!--                                                                                                           -->
+
 <Project DefaultTargets="BuildProjects">
 
     <PropertyGroup>
@@ -31,14 +39,14 @@
         <Laerdal_Version_Build Condition=" '$(Laerdal_Version_Build)' == '' and '$(CI_PIPELINE_IID)'   != '' ">$([MSBuild]::Add(8, $(CI_PIPELINE_IID)))</Laerdal_Version_Build> <!-- GitLab, auto-increment from 0 -->
         <Laerdal_Version_Build Condition=" '$(Laerdal_Version_Build)' == ''                                  ">0</Laerdal_Version_Build> <!-- Fallback value -->
         
-        <Laerdal_Version_Base Condition=" '$(Laerdal_Version_Base)' == '' ">$(Laerdal_Version_Major).$(Laerdal_Version_Minor).$(Laerdal_Version_Build)</Laerdal_Version_Base>
+        <Laerdal_Version Condition=" '$(Laerdal_Version)' == '' ">$(Laerdal_Version_Major).$(Laerdal_Version_Minor).$(Laerdal_Version_Build)</Laerdal_Version>
     </PropertyGroup>
 
     <Target Name="PrintConfiguration">
         <Message Importance="High" Text="** Configuration           = '$(Configuration)'"/>
         <Message Importance="High" Text="** PackageOutputPath       = '$(PackageOutputPath)'"/>
 
-        <Message Importance="High" Text="** Laerdal_Version_Base    = '$(Laerdal_Version_Base)'"/>
+        <Message Importance="High" Text="** Laerdal_Version         = '$(Laerdal_Version)'"/>
         <Message Importance="High" Text="** Laerdal_Source_Branch   = '$(Laerdal_Source_Branch)'"/>
         <Message Importance="High" Text="** Laerdal_Repository_Path = '$(Laerdal_Repository_Path)'"/>
         <!-- <Message Importance="High" Text="** Laerdal_Github_Access_Token   ='$(Laerdal_Github_Access_Token)'"/> dont -->
@@ -48,13 +56,13 @@
     <Target Name="BuildProjects">
         <!-- REQUIRED PARAMETERS -->
         <Error Condition=" '$(Configuration)'        == '' " Text="'Configuration' has to be set. Please call this script again with the argument '/p:Configuration=...'" />
+        <Error Condition=" '$(Laerdal_Version)'      == '' " Text="'Laerdal_Version' has to be set. Please call this script again with the argument '/p:Laerdal_Version=...'" />
         <Error Condition=" '$(PackageOutputPath)'    == '' " Text="'PackageOutputPath' has to be set. Please call this script again with the argument '/p:PackageOutputPath=...'" />
-        <Error Condition=" '$(Laerdal_Version_Base)' == '' " Text="'Laerdal_Version_Base' has to be set. Please call this script again with the argument '/p:Laerdal_Version_Base=...'" />
 
         <!-- PARAMETERS -->
         <PropertyGroup>
             <_Laerdal_Build_Parameters>$(_Laerdal_Build_Parameters);Configuration=$(Configuration)</_Laerdal_Build_Parameters>
-            <_Laerdal_Build_Parameters>$(_Laerdal_Build_Parameters);Laerdal_Version=$(Laerdal_Version_Base)</_Laerdal_Build_Parameters>
+            <_Laerdal_Build_Parameters>$(_Laerdal_Build_Parameters);Laerdal_Version=$(Laerdal_Version)</_Laerdal_Build_Parameters>
             <_Laerdal_Build_Parameters>$(_Laerdal_Build_Parameters);PackageOutputPath=$(PackageOutputPath)</_Laerdal_Build_Parameters>
         </PropertyGroup>
         
@@ -67,7 +75,7 @@
             Condition=" '$(Laerdal_Should_Tag_And_Release)' == 'True' "
             AfterTargets="BuildProjects">
 
-        <Error Condition=" '$(Laerdal_Version_Base)'        == '' " Text="'Laerdal_Version_Base' has to be set. Please call this script again with the argument '/p:Laerdal_Version_Base=...'" />
+        <Error Condition=" '$(Laerdal_Version)'        == '' " Text="'Laerdal_Version' has to be set. Please call this script again with the argument '/p:Laerdal_Version=...'" />
         <Error Condition=" '$(Laerdal_Source_Branch)'       == '' " Text="'Laerdal_Source_Branch' has to be set. Please call this script again with the argument '/p:Laerdal_Source_Branch=...'" />
         <Error Condition=" '$(Laerdal_Repository_Path)'     == '' " Text="'Laerdal_Repository_Path' has to be set. Please call this script again with the argument '/p:Laerdal_Repository_Path=...'" />
         <Error Condition=" '$(Laerdal_Github_Access_Token)' == '' " Text="'Laerdal_Github_Access_Token' has to be set. Please call this script again with the argument '/p:Laerdal_Github_Access_Token=...'" />
@@ -76,7 +84,7 @@
             <Laerdal_Create_Github_Release_Script_Filepath Condition=" '$(Laerdal_Create_Github_Release_Script_Filepath)' == '' ">$([System.IO.Path]::Combine($(MSBuildThisFileDirectory), `Laerdal.CreateNewReleaseInGithub.sh`))</Laerdal_Create_Github_Release_Script_Filepath>
 
             <_Laerdal_Create_Github_Release_Script_Parameters>$(_Laerdal_Create_Github_Release_Script_Parameters) --git-branch       '$(Laerdal_Source_Branch)'</_Laerdal_Create_Github_Release_Script_Parameters>
-            <_Laerdal_Create_Github_Release_Script_Parameters>$(_Laerdal_Create_Github_Release_Script_Parameters) --tag-version      '$(Laerdal_Version_Base)'</_Laerdal_Create_Github_Release_Script_Parameters>
+            <_Laerdal_Create_Github_Release_Script_Parameters>$(_Laerdal_Create_Github_Release_Script_Parameters) --tag-version      '$(Laerdal_Version)'</_Laerdal_Create_Github_Release_Script_Parameters>
             <_Laerdal_Create_Github_Release_Script_Parameters>$(_Laerdal_Create_Github_Release_Script_Parameters) --access-token     '$(Laerdal_Github_Access_Token)'</_Laerdal_Create_Github_Release_Script_Parameters>
             <_Laerdal_Create_Github_Release_Script_Parameters>$(_Laerdal_Create_Github_Release_Script_Parameters) --repository-path  '$(Laerdal_Repository_Path)'</_Laerdal_Create_Github_Release_Script_Parameters>
         </PropertyGroup>
diff --git a/global.json b/global.json
new file mode 100644
index 0000000..237f5ce
--- /dev/null
+++ b/global.json
@@ -0,0 +1,7 @@
+{
+  "sdk": {
+    "version": "7.0.0",
+    "rollForward": "latestFeature",
+    "allowPrerelease": false
+  }
+}