diff --git a/.github/workflows/ci-cd.yml b/.github/workflows/ci-cd.yml
index a8b7e502..6d94ecc3 100644
--- a/.github/workflows/ci-cd.yml
+++ b/.github/workflows/ci-cd.yml
@@ -87,7 +87,7 @@ jobs:
       - name: Publish Test Results
         uses: EnricoMi/publish-unit-test-result-action/windows@v2
         with:
-          files: '**/TestResults.xml'
+          files: '**/*TestResults.trx'
 
       - name: Create NuGet packages
         shell: cmd
diff --git a/build/FLExBridge.proj b/build/FLExBridge.proj
index ef17557a..325843a3 100644
--- a/build/FLExBridge.proj
+++ b/build/FLExBridge.proj
@@ -1,7 +1,6 @@
 <Project xmlns="http://schemas.microsoft.com/developer/msbuild/2003" DefaultTargets="Build;Pack">
 	<PropertyGroup>
-		<RootDir Condition="'$(teamcity_build_checkoutDir)' == '' And '$(RootDir)'==''">$(MSBuildProjectDirectory)/..</RootDir>
-		<RootDir Condition="'$(teamcity_build_checkoutDir)' != ''">$(teamcity_build_checkoutDir)</RootDir>
+		<RootDir>$(MSBuildProjectDirectory)/..</RootDir>
 		<Configuration Condition="'$(Configuration)'==''">Debug</Configuration>
 		<Platform>Any CPU</Platform>
 		<Solution>FLExBridge.sln</Solution>
@@ -10,24 +9,19 @@
 		<BUILD_VCS_NUMBER Condition="'$(BUILD_VCS_NUMBER)' == ''">0</BUILD_VCS_NUMBER>
 		<BUILD_NUMBER Condition="'$(BUILD_NUMBER)' == ''">0</BUILD_NUMBER>
 		<ExtraExcludeCategories Condition="'$(OS)'!='Windows_NT'">KnownMonoIssue,UnknownMonoIssue</ExtraExcludeCategories>
-		<ExtraExcludeCategories Condition="'$(teamcity_version)' != ''">SkipOnTeamCity,$(ExtraExcludeCategories)</ExtraExcludeCategories>
+		<ExtraExcludeCategories Condition="'$(GITHUB_ACTIONS)' != ''">SkipOnCI,$(ExtraExcludeCategories)</ExtraExcludeCategories>
 		<Release Condition="'$(Release)' == ''">true</Release>
 		<PalasoVer4LinuxGecko Condition="'$(OS)'!='Windows_NT'">10.0.0-beta0081</PalasoVer4LinuxGecko>
 		<GitVersionMsBuildProps>$(RootDir)/packages/GitVersion.MsBuild/build/GitVersion.MsBuild.props</GitVersionMsBuildProps>
 		<GitVersionMsBuildTargets>$(RootDir)/packages/GitVersion.MsBuild/build/GitVersion.MsBuild.targets</GitVersionMsBuildTargets>
 		<SILBuildTasksDLL>$(RootDir)/packages/SIL.BuildTasks/tools/SIL.BuildTasks.dll</SILBuildTasksDLL>
 		<SILReleaseTasksProps>$(RootDir)/packages/SIL.ReleaseTasks/build/SIL.ReleaseTasks.props</SILReleaseTasksProps>
-		<NUnitToolsDir>$(RootDir)/packages/NUnit.ConsoleRunner/tools</NUnitToolsDir>
-		<NUnitConsoleRunner>$(NUnitToolsDir)/nunit3-console.exe</NUnitConsoleRunner>
-		<BuildDependencyTasksDLL>$(RootDir)/packages/BuildDependencyTasks/BuildDependencyTasks.dll</BuildDependencyTasksDLL>
 		<RestartBuild Condition="!Exists('$(GitVersionMsBuildProps)') Or !Exists('$(GitVersionMsBuildTargets)') Or !Exists('$(SILBuildTasksDLL)') Or !Exists('$(SILReleaseTasksProps)') Or !Exists('$(NUnitConsoleRunner)') Or !Exists('$(BuildDependencyTasksDLL)')">true</RestartBuild>
 		<RestartBuild Condition="Exists('$(GitVersionMsBuildProps)') And Exists('$(GitVersionMsBuildTargets)') And Exists('$(SILBuildTasksDLL)') And Exists('$(SILReleaseTasksProps)') And Exists('$(NUnitConsoleRunner)') And Exists('$(BuildDependencyTasksDLL)')">false</RestartBuild>
 		<IgnoreGitVersionTask Condition="'$(IgnoreGitVersionTask)' == ''">false</IgnoreGitVersionTask>
 		<MSBuildTasksTargets>$(RootDir)/packages/MSBuildTasks.1.5.0.235/tools/MSBuild.Community.Tasks.Targets</MSBuildTasksTargets>
 		<GetVersion Condition="'$(GetVersion)' == ''">true</GetVersion>
 		<WriteVersionInfoToBuildLog Condition="'$(WriteVersionInfoToBuildLog)' == ''">true</WriteVersionInfoToBuildLog>
-		<TeamCity Condition="'$(teamcity_version)' != ''">true</TeamCity>
-		<TeamCity Condition="'$(teamcity_version)' == ''">false</TeamCity>
 <!--		note this does not set the TargetFramework for the csproj files, it's just used as a variable to configure build paths-->
 		<TargetFramework Condition="'$(TargetFramework)' == ''">net462</TargetFramework>
 	</PropertyGroup>
@@ -44,9 +38,6 @@
 	<UsingTask TaskName="Split" AssemblyFile="$(SILBuildTasksDLL)" Condition="Exists('$(SILBuildTasksDLL)')"/>
 	<UsingTask TaskName="SIL.BuildTasks.FileUpdate" AssemblyFile="$(SILBuildTasksDLL)" Condition="Exists('$(SILBuildTasksDLL)')"/>
 	<UsingTask TaskName="MakeWixForDirTree" AssemblyFile="$(SILBuildTasksDLL)" Condition="Exists('$(SILBuildTasksDLL)') And '$(OS)'=='Windows_NT'"/>
-	<UsingTask TaskName="NUnit3"
-		AssemblyFile="$(SILBuildTasksDLL)"
-		Condition="Exists('$(SILBuildTasksDLL)')" />
 
 	<!-- a few do-nothing targets to get rid of some warnings from GitVersion.MsBuild.targets -->
 	<Target Name="GetAssemblyVersion"/>
@@ -203,19 +194,14 @@
 
 	<Target Name="TestOnly">
 		<ItemGroup>
-			<TestAssemblies Include="$(RootDir)/output/$(Configuration)/$(TargetFramework)/*Tests.dll" />
+			<!-- Include test assemblies and exclude unwanted ones -->
+			<TestAssemblies Include="$(RootDir)/output/$(Configuration)/$(TargetFramework)/*Tests.dll" 
+							Exclude="**/SIL.LCModel.Utils.Tests.dll" />
 		</ItemGroup>
 
-		<NUnit3 Assemblies="@(TestAssemblies)"
-			ToolPath="$(NUnitToolsDir)"
-			TestInNewThread="false"
-			ExcludeCategory="$(ExtraExcludeCategories)"
-			WorkingDirectory="$(RootDir)/output/$(Configuration)/$(TargetFramework)"
-			Process="single"
-			Verbose="true"
-			UseNUnit3Xml="false"
-			OutputXmlFile="$(RootDir)/output/$(Configuration)/$(TargetFramework)/TestResults.xml"
-			TeamCity="$(TeamCity)"/>
+		<!-- Loop over each TestAssembly and execute dotnet test -->
+		<Exec Command="dotnet test --no-build --verbosity detailed --logger &quot;trx;LogFileName=%(TestAssemblies.Filename)TestResults.trx&quot; --filter &quot;TestCategory!=$(ExtraExcludeCategories)&quot; &quot;%(TestAssemblies.FullPath)&quot;"
+			  Condition="Exists('%(TestAssemblies.FullPath)')" />
 	</Target>
 
 	<Target Name="Pack" DependsOnTargets="RestorePackages">