diff --git a/.github/workflows/build-and-test.yml b/.github/workflows/build-and-test.yml
new file mode 100644
index 0000000000..b4a194bc58
--- /dev/null
+++ b/.github/workflows/build-and-test.yml
@@ -0,0 +1,116 @@
+name: Build
+
+on: 
+  push:
+    branches:
+      - master
+    tags: 
+      - 'v*'
+  pull_request:
+    branches:
+      - master
+    
+jobs:
+  Coverage:
+    runs-on:   windows-latest
+    needs: [Build]
+    steps:      
+    - uses: actions/checkout@v1
+    
+    - name: Enable long file paths
+      run: git config --global core.longpaths true
+      
+    - name: Update submodules
+      run: git submodule -q update --init
+ 
+    - name: Generate Test Coverage
+      shell: pwsh
+      run: ./tests/CodeCoverage/CodeCoverage.ps1
+      env:
+        CI : True
+
+    - name: Update codecov
+      uses: iansu/codecov-action-node@v1.0.0
+      with:
+        token: ${{secrets.CODECOV_TOKEN}}
+        file: "ImageSharp.Coverage.xml"
+        flags: unittests
+ 
+  Build:
+    strategy:
+        matrix:
+          options:
+            - os : ubuntu-latest
+              framework: netcoreapp2.1
+              is32Bit: False
+            - os : windows-latest
+              framework: netcoreapp2.1
+              is32Bit: False
+            - os : windows-latest
+              framework: net472
+              is32Bit: False
+            - os : windows-latest
+              framework: net472
+              is32Bit: True
+
+    runs-on:  ${{ matrix.options.os }}
+
+    steps:      
+    - uses: actions/checkout@v1
+    
+    - name: Enable long file paths
+      run: |
+        git config --global core.autocrlf false
+        git config --global core.longpaths true
+      
+    - name: Update submodules
+      run: git submodule -q update --init
+      
+    - name: Build
+      shell: pwsh
+      run: |
+        $DebugPreference = "Continue"
+        ./build.ps1 "${{matrix.options.framework}}"
+
+    - name: Test
+      shell: pwsh
+      run: ./run-tests.ps1 "${{matrix.options.framework}}" "${{matrix.options.is32Bit}}" true
+      env:
+        CI : True
+  
+  Publish:
+    runs-on: windows-latest
+    needs: [Build]
+    if : github.event_name == 'push'
+    steps:      
+    - uses: actions/checkout@v1
+    
+    - name: Enable long file paths
+      run: git config --global core.longpaths true
+      
+    - name: Update submodules
+      run: git submodule -q update --init
+      
+    - name: Build
+      shell: pwsh
+      run: |
+        $DebugPreference = "Continue"
+        ./build.ps1
+
+    - name : install nuget
+      if: success()
+      uses: warrenbuckley/Setup-Nuget@v1
+
+    - name: Configure feed
+      if: success()
+      run: nuget.exe source Add -Name "GitHub" -Source "https://nuget.pkg.github.com/sixlabors/index.json" -UserName ${{github.actor}} -Password ${{ secrets.GITHUB_TOKEN }}
+
+    - name: Publish to nightly feed - github
+      if: success()
+      run: nuget.exe push  -Source "GitHub" .\artifacts\*.nupkg
+
+    - name: Publish to nightly feed -myget
+      if: success()
+      run: nuget.exe push .\artifacts\*.nupkg ${{secrets.MYGET_TOKEN}} -Source https://www.myget.org/F/sixlabors/api/v2/package
+    
+    # todo if github.ref starts with 'refs/tags' then it was tag push and we can optionally push out package to nuget.org
\ No newline at end of file
diff --git a/.gitignore b/.gitignore
index d8f376a419..4007b1faba 100644
--- a/.gitignore
+++ b/.gitignore
@@ -221,3 +221,5 @@ artifacts/
 # Tests
 **/Images/ActualOutput
 **/Images/ReferenceOutput
+/tests/CodeCoverage/opencover.zip
+/tests/CodeCoverage/OpenCover.4.6.519
diff --git a/Directory.Build.props b/Directory.Build.props
index efe4cc9665..e865a83f85 100644
--- a/Directory.Build.props
+++ b/Directory.Build.props
@@ -14,7 +14,7 @@
   <PropertyGroup>
     <BaseArtifactsPath>$(MSBuildThisFileDirectory)artifacts/</BaseArtifactsPath>
     <BaseArtifactsPathSuffix>$(ImageSharpProjectCategory)/$(MSBuildProjectName)</BaseArtifactsPathSuffix>
-    <RepositoryUrl>https://github.com/SixLabors/ImageSharp/</RepositoryUrl>
+    <RepositoryUrl Condition="'$(RepositoryUrl)' == ''">https://github.com/SixLabors/ImageSharp/</RepositoryUrl>
   </PropertyGroup>
 
   <!-- Default settings that explicitly differ from the Sdk.props defaults  -->
diff --git a/build.ps1 b/build.ps1
index 215b551170..1bc7ff6cc1 100644
--- a/build.ps1
+++ b/build.ps1
@@ -1,20 +1,79 @@
+param(
+    [string]$targetFramework = 'ALL'
+)
 
 # lets calulat the correct version here
 $fallbackVersion = "1.0.0";
 $version = ''
 
-$tagRegex = '^v?(\d+\.\d+\.\d+)(-([a-zA-Z]+)\.?(\d*))?$'
+$tagRegex = '^v?(\d+\.\d+\.\d+)(?:-([a-zA-Z]+)\.?(\d*))?$'
+
+$skipFullFramework = 'false'
+
+# if we are trying to build only netcoreapp versions for testings then skip building the full framework targets
+if("$targetFramework".StartsWith("netcoreapp")){
+    $skipFullFramework = 'true'
+}
+
+function ToBuildNumber {
+    param( $date )
+    if("$date" -eq ""){
+        $date = [System.DateTime]::Now
+    }
+
+    if($date.GetType().fullname -ne 'System.DateTime'){
+        $date = [System.DateTime]::Parse($date)
+    }
+
+    
+    return $date.ToString("yyyyMMddhhmmss")
+}
+
+# if($IsWindows){
+#     $skipFullFramework = 'true'
+#     Write-Info "Building full framework targets - Running windows"
+# }else{
+#     if (Get-Command "mono" -ErrorAction SilentlyContinue) 
+#     {
+#         Write-Info "Building full framework targets - mono installed"
+#         $skipFullFramework = 'true'
+#     }
+# }
 
 # we are running on the build server 
 $isVersionTag = $env:APPVEYOR_REPO_TAG_NAME -match $tagRegex
 
+if($isVersionTag -eq $false){
+    $isVersionTag = "$env:GITHUB_REF".replace("refs/tags/", "") -match $tagRegex
+    if($isVersionTag){
+        Write-Debug "Github tagged build"
+    }
+}else{
+    Write-Debug "Appveyor tagged build"
+}
+
+if($isVersionTag -eq $false){
+    if( "$(git diff --stat)" -eq '')
+    {
+        Write-Debug "Clean repo"
+        if("$(git tag --list)" -ne "") {
+            Write-Debug "Has tags"
+            $tagData = (git describe --tags HEAD)
+            $isVersionTag = $tagData -match $tagRegex
+            Write-Debug $tagData
+        }
+    }else{
+        Write-Debug "Dirty repo"
+    }
+}
+
  if($isVersionTag) {
      
     Write-Debug "Building commit tagged with a compatable version number"
     
     $version = $matches[1]
-     $postTag = $matches[3]
-     $count = $matches[4]
+     $postTag = $matches[2]
+     $count = $matches[3]
      Write-Debug "version number: ${version} post tag: ${postTag} count: ${count}"
      if("$postTag" -ne ""){
         $version = "${version}-${postTag}"
@@ -53,8 +112,23 @@ $isVersionTag = $env:APPVEYOR_REPO_TAG_NAME -match $tagRegex
 
     $buildNumber = $env:APPVEYOR_BUILD_NUMBER
 
-    # build number replacement is padded to 6 places
-    $buildNumber = "$buildNumber".Trim().Trim('0').PadLeft(6,"0");
+    if("$buildNumber" -eq ""){
+        # no counter availible in this environment
+        # let make one up based on time
+
+        if( "$env:GITHUB_SHA" -ne ''){
+            $buildNumber = ToBuildNumber (git show -s --format=%ci $env:GITHUB_SHA)
+        }elseif( "$(git diff --stat)" -eq ''){
+            $buildNumber = ToBuildNumber (git show -s --format=%ci HEAD)
+        }else{
+            $buildNumber = ToBuildNumber
+        }
+        $buildNumber = "$buildNumber".Trim().Trim('0').PadLeft(12,"0");        
+    }else{
+        # build number replacement is padded to 6 places
+        $buildNumber = "$buildNumber".Trim().Trim('0').PadLeft(6,"0");
+    }
+
     if("$env:APPVEYOR_PULL_REQUEST_NUMBER" -ne ""){
         Write-Debug "building a PR"
         
@@ -77,7 +151,7 @@ $isVersionTag = $env:APPVEYOR_REPO_TAG_NAME -match $tagRegex
 
         $branch = $branch.Replace("/","-").ToLower()
 
-        if($branch.ToLower() -eq "master"){
+        if($branch.ToLower() -eq "master" -or $branch.ToLower() -eq "head"){
             $branch = "dev"
         }
         
@@ -94,10 +168,16 @@ if("$env:APPVEYOR_API_URL" -ne ""){
 }
 
 Write-Host "Building version '${version}'"
-dotnet restore /p:packageversion=$version /p:DisableImplicitNuGetFallbackFolder=true
+dotnet restore /p:packageversion=$version /p:DisableImplicitNuGetFallbackFolder=true /p:skipFullFramework=$skipFullFramework
+
+$repositoryUrl = "https://github.com/SixLabors/ImageSharp/"
+
+if("$env:GITHUB_REPOSITORY" -ne ""){
+    $repositoryUrl = "https://github.com/$env:GITHUB_REPOSITORY"
+}
 
 Write-Host "Building projects"
-dotnet build -c Release /p:packageversion=$version
+dotnet build -c Release /p:packageversion=$version /p:skipFullFramework=$skipFullFramework /p:RepositoryUrl=$repositoryUrl
 
 if ($LASTEXITCODE ){ Exit $LASTEXITCODE }
 
@@ -115,8 +195,8 @@ if ($LASTEXITCODE ){ Exit $LASTEXITCODE }
 if ($LASTEXITCODE ){ Exit $LASTEXITCODE }
 
 Write-Host "Packaging projects"
-dotnet pack ./src/ImageSharp/ -c Release --output ../../artifacts --no-build  /p:packageversion=$version
+dotnet pack ./src/ImageSharp/ -c Release --output "$PSScriptRoot/artifacts" --no-build  /p:packageversion=$version /p:skipFullFramework=$skipFullFramework /p:RepositoryUrl=$repositoryUrl
 if ($LASTEXITCODE ){ Exit $LASTEXITCODE }
 
-dotnet pack ./src/ImageSharp.Drawing/ -c Release --output ../../artifacts --no-build  /p:packageversion=$version
+dotnet pack ./src/ImageSharp.Drawing/ -c Release --output "$PSScriptRoot/artifacts" --no-build  /p:packageversion=$version /p:skipFullFramework=$skipFullFramework /p:RepositoryUrl=$repositoryUrl
 if ($LASTEXITCODE ){ Exit $LASTEXITCODE }
diff --git a/run-tests.ps1 b/run-tests.ps1
index 4aeaa14908..2d563c67e6 100644
--- a/run-tests.ps1
+++ b/run-tests.ps1
@@ -1,6 +1,7 @@
 param(
     [string]$targetFramework,
-    [string]$is32Bit = "False"
+    [string]$is32Bit = "False",
+    [string]$skipCodeCov = $false
 )
 
 if (!$targetFramework){
@@ -41,9 +42,9 @@ function CheckSubmoduleStatus() {
 }
 
 
-if ( ($targetFramework -eq "netcoreapp2.1") -and ($env:CI -eq "True") -and ($is32Bit -ne "True")) {
+if ( ($targetFramework -eq "netcoreapp2.1") -and ($env:CI -eq "True") -and ($is32Bit -ne "True") -and $skipCodeCov -ne $true) {
     # We execute CodeCoverage.cmd only for one specific job on CI (netcoreapp2.1 + 64bit )
-    $testRunnerCmd = ".\tests\CodeCoverage\CodeCoverage.cmd"
+    $testRunnerCmd = "./tests/CodeCoverage/CodeCoverage.ps1"
 }
 elseif ($targetFramework -eq "mono") {
     $testDllPath = "$PSScriptRoot\tests\ImageSharp.Tests\bin\Release\net462\SixLabors.ImageSharp.Tests.dll"
diff --git a/src/ImageSharp/ImageSharp.csproj b/src/ImageSharp/ImageSharp.csproj
index 86b0848663..e0d70193fe 100644
--- a/src/ImageSharp/ImageSharp.csproj
+++ b/src/ImageSharp/ImageSharp.csproj
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
+<?xml version="1.0" encoding="utf-8"?>
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
@@ -10,7 +10,8 @@
     <VersionPrefix Condition="$(packageversion) != ''">$(packageversion)</VersionPrefix>
     <VersionPrefix Condition="$(packageversion) == ''">0.0.1</VersionPrefix>
 
-    <TargetFrameworks>netcoreapp2.1;netstandard1.3;netstandard2.0;net472</TargetFrameworks>
+    <TargetFrameworks>netcoreapp2.1;netstandard1.3;netstandard2.0</TargetFrameworks>
+    <TargetFrameworks Condition="$(skipFullFramework) != 'true'">$(TargetFrameworks);net472</TargetFrameworks>
 
     <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
     <GenerateDocumentationFile>true</GenerateDocumentationFile>
diff --git a/tests/CodeCoverage/CodeCoverage.ps1 b/tests/CodeCoverage/CodeCoverage.ps1
new file mode 100644
index 0000000000..b7073998f9
--- /dev/null
+++ b/tests/CodeCoverage/CodeCoverage.ps1
@@ -0,0 +1,11 @@
+
+if((Test-Path("$PSScriptRoot\OpenCover.4.6.519")) -eq $false){
+    Invoke-WebRequest https://www.nuget.org/api/v2/package/OpenCover/4.7.922 -OutFile "$PSScriptRoot\opencover.zip"
+    [IO.Compression.Zipfile]::ExtractToDirectory("$PSScriptRoot\opencover.zip","$PSScriptRoot\OpenCover.4.6.519")
+}
+
+dotnet clean ImageSharp.sln -c Release
+
+& "$PSScriptRoot\OpenCover.4.6.519\tools\OpenCover.Console.exe" -target:"dotnet.exe" -targetargs:"test tests\ImageSharp.Tests\ImageSharp.Tests.csproj -c Release -f netcoreapp2.1 /p:skipFullFramework=true /p:codecov=true" -register:user -threshold:10 -oldStyle -safemode:off -output:.\ImageSharp.Coverage.xml -hideskipped:All -returntargetcode -filter:"+[SixLabors.ImageSharp*]*" 
+
+if ($LASTEXITCODE ){ Exit $LASTEXITCODE }
\ No newline at end of file
diff --git a/tests/ImageSharp.Benchmarks/ImageSharp.Benchmarks.csproj b/tests/ImageSharp.Benchmarks/ImageSharp.Benchmarks.csproj
index a57d388a95..ee0b2985f0 100644
--- a/tests/ImageSharp.Benchmarks/ImageSharp.Benchmarks.csproj
+++ b/tests/ImageSharp.Benchmarks/ImageSharp.Benchmarks.csproj
@@ -1,11 +1,12 @@
-<?xml version="1.0" encoding="utf-8"?>
+<?xml version="1.0" encoding="utf-8"?>
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
     <AssemblyName>ImageSharp.Benchmarks</AssemblyName>
     <OutputType>Exe</OutputType>
     <RootNamespace>SixLabors.ImageSharp.Benchmarks</RootNamespace>
-    <TargetFrameworks>netcoreapp2.1;net472</TargetFrameworks>
+    <TargetFrameworks>netcoreapp2.1</TargetFrameworks>
+    <TargetFrameworks Condition="$(skipFullFramework) != 'true'">$(TargetFrameworks);net472</TargetFrameworks>
     <IsPackable>false</IsPackable>
     <GenerateProgramFile>false</GenerateProgramFile>
   </PropertyGroup>
diff --git a/tests/ImageSharp.Sandbox46/ImageSharp.Sandbox46.csproj b/tests/ImageSharp.Sandbox46/ImageSharp.Sandbox46.csproj
index fc94668e11..b0826dcbed 100644
--- a/tests/ImageSharp.Sandbox46/ImageSharp.Sandbox46.csproj
+++ b/tests/ImageSharp.Sandbox46/ImageSharp.Sandbox46.csproj
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
+<?xml version="1.0" encoding="utf-8"?>
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
@@ -8,7 +8,9 @@
     <Prefer32Bit>false</Prefer32Bit>
     <RootNamespace>SixLabors.ImageSharp.Sandbox46</RootNamespace>
     <RuntimeIdentifier>win7-x64</RuntimeIdentifier>
-    <TargetFramework>net472</TargetFramework>
+    <TargetFrameworks>netcoreapp2.1</TargetFrameworks>
+    <TargetFrameworks Condition="$(skipFullFramework) != 'true'">$(TargetFrameworks);net472</TargetFrameworks>
+    <StartupObject>SixLabors.ImageSharp.Sandbox46.Program</StartupObject>
   </PropertyGroup>
 
   <ItemGroup>
@@ -18,6 +20,7 @@
   <ItemGroup>
     <PackageReference Include="Magick.NET-Q16-AnyCPU" />
     <PackageReference Include="Moq" />
+    <PackageReference Include="System.Drawing.Common" />
   </ItemGroup>
 
   <ItemGroup>
diff --git a/tests/ImageSharp.Tests/ImageSharp.Tests.csproj b/tests/ImageSharp.Tests/ImageSharp.Tests.csproj
index 1ac5f8085a..3bd5f6af2d 100644
--- a/tests/ImageSharp.Tests/ImageSharp.Tests.csproj
+++ b/tests/ImageSharp.Tests/ImageSharp.Tests.csproj
@@ -1,8 +1,9 @@
-<?xml version="1.0" encoding="utf-8"?>
+<?xml version="1.0" encoding="utf-8"?>
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFrameworks>netcoreapp2.1;net462;net472</TargetFrameworks>
+    <TargetFrameworks>netcoreapp2.1</TargetFrameworks>
+    <TargetFrameworks Condition="$(skipFullFramework) != 'true'">$(TargetFrameworks);net462;net472</TargetFrameworks>
     <AllowUnsafeBlocks>True</AllowUnsafeBlocks>
     <LangVersion>latest</LangVersion>
     <DebugType Condition="$(codecov) != ''">full</DebugType>