C#/netcore: Add base desktop game export implementation

This base implementation is still very barebones but it defines the path
for how exporting will work (at least when embedding the .NET runtime).

Many manual steps are still needed, which should be automatized in the
future. For example, in addition to the API assemblies, now you also
need to copy the GodotPlugins assembly to each game project.

20 files changed, 699 insertions, 811 deletions

diff --git a/modules/mono/editor/GodotTools/GodotTools.ProjectEditor/ProjectGenerator.cs b/modules/mono/editor/GodotTools/GodotTools.ProjectEditor/ProjectGenerator.cs
index c549cf5f12..d921e2f6a2 100644
--- a/modules/mono/editor/GodotTools/GodotTools.ProjectEditor/ProjectGenerator.cs
+++ b/modules/mono/editor/GodotTools/GodotTools.ProjectEditor/ProjectGenerator.cs
@@ -1,4 +1,5 @@
 using System;
+using System.Globalization;
 using System.IO;
 using System.Text;
 using Microsoft.Build.Construction;
@@ -45,7 +46,7 @@ namespace GodotTools.ProjectEditor
             // Save (without BOM)
             root.Save(path, new UTF8Encoding(encoderShouldEmitUTF8Identifier: false));
 
-            return Guid.NewGuid().ToString().ToUpper();
+            return Guid.NewGuid().ToString().ToUpperInvariant();
         }
     }
 }
diff --git a/modules/mono/editor/GodotTools/GodotTools.ProjectEditor/ProjectUtils.cs b/modules/mono/editor/GodotTools/GodotTools.ProjectEditor/ProjectUtils.cs
index 9b921c517c..7b1d5c228a 100644
--- a/modules/mono/editor/GodotTools/GodotTools.ProjectEditor/ProjectUtils.cs
+++ b/modules/mono/editor/GodotTools/GodotTools.ProjectEditor/ProjectUtils.cs
@@ -19,8 +19,15 @@ namespace GodotTools.ProjectEditor
 
     public static class ProjectUtils
     {
-        public static void MSBuildLocatorRegisterDefaults()
-            => Microsoft.Build.Locator.MSBuildLocator.RegisterDefaults();
+        public static void MSBuildLocatorRegisterDefaults(out Version version, out string path)
+        {
+            var instance = Microsoft.Build.Locator.MSBuildLocator.RegisterDefaults();
+            version = instance.Version;
+            path = instance.MSBuildPath;
+        }
+
+        public static void MSBuildLocatorRegisterMSBuildPath(string msbuildPath)
+            => Microsoft.Build.Locator.MSBuildLocator.RegisterMSBuildPath(msbuildPath);
 
         public static MSBuildProject Open(string path)
         {
diff --git a/modules/mono/editor/GodotTools/GodotTools.sln b/modules/mono/editor/GodotTools/GodotTools.sln
index 415e49b426..f3d2f90f39 100644
--- a/modules/mono/editor/GodotTools/GodotTools.sln
+++ b/modules/mono/editor/GodotTools/GodotTools.sln
@@ -15,6 +15,8 @@ Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "GodotTools.OpenVisualStudio
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "GodotTools.Shared", "GodotTools.Shared\GodotTools.Shared.csproj", "{2758FFAF-8237-4CF2-B569-66BF8B3587BB}"
 EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Godot.SourceGenerators", "..\Godot.NET.Sdk\Godot.SourceGenerators\Godot.SourceGenerators.csproj", "{D8C421B2-8911-41EB-B983-F675C7141EB7}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -49,5 +51,9 @@ Global
 		{2758FFAF-8237-4CF2-B569-66BF8B3587BB}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{2758FFAF-8237-4CF2-B569-66BF8B3587BB}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{2758FFAF-8237-4CF2-B569-66BF8B3587BB}.Release|Any CPU.Build.0 = Release|Any CPU
+		{D8C421B2-8911-41EB-B983-F675C7141EB7}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{D8C421B2-8911-41EB-B983-F675C7141EB7}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{D8C421B2-8911-41EB-B983-F675C7141EB7}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{D8C421B2-8911-41EB-B983-F675C7141EB7}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 EndGlobal
diff --git a/modules/mono/editor/GodotTools/GodotTools/Build/BuildInfo.cs b/modules/mono/editor/GodotTools/GodotTools/Build/BuildInfo.cs
index 28bf57dc21..18073d6492 100644
--- a/modules/mono/editor/GodotTools/GodotTools/Build/BuildInfo.cs
+++ b/modules/mono/editor/GodotTools/GodotTools/Build/BuildInfo.cs
@@ -4,26 +4,36 @@ using Godot.Collections;
 using GodotTools.Internals;
 using Path = System.IO.Path;
 
+#nullable enable
+
 namespace GodotTools.Build
 {
     [Serializable]
-    public sealed class BuildInfo : RefCounted // TODO Remove RefCounted once we have proper serialization
+    public sealed partial class BuildInfo : RefCounted // TODO Remove RefCounted once we have proper serialization
     {
         public string Solution { get; }
-        public string[] Targets { get; }
         public string Configuration { get; }
+        public string? RuntimeIdentifier { get; }
+        public string? PublishOutputDir { get; }
         public bool Restore { get; }
+        public bool Rebuild { get; }
+        public bool OnlyClean { get; }
+
         // TODO Use List once we have proper serialization
         public Array<string> CustomProperties { get; } = new Array<string>();
 
-        public string LogsDirPath => Path.Combine(GodotSharpDirs.BuildLogsDirs, $"{Solution.MD5Text()}_{Configuration}");
+        public string LogsDirPath =>
+            Path.Combine(GodotSharpDirs.BuildLogsDirs, $"{Solution.MD5Text()}_{Configuration}");
 
-        public override bool Equals(object obj)
+        public override bool Equals(object? obj)
         {
             if (obj is BuildInfo other)
-                return other.Solution == Solution && other.Targets == Targets &&
-                       other.Configuration == Configuration && other.Restore == Restore &&
-                       other.CustomProperties == CustomProperties && other.LogsDirPath == LogsDirPath;
+                return other.Solution == Solution &&
+                       other.Configuration == Configuration && other.RuntimeIdentifier == RuntimeIdentifier &&
+                       other.PublishOutputDir == PublishOutputDir && other.Restore == Restore &&
+                       other.Rebuild == Rebuild && other.OnlyClean == OnlyClean &&
+                       other.CustomProperties == CustomProperties &&
+                       other.LogsDirPath == LogsDirPath;
 
             return false;
         }
@@ -34,25 +44,37 @@ namespace GodotTools.Build
             {
                 int hash = 17;
                 hash = (hash * 29) + Solution.GetHashCode();
-                hash = (hash * 29) + Targets.GetHashCode();
                 hash = (hash * 29) + Configuration.GetHashCode();
+                hash = (hash * 29) + (RuntimeIdentifier?.GetHashCode() ?? 0);
+                hash = (hash * 29) + (PublishOutputDir?.GetHashCode() ?? 0);
                 hash = (hash * 29) + Restore.GetHashCode();
+                hash = (hash * 29) + Rebuild.GetHashCode();
+                hash = (hash * 29) + OnlyClean.GetHashCode();
                 hash = (hash * 29) + CustomProperties.GetHashCode();
                 hash = (hash * 29) + LogsDirPath.GetHashCode();
                 return hash;
             }
         }
 
-        private BuildInfo()
+        public BuildInfo(string solution, string configuration, bool restore, bool rebuild, bool onlyClean)
         {
+            Solution = solution;
+            Configuration = configuration;
+            Restore = restore;
+            Rebuild = rebuild;
+            OnlyClean = onlyClean;
         }
 
-        public BuildInfo(string solution, string[] targets, string configuration, bool restore)
+        public BuildInfo(string solution, string configuration, string runtimeIdentifier,
+            string publishOutputDir, bool restore, bool rebuild, bool onlyClean)
         {
             Solution = solution;
-            Targets = targets;
             Configuration = configuration;
+            RuntimeIdentifier = runtimeIdentifier;
+            PublishOutputDir = publishOutputDir;
             Restore = restore;
+            Rebuild = rebuild;
+            OnlyClean = onlyClean;
         }
     }
 }
diff --git a/modules/mono/editor/GodotTools/GodotTools/Build/BuildManager.cs b/modules/mono/editor/GodotTools/GodotTools/Build/BuildManager.cs
index 58677625c6..43256953f5 100644
--- a/modules/mono/editor/GodotTools/GodotTools/Build/BuildManager.cs
+++ b/modules/mono/editor/GodotTools/GodotTools/Build/BuildManager.cs
@@ -2,11 +2,9 @@ using System;
 using System.Diagnostics.CodeAnalysis;
 using System.IO;
 using System.Threading.Tasks;
-using GodotTools.Ides.Rider;
+using Godot;
 using GodotTools.Internals;
-using static GodotTools.Internals.Globals;
 using File = GodotTools.Utils.File;
-using OS = GodotTools.Utils.OS;
 
 namespace GodotTools.Build
 {
@@ -14,13 +12,8 @@ namespace GodotTools.Build
     {
         private static BuildInfo _buildInProgress;
 
-        public const string PropNameMSBuildMono = "MSBuild (Mono)";
-        public const string PropNameMSBuildVs = "MSBuild (VS Build Tools)";
-        public const string PropNameMSBuildJetBrains = "MSBuild (JetBrains Rider)";
-        public const string PropNameDotnetCli = "dotnet CLI";
-
         public const string MsBuildIssuesFileName = "msbuild_issues.csv";
-        public const string MsBuildLogFileName = "msbuild_log.txt";
+        private const string MsBuildLogFileName = "msbuild_log.txt";
 
         public delegate void BuildLaunchFailedEventHandler(BuildInfo buildInfo, string reason);
 
@@ -62,11 +55,11 @@ namespace GodotTools.Build
 
         private static void PrintVerbose(string text)
         {
-            if (Godot.OS.IsStdoutVerbose())
-                Godot.GD.Print(text);
+            if (OS.IsStdoutVerbose())
+                GD.Print(text);
         }
 
-        public static bool Build(BuildInfo buildInfo)
+        private static bool Build(BuildInfo buildInfo)
         {
             if (_buildInProgress != null)
                 throw new InvalidOperationException("A build is already in progress");
@@ -103,7 +96,8 @@ namespace GodotTools.Build
                 }
                 catch (Exception e)
                 {
-                    BuildLaunchFailed?.Invoke(buildInfo, $"The build method threw an exception.\n{e.GetType().FullName}: {e.Message}");
+                    BuildLaunchFailed?.Invoke(buildInfo,
+                        $"The build method threw an exception.\n{e.GetType().FullName}: {e.Message}");
                     Console.Error.WriteLine(e);
                     return false;
                 }
@@ -148,7 +142,8 @@ namespace GodotTools.Build
                 }
                 catch (Exception e)
                 {
-                    BuildLaunchFailed?.Invoke(buildInfo, $"The build method threw an exception.\n{e.GetType().FullName}: {e.Message}");
+                    BuildLaunchFailed?.Invoke(buildInfo,
+                        $"The build method threw an exception.\n{e.GetType().FullName}: {e.Message}");
                     Console.Error.WriteLine(e);
                     return false;
                 }
@@ -159,18 +154,54 @@ namespace GodotTools.Build
             }
         }
 
-        public static bool BuildProjectBlocking(string config, [MaybeNull] string[] targets = null, [MaybeNull] string platform = null)
+        private static bool Publish(BuildInfo buildInfo)
         {
-            var buildInfo = new BuildInfo(GodotSharpDirs.ProjectSlnPath, targets ?? new[] {"Build"}, config, restore: true);
+            if (_buildInProgress != null)
+                throw new InvalidOperationException("A build is already in progress");
 
-            // If a platform was not specified, try determining the current one. If that fails, let MSBuild auto-detect it.
-            if (platform != null || OS.PlatformNameMap.TryGetValue(Godot.OS.GetName(), out platform))
-                buildInfo.CustomProperties.Add($"GodotTargetPlatform={platform}");
+            _buildInProgress = buildInfo;
 
-            if (Internal.GodotIsRealTDouble())
-                buildInfo.CustomProperties.Add("GodotRealTIsDouble=true");
+            try
+            {
+                BuildStarted?.Invoke(buildInfo);
+
+                // Required in order to update the build tasks list
+                Internal.GodotMainIteration();
 
-            return BuildProjectBlocking(buildInfo);
+                try
+                {
+                    RemoveOldIssuesFile(buildInfo);
+                }
+                catch (IOException e)
+                {
+                    BuildLaunchFailed?.Invoke(buildInfo, $"Cannot remove issues file: {GetIssuesFilePath(buildInfo)}");
+                    Console.Error.WriteLine(e);
+                }
+
+                try
+                {
+                    int exitCode = BuildSystem.Publish(buildInfo, StdOutputReceived, StdErrorReceived);
+
+                    if (exitCode != 0)
+                        PrintVerbose(
+                            $"dotnet publish exited with code: {exitCode}. Log file: {GetLogFilePath(buildInfo)}");
+
+                    BuildFinished?.Invoke(exitCode == 0 ? BuildResult.Success : BuildResult.Error);
+
+                    return exitCode == 0;
+                }
+                catch (Exception e)
+                {
+                    BuildLaunchFailed?.Invoke(buildInfo,
+                        $"The publish method threw an exception.\n{e.GetType().FullName}: {e.Message}");
+                    Console.Error.WriteLine(e);
+                    return false;
+                }
+            }
+            finally
+            {
+                _buildInProgress = null;
+            }
         }
 
         private static bool BuildProjectBlocking(BuildInfo buildInfo)
@@ -178,20 +209,109 @@ namespace GodotTools.Build
             if (!File.Exists(buildInfo.Solution))
                 return true; // No solution to build
 
-            using (var pr = new EditorProgress("mono_project_debug_build", "Building project solution...", 1))
+            using var pr = new EditorProgress("dotnet_build_project", "Building .NET project...", 1);
+
+            pr.Step("Building project solution", 0);
+
+            if (!Build(buildInfo))
             {
-                pr.Step("Building project solution", 0);
+                ShowBuildErrorDialog("Failed to build project solution");
+                return false;
+            }
 
-                if (!Build(buildInfo))
-                {
-                    ShowBuildErrorDialog("Failed to build project solution");
-                    return false;
-                }
+            return true;
+        }
+
+        private static bool CleanProjectBlocking(BuildInfo buildInfo)
+        {
+            if (!File.Exists(buildInfo.Solution))
+                return true; // No solution to clean
+
+            using var pr = new EditorProgress("dotnet_clean_project", "Cleaning .NET project...", 1);
+
+            pr.Step("Cleaning project solution", 0);
+
+            if (!Build(buildInfo))
+            {
+                ShowBuildErrorDialog("Failed to clean project solution");
+                return false;
             }
 
             return true;
         }
 
+        private static bool PublishProjectBlocking(BuildInfo buildInfo)
+        {
+            using var pr = new EditorProgress("dotnet_publish_project", "Publishing .NET project...", 1);
+
+            pr.Step("Running dotnet publish", 0);
+
+            if (!Publish(buildInfo))
+            {
+                ShowBuildErrorDialog("Failed to publish .NET project");
+                return false;
+            }
+
+            return true;
+        }
+
+        private static BuildInfo CreateBuildInfo(
+            [DisallowNull] string configuration,
+            [AllowNull] string platform = null,
+            bool rebuild = false,
+            bool onlyClean = false
+        )
+        {
+            var buildInfo = new BuildInfo(GodotSharpDirs.ProjectSlnPath, configuration,
+                restore: true, rebuild, onlyClean);
+
+            // If a platform was not specified, try determining the current one. If that fails, let MSBuild auto-detect it.
+            if (platform != null || Utils.OS.PlatformNameMap.TryGetValue(OS.GetName(), out platform))
+                buildInfo.CustomProperties.Add($"GodotTargetPlatform={platform}");
+
+            if (Internal.GodotIsRealTDouble())
+                buildInfo.CustomProperties.Add("GodotRealTIsDouble=true");
+
+            return buildInfo;
+        }
+
+        private static BuildInfo CreatePublishBuildInfo(
+            [DisallowNull] string configuration,
+            [DisallowNull] string platform,
+            [DisallowNull] string runtimeIdentifier,
+            [DisallowNull] string publishOutputDir
+        )
+        {
+            var buildInfo = new BuildInfo(GodotSharpDirs.ProjectSlnPath, configuration,
+                runtimeIdentifier, publishOutputDir, restore: true, rebuild: false, onlyClean: false);
+
+            buildInfo.CustomProperties.Add($"GodotTargetPlatform={platform}");
+
+            if (Internal.GodotIsRealTDouble())
+                buildInfo.CustomProperties.Add("GodotRealTIsDouble=true");
+
+            return buildInfo;
+        }
+
+        public static bool BuildProjectBlocking(
+            [DisallowNull] string configuration,
+            [AllowNull] string platform = null,
+            bool rebuild = false
+        ) => BuildProjectBlocking(CreateBuildInfo(configuration, platform, rebuild));
+
+        public static bool CleanProjectBlocking(
+            [DisallowNull] string configuration,
+            [AllowNull] string platform = null
+        ) => CleanProjectBlocking(CreateBuildInfo(configuration, platform, rebuild: false));
+
+        public static bool PublishProjectBlocking(
+            [DisallowNull] string configuration,
+            [DisallowNull] string platform,
+            [DisallowNull] string runtimeIdentifier,
+            string publishOutputDir
+        ) => PublishProjectBlocking(CreatePublishBuildInfo(configuration,
+            platform, runtimeIdentifier, publishOutputDir));
+
         public static bool EditorBuildCallback()
         {
             if (!File.Exists(GodotSharpDirs.ProjectSlnPath))
@@ -204,7 +324,7 @@ namespace GodotTools.Build
             }
             catch (Exception e)
             {
-                Godot.GD.PushError("Failed to setup Godot NuGet Offline Packages: " + e.Message);
+                GD.PushError("Failed to setup Godot NuGet Offline Packages: " + e.Message);
             }
 
             if (GodotSharpEditor.Instance.SkipBuildBeforePlaying)
@@ -215,47 +335,6 @@ namespace GodotTools.Build
 
         public static void Initialize()
         {
-            // Build tool settings
-            var editorSettings = GodotSharpEditor.Instance.GetEditorInterface().GetEditorSettings();
-
-            BuildTool msbuildDefault;
-
-            if (OS.IsWindows)
-            {
-                if (RiderPathManager.IsExternalEditorSetToRider(editorSettings))
-                    msbuildDefault = BuildTool.JetBrainsMsBuild;
-                else
-                    msbuildDefault = !string.IsNullOrEmpty(OS.PathWhich("dotnet")) ? BuildTool.DotnetCli : BuildTool.MsBuildVs;
-            }
-            else
-            {
-                msbuildDefault = !string.IsNullOrEmpty(OS.PathWhich("dotnet")) ? BuildTool.DotnetCli : BuildTool.MsBuildMono;
-            }
-
-            EditorDef("mono/builds/build_tool", msbuildDefault);
-
-            string hintString;
-
-            if (OS.IsWindows)
-            {
-                hintString = $"{PropNameMSBuildMono}:{(int)BuildTool.MsBuildMono}," +
-                             $"{PropNameMSBuildVs}:{(int)BuildTool.MsBuildVs}," +
-                             $"{PropNameMSBuildJetBrains}:{(int)BuildTool.JetBrainsMsBuild}," +
-                             $"{PropNameDotnetCli}:{(int)BuildTool.DotnetCli}";
-            }
-            else
-            {
-                hintString = $"{PropNameMSBuildMono}:{(int)BuildTool.MsBuildMono}," +
-                             $"{PropNameDotnetCli}:{(int)BuildTool.DotnetCli}";
-            }
-
-            editorSettings.AddPropertyInfo(new Godot.Collections.Dictionary
-            {
-                ["type"] = Godot.Variant.Type.Int,
-                ["name"] = "mono/builds/build_tool",
-                ["hint"] = Godot.PropertyHint.Enum,
-                ["hint_string"] = hintString
-            });
         }
     }
 }
diff --git a/modules/mono/editor/GodotTools/GodotTools/Build/BuildOutputView.cs b/modules/mono/editor/GodotTools/GodotTools/Build/BuildOutputView.cs
index ed5ee10585..f7b8c6bffd 100644
--- a/modules/mono/editor/GodotTools/GodotTools/Build/BuildOutputView.cs
+++ b/modules/mono/editor/GodotTools/GodotTools/Build/BuildOutputView.cs
@@ -8,10 +8,10 @@ using Path = System.IO.Path;
 
 namespace GodotTools.Build
 {
-    public class BuildOutputView : VBoxContainer, ISerializationListener
+    public partial class BuildOutputView : VBoxContainer, ISerializationListener
     {
         [Serializable]
-        private class BuildIssue : RefCounted // TODO Remove RefCounted once we have proper serialization
+        private partial class BuildIssue : RefCounted // TODO Remove RefCounted once we have proper serialization
         {
             public bool Warning { get; set; }
             public string File { get; set; }
diff --git a/modules/mono/editor/GodotTools/GodotTools/Build/BuildSystem.cs b/modules/mono/editor/GodotTools/GodotTools/Build/BuildSystem.cs
index 0e793a44ba..d2e3ecff57 100644
--- a/modules/mono/editor/GodotTools/GodotTools/Build/BuildSystem.cs
+++ b/modules/mono/editor/GodotTools/GodotTools/Build/BuildSystem.cs
@@ -1,61 +1,93 @@
-using GodotTools.Core;
 using System;
 using System.Collections.Generic;
+using System.Collections.ObjectModel;
 using System.Collections.Specialized;
 using System.Diagnostics;
+using System.Globalization;
 using System.IO;
+using System.Text;
 using System.Threading.Tasks;
 using GodotTools.BuildLogger;
-using GodotTools.Internals;
 using GodotTools.Utils;
-using Directory = System.IO.Directory;
 
 namespace GodotTools.Build
 {
     public static class BuildSystem
     {
-        private static string MonoWindowsBinDir
+        private static Process LaunchBuild(BuildInfo buildInfo, Action<string> stdOutHandler,
+            Action<string> stdErrHandler)
         {
-            get
-            {
-                string monoWinBinDir = Path.Combine(Internal.MonoWindowsInstallRoot, "bin");
+            string dotnetPath = DotNetFinder.FindDotNetExe();
 
-                if (!Directory.Exists(monoWinBinDir))
-                    throw new FileNotFoundException("Cannot find the Windows Mono install bin directory.");
+            if (dotnetPath == null)
+                throw new FileNotFoundException("Cannot find the dotnet executable.");
 
-                return monoWinBinDir;
-            }
+            var startInfo = new ProcessStartInfo(dotnetPath);
+
+            BuildArguments(buildInfo, startInfo.ArgumentList);
+
+            string launchMessage = startInfo.GetCommandLineDisplay(new StringBuilder("Running: ")).ToString();
+            stdOutHandler?.Invoke(launchMessage);
+            if (Godot.OS.IsStdoutVerbose())
+                Console.WriteLine(launchMessage);
+
+            startInfo.RedirectStandardOutput = true;
+            startInfo.RedirectStandardError = true;
+            startInfo.UseShellExecute = false;
+            startInfo.CreateNoWindow = true;
+
+            // Needed when running from Developer Command Prompt for VS
+            RemovePlatformVariable(startInfo.EnvironmentVariables);
+
+            var process = new Process { StartInfo = startInfo };
+
+            if (stdOutHandler != null)
+                process.OutputDataReceived += (s, e) => stdOutHandler.Invoke(e.Data);
+            if (stdErrHandler != null)
+                process.ErrorDataReceived += (s, e) => stdErrHandler.Invoke(e.Data);
+
+            process.Start();
+
+            process.BeginOutputReadLine();
+            process.BeginErrorReadLine();
+
+            return process;
         }
 
-        private static Godot.EditorSettings EditorSettings =>
-            GodotSharpEditor.Instance.GetEditorInterface().GetEditorSettings();
+        public static int Build(BuildInfo buildInfo, Action<string> stdOutHandler, Action<string> stdErrHandler)
+        {
+            using (var process = LaunchBuild(buildInfo, stdOutHandler, stdErrHandler))
+            {
+                process.WaitForExit();
+
+                return process.ExitCode;
+            }
+        }
 
-        private static bool UsingMonoMsBuildOnWindows
+        public static async Task<int> BuildAsync(BuildInfo buildInfo, Action<string> stdOutHandler,
+            Action<string> stdErrHandler)
         {
-            get
+            using (var process = LaunchBuild(buildInfo, stdOutHandler, stdErrHandler))
             {
-                if (OS.IsWindows)
-                {
-                    return (BuildTool)EditorSettings.GetSetting("mono/builds/build_tool")
-                           == BuildTool.MsBuildMono;
-                }
+                await process.WaitForExitAsync();
 
-                return false;
+                return process.ExitCode;
             }
         }
 
-        private static Process LaunchBuild(BuildInfo buildInfo, Action<string> stdOutHandler, Action<string> stdErrHandler)
+        private static Process LaunchPublish(BuildInfo buildInfo, Action<string> stdOutHandler,
+            Action<string> stdErrHandler)
         {
-            (string msbuildPath, BuildTool buildTool) = MsBuildFinder.FindMsBuild();
+            string dotnetPath = DotNetFinder.FindDotNetExe();
 
-            if (msbuildPath == null)
-                throw new FileNotFoundException("Cannot find the MSBuild executable.");
+            if (dotnetPath == null)
+                throw new FileNotFoundException("Cannot find the dotnet executable.");
 
-            string compilerArgs = BuildArguments(buildTool, buildInfo);
+            var startInfo = new ProcessStartInfo(dotnetPath);
 
-            var startInfo = new ProcessStartInfo(msbuildPath, compilerArgs);
+            BuildPublishArguments(buildInfo, startInfo.ArgumentList);
 
-            string launchMessage = $"Running: \"{startInfo.FileName}\" {startInfo.Arguments}";
+            string launchMessage = startInfo.GetCommandLineDisplay(new StringBuilder("Running: ")).ToString();
             stdOutHandler?.Invoke(launchMessage);
             if (Godot.OS.IsStdoutVerbose())
                 Console.WriteLine(launchMessage);
@@ -63,22 +95,11 @@ namespace GodotTools.Build
             startInfo.RedirectStandardOutput = true;
             startInfo.RedirectStandardError = true;
             startInfo.UseShellExecute = false;
-            startInfo.CreateNoWindow = true;
-
-            if (UsingMonoMsBuildOnWindows)
-            {
-                // These environment variables are required for Mono's MSBuild to find the compilers.
-                // We use the batch files in Mono's bin directory to make sure the compilers are executed with mono.
-                string monoWinBinDir = MonoWindowsBinDir;
-                startInfo.EnvironmentVariables.Add("CscToolExe", Path.Combine(monoWinBinDir, "csc.bat"));
-                startInfo.EnvironmentVariables.Add("VbcToolExe", Path.Combine(monoWinBinDir, "vbc.bat"));
-                startInfo.EnvironmentVariables.Add("FscToolExe", Path.Combine(monoWinBinDir, "fsharpc.bat"));
-            }
 
             // Needed when running from Developer Command Prompt for VS
             RemovePlatformVariable(startInfo.EnvironmentVariables);
 
-            var process = new Process {StartInfo = startInfo};
+            var process = new Process { StartInfo = startInfo };
 
             if (stdOutHandler != null)
                 process.OutputDataReceived += (s, e) => stdOutHandler.Invoke(e.Data);
@@ -93,9 +114,9 @@ namespace GodotTools.Build
             return process;
         }
 
-        public static int Build(BuildInfo buildInfo, Action<string> stdOutHandler, Action<string> stdErrHandler)
+        public static int Publish(BuildInfo buildInfo, Action<string> stdOutHandler, Action<string> stdErrHandler)
         {
-            using (var process = LaunchBuild(buildInfo, stdOutHandler, stdErrHandler))
+            using (var process = LaunchPublish(buildInfo, stdOutHandler, stdErrHandler))
             {
                 process.WaitForExit();
 
@@ -103,46 +124,105 @@ namespace GodotTools.Build
             }
         }
 
-        public static async Task<int> BuildAsync(BuildInfo buildInfo, Action<string> stdOutHandler, Action<string> stdErrHandler)
+        private static void BuildArguments(BuildInfo buildInfo, Collection<string> arguments)
         {
-            using (var process = LaunchBuild(buildInfo, stdOutHandler, stdErrHandler))
+            // `dotnet clean` / `dotnet build` commands
+            arguments.Add(buildInfo.OnlyClean ? "clean" : "build");
+
+            // Solution
+            arguments.Add(buildInfo.Solution);
+
+            // `dotnet clean` doesn't recognize these options
+            if (!buildInfo.OnlyClean)
             {
-                await process.WaitForExitAsync();
+                // Restore
+                // `dotnet build` restores by default, unless requested not to
+                if (!buildInfo.Restore)
+                    arguments.Add("--no-restore");
+
+                // Incremental or rebuild
+                if (buildInfo.Rebuild)
+                    arguments.Add("--no-incremental");
+            }
 
-                return process.ExitCode;
+            // Configuration
+            arguments.Add("-c");
+            arguments.Add(buildInfo.Configuration);
+
+            // Verbosity
+            arguments.Add("-v");
+            arguments.Add("normal");
+
+            // Logger
+            AddLoggerArgument(buildInfo, arguments);
+
+            // Custom properties
+            foreach (string customProperty in buildInfo.CustomProperties)
+            {
+                arguments.Add("-p:" + customProperty);
             }
         }
 
-        private static string BuildArguments(BuildTool buildTool, BuildInfo buildInfo)
+        private static void BuildPublishArguments(BuildInfo buildInfo, Collection<string> arguments)
         {
-            string arguments = string.Empty;
+            arguments.Add("publish"); // `dotnet publish` command
+
+            // Solution
+            arguments.Add(buildInfo.Solution);
+
+            // Restore
+            // `dotnet publish` restores by default, unless requested not to
+            if (!buildInfo.Restore)
+                arguments.Add("--no-restore");
+
+            // Incremental or rebuild
+            if (buildInfo.Rebuild)
+                arguments.Add("--no-incremental");
 
-            if (buildTool == BuildTool.DotnetCli)
-                arguments += "msbuild"; // `dotnet msbuild` command
+            // Configuration
+            arguments.Add("-c");
+            arguments.Add(buildInfo.Configuration);
 
-            arguments += $@" ""{buildInfo.Solution}""";
+            // Runtime Identifier
+            arguments.Add("-r");
+            arguments.Add(buildInfo.RuntimeIdentifier!);
 
-            if (buildInfo.Restore)
-                arguments += " /restore";
+            // Self-published
+            arguments.Add("--self-contained");
+            arguments.Add("true");
 
-            arguments += $@" /t:{string.Join(",", buildInfo.Targets)} " +
-                         $@"""/p:{"Configuration=" + buildInfo.Configuration}"" /v:normal " +
-                         $@"""{AddLoggerArgument(buildInfo)}""";
+            // Verbosity
+            arguments.Add("-v");
+            arguments.Add("normal");
 
+            // Logger
+            AddLoggerArgument(buildInfo, arguments);
+
+            // Trimming is not supported for dynamically loaded assemblies, as is our case with self hosting:
+            // https://github.com/dotnet/runtime/blob/main/docs/design/features/native-hosting.md#incompatible-with-trimming
+            arguments.Add("-p:PublishTrimmed=false");
+
+            // Custom properties
             foreach (string customProperty in buildInfo.CustomProperties)
             {
-                arguments += " /p:" + customProperty;
+                arguments.Add("-p:" + customProperty);
             }
 
-            return arguments;
+            // Publish output directory
+            if (buildInfo.PublishOutputDir != null)
+            {
+                arguments.Add("-o");
+                arguments.Add(buildInfo.PublishOutputDir);
+            }
         }
 
-        private static string AddLoggerArgument(BuildInfo buildInfo)
+        private static void AddLoggerArgument(BuildInfo buildInfo, Collection<string> arguments)
         {
-            string buildLoggerPath = Path.Combine(GodotSharpDirs.DataEditorToolsDir,
+            string buildLoggerPath = Path.Combine(Internals.GodotSharpDirs.DataEditorToolsDir,
                 "GodotTools.BuildLogger.dll");
 
-            return $"/l:{typeof(GodotBuildLogger).FullName},{buildLoggerPath};{buildInfo.LogsDirPath}";
+            arguments.Add(
+                $"-l:{typeof(GodotBuildLogger).FullName},{buildLoggerPath};{buildInfo.LogsDirPath}");
         }
 
         private static void RemovePlatformVariable(StringDictionary environmentVariables)
@@ -153,7 +233,7 @@ namespace GodotTools.Build
 
             foreach (string env in environmentVariables.Keys)
             {
-                if (env.ToUpper() == "PLATFORM")
+                if (env.ToUpperInvariant() == "PLATFORM")
                     platformEnvironmentVariables.Add(env);
             }
 
diff --git a/modules/mono/editor/GodotTools/GodotTools/Build/BuildTool.cs b/modules/mono/editor/GodotTools/GodotTools/Build/BuildTool.cs
deleted file mode 100644
index 837c8adddb..0000000000
--- a/modules/mono/editor/GodotTools/GodotTools/Build/BuildTool.cs
+++ /dev/null
@@ -1,10 +0,0 @@
-namespace GodotTools.Build
-{
-    public enum BuildTool : long
-    {
-        MsBuildMono,
-        MsBuildVs,
-        JetBrainsMsBuild,
-        DotnetCli
-    }
-}
diff --git a/modules/mono/editor/GodotTools/GodotTools/Build/DotNetFinder.cs b/modules/mono/editor/GodotTools/GodotTools/Build/DotNetFinder.cs
new file mode 100644
index 0000000000..7bce53308c
--- /dev/null
+++ b/modules/mono/editor/GodotTools/GodotTools/Build/DotNetFinder.cs
@@ -0,0 +1,99 @@
+using System;
+using System.Collections.Generic;
+using System.Diagnostics;
+using System.Diagnostics.CodeAnalysis;
+using System.IO;
+using JetBrains.Annotations;
+using OS = GodotTools.Utils.OS;
+
+namespace GodotTools.Build
+{
+    public static class DotNetFinder
+    {
+        [CanBeNull]
+        public static string FindDotNetExe()
+        {
+            // In the future, this method may do more than just search in PATH. We could look in
+            // known locations or use Godot's linked nethost to search from the hostfxr location.
+
+            return OS.PathWhich("dotnet");
+        }
+
+        public static bool TryFindDotNetSdk(
+            Version expectedVersion,
+            [NotNullWhen(true)] out Version version,
+            [NotNullWhen(true)] out string path
+        )
+        {
+            version = null;
+            path = null;
+
+            string dotNetExe = FindDotNetExe();
+
+            if (string.IsNullOrEmpty(dotNetExe))
+                return false;
+
+            using Process process = new Process();
+            process.StartInfo = new ProcessStartInfo(dotNetExe, "--list-sdks")
+            {
+                UseShellExecute = false,
+                RedirectStandardOutput = true
+            };
+
+            process.StartInfo.EnvironmentVariables["DOTNET_CLI_UI_LANGUAGE"] = "en-US";
+
+            var lines = new List<string>();
+
+            process.OutputDataReceived += (_, e) =>
+            {
+                if (!string.IsNullOrWhiteSpace(e.Data))
+                    lines.Add(e.Data);
+            };
+
+            try
+            {
+                process.Start();
+            }
+            catch
+            {
+                return false;
+            }
+
+            process.BeginOutputReadLine();
+            process.WaitForExit();
+
+            Version latestVersionMatch = null;
+            string matchPath = null;
+
+            foreach (var line in lines)
+            {
+                string[] sdkLineParts = line.Trim()
+                    .Split(' ', 2, StringSplitOptions.TrimEntries);
+
+                if (sdkLineParts.Length < 2)
+                    continue;
+
+                if (!Version.TryParse(sdkLineParts[0], out var lineVersion))
+                    continue;
+
+                // We're looking for the exact same major version
+                if (lineVersion.Major != expectedVersion.Major)
+                    continue;
+
+                if (latestVersionMatch != null && lineVersion < latestVersionMatch)
+                    continue;
+
+                latestVersionMatch = lineVersion;
+                matchPath = sdkLineParts[1].TrimStart('[').TrimEnd(']');
+            }
+
+            if (latestVersionMatch == null)
+                return false;
+
+            version = latestVersionMatch;
+            path = Path.Combine(matchPath!, version.ToString());
+
+            return true;
+        }
+    }
+}
diff --git a/modules/mono/editor/GodotTools/GodotTools/Build/MSBuildPanel.cs b/modules/mono/editor/GodotTools/GodotTools/Build/MSBuildPanel.cs
index 13b3ab7da2..6dae0a3a0e 100644
--- a/modules/mono/editor/GodotTools/GodotTools/Build/MSBuildPanel.cs
+++ b/modules/mono/editor/GodotTools/GodotTools/Build/MSBuildPanel.cs
@@ -6,7 +6,7 @@ using File = GodotTools.Utils.File;
 
 namespace GodotTools.Build
 {
-    public class MSBuildPanel : VBoxContainer
+    public partial class MSBuildPanel : VBoxContainer
     {
         public BuildOutputView BuildOutputView { get; private set; }
 
@@ -70,7 +70,7 @@ namespace GodotTools.Build
                 GD.PushError("Failed to setup Godot NuGet Offline Packages: " + e.Message);
             }
 
-            if (!BuildManager.BuildProjectBlocking("Debug", targets: new[] { "Rebuild" }))
+            if (!BuildManager.BuildProjectBlocking("Debug", rebuild: true))
                 return; // Build failed
 
             // Notify running game for hot-reload
@@ -88,7 +88,7 @@ namespace GodotTools.Build
             if (!File.Exists(GodotSharpDirs.ProjectSlnPath))
                 return; // No solution to build
 
-            BuildManager.BuildProjectBlocking("Debug", targets: new[] { "Clean" });
+            _ = BuildManager.CleanProjectBlocking("Debug");
         }
 
         private void ViewLogToggled(bool pressed) => BuildOutputView.LogVisible = pressed;
diff --git a/modules/mono/editor/GodotTools/GodotTools/Build/MsBuildFinder.cs b/modules/mono/editor/GodotTools/GodotTools/Build/MsBuildFinder.cs
deleted file mode 100644
index a859c6f717..0000000000
--- a/modules/mono/editor/GodotTools/GodotTools/Build/MsBuildFinder.cs
+++ /dev/null
@@ -1,233 +0,0 @@
-using System;
-using System.Collections.Generic;
-using System.IO;
-using Godot;
-using GodotTools.Ides.Rider;
-using GodotTools.Internals;
-using Directory = System.IO.Directory;
-using Environment = System.Environment;
-using File = System.IO.File;
-using Path = System.IO.Path;
-using OS = GodotTools.Utils.OS;
-
-namespace GodotTools.Build
-{
-    public static class MsBuildFinder
-    {
-        private static string _msbuildToolsPath = string.Empty;
-        private static string _msbuildUnixPath = string.Empty;
-
-        public static (string, BuildTool) FindMsBuild()
-        {
-            var editorSettings = GodotSharpEditor.Instance.GetEditorInterface().GetEditorSettings();
-            var buildTool = (BuildTool)editorSettings.GetSetting("mono/builds/build_tool");
-
-            if (OS.IsWindows)
-            {
-                switch (buildTool)
-                {
-                    case BuildTool.DotnetCli:
-                    {
-                        string dotnetCliPath = OS.PathWhich("dotnet");
-                        if (!string.IsNullOrEmpty(dotnetCliPath))
-                            return (dotnetCliPath, BuildTool.DotnetCli);
-                        GD.PushError($"Cannot find executable for '{BuildManager.PropNameDotnetCli}'. Fallback to MSBuild from Visual Studio.");
-                        goto case BuildTool.MsBuildVs;
-                    }
-                    case BuildTool.MsBuildVs:
-                    {
-                        if (string.IsNullOrEmpty(_msbuildToolsPath) || !File.Exists(_msbuildToolsPath))
-                        {
-                            // Try to search it again if it wasn't found last time or if it was removed from its location
-                            _msbuildToolsPath = FindMsBuildToolsPathOnWindows();
-
-                            if (string.IsNullOrEmpty(_msbuildToolsPath))
-                                throw new FileNotFoundException($"Cannot find executable for '{BuildManager.PropNameMSBuildVs}'.");
-                        }
-
-                        if (!_msbuildToolsPath.EndsWith("\\"))
-                            _msbuildToolsPath += "\\";
-
-                        return (Path.Combine(_msbuildToolsPath, "MSBuild.exe"), BuildTool.MsBuildVs);
-                    }
-                    case BuildTool.MsBuildMono:
-                    {
-                        string msbuildPath = Path.Combine(Internal.MonoWindowsInstallRoot, "bin", "msbuild.bat");
-
-                        if (!File.Exists(msbuildPath))
-                            throw new FileNotFoundException($"Cannot find executable for '{BuildManager.PropNameMSBuildMono}'. Tried with path: {msbuildPath}");
-
-                        return (msbuildPath, BuildTool.MsBuildMono);
-                    }
-                    case BuildTool.JetBrainsMsBuild:
-                    {
-                        string editorPath = (string)editorSettings.GetSetting(RiderPathManager.EditorPathSettingName);
-
-                        if (!File.Exists(editorPath))
-                            throw new FileNotFoundException($"Cannot find Rider executable. Tried with path: {editorPath}");
-
-                        var riderDir = new FileInfo(editorPath).Directory?.Parent;
-
-                        string msbuildPath = Path.Combine(riderDir.FullName, @"tools\MSBuild\Current\Bin\MSBuild.exe");
-
-                        if (!File.Exists(msbuildPath))
-                            throw new FileNotFoundException($"Cannot find executable for '{BuildManager.PropNameMSBuildJetBrains}'. Tried with path: {msbuildPath}");
-
-                        return (msbuildPath, BuildTool.JetBrainsMsBuild);
-                    }
-                    default:
-                        throw new IndexOutOfRangeException("Invalid build tool in editor settings");
-                }
-            }
-
-            if (OS.IsUnixLike)
-            {
-                switch (buildTool)
-                {
-                    case BuildTool.DotnetCli:
-                    {
-                        string dotnetCliPath = FindBuildEngineOnUnix("dotnet");
-                        if (!string.IsNullOrEmpty(dotnetCliPath))
-                            return (dotnetCliPath, BuildTool.DotnetCli);
-                        GD.PushError($"Cannot find executable for '{BuildManager.PropNameDotnetCli}'. Fallback to MSBuild from Mono.");
-                        goto case BuildTool.MsBuildMono;
-                    }
-                    case BuildTool.MsBuildMono:
-                    {
-                        if (string.IsNullOrEmpty(_msbuildUnixPath) || !File.Exists(_msbuildUnixPath))
-                        {
-                            // Try to search it again if it wasn't found last time or if it was removed from its location
-                            _msbuildUnixPath = FindBuildEngineOnUnix("msbuild");
-                        }
-
-                        if (string.IsNullOrEmpty(_msbuildUnixPath))
-                            throw new FileNotFoundException($"Cannot find binary for '{BuildManager.PropNameMSBuildMono}'");
-
-                        return (_msbuildUnixPath, BuildTool.MsBuildMono);
-                    }
-                    default:
-                        throw new IndexOutOfRangeException("Invalid build tool in editor settings");
-                }
-            }
-
-            throw new PlatformNotSupportedException();
-        }
-
-        private static IEnumerable<string> MsBuildHintDirs
-        {
-            get
-            {
-                var result = new List<string>();
-
-                if (OS.IsMacOS)
-                {
-                    result.Add("/Library/Frameworks/Mono.framework/Versions/Current/bin/");
-                    result.Add("/opt/local/bin/");
-                    result.Add("/usr/local/var/homebrew/linked/mono/bin/");
-                    result.Add("/usr/local/bin/");
-                    result.Add("/usr/local/bin/dotnet/");
-                    result.Add("/usr/local/share/dotnet/");
-                }
-
-                result.Add("/opt/novell/mono/bin/");
-
-                return result;
-            }
-        }
-
-        private static string FindBuildEngineOnUnix(string name)
-        {
-            string ret = OS.PathWhich(name);
-
-            if (!string.IsNullOrEmpty(ret))
-                return ret;
-
-            string retFallback = OS.PathWhich($"{name}.exe");
-
-            if (!string.IsNullOrEmpty(retFallback))
-                return retFallback;
-
-            foreach (string hintDir in MsBuildHintDirs)
-            {
-                string hintPath = Path.Combine(hintDir, name);
-
-                if (File.Exists(hintPath))
-                    return hintPath;
-            }
-
-            return string.Empty;
-        }
-
-        private static string FindMsBuildToolsPathOnWindows()
-        {
-            if (!OS.IsWindows)
-                throw new PlatformNotSupportedException();
-
-            // Try to find 15.0 with vswhere
-
-            string[] envNames = Internal.GodotIs32Bits() ?
-                envNames = new[] { "ProgramFiles", "ProgramW6432" } :
-                envNames = new[] { "ProgramFiles(x86)", "ProgramFiles" };
-
-            string vsWherePath = null;
-            foreach (var envName in envNames)
-            {
-                vsWherePath = Environment.GetEnvironmentVariable(envName);
-                if (!string.IsNullOrEmpty(vsWherePath))
-                {
-                    vsWherePath += "\\Microsoft Visual Studio\\Installer\\vswhere.exe";
-                    if (File.Exists(vsWherePath))
-                        break;
-                }
-
-                vsWherePath = null;
-            }
-
-            var vsWhereArgs = new[] {"-latest", "-products", "*", "-requires", "Microsoft.Component.MSBuild"};
-
-            var outputArray = new Godot.Collections.Array<string>();
-            int exitCode = Godot.OS.Execute(vsWherePath, vsWhereArgs,
-                output: (Godot.Collections.Array)outputArray);
-
-            if (exitCode != 0)
-                return string.Empty;
-
-            if (outputArray.Count == 0)
-                return string.Empty;
-
-            var lines = outputArray[0].Split('\n');
-
-            foreach (string line in lines)
-            {
-                int sepIdx = line.IndexOf(':');
-
-                if (sepIdx <= 0)
-                    continue;
-
-                string key = line.Substring(0, sepIdx); // No need to trim
-
-                if (key != "installationPath")
-                    continue;
-
-                string value = line.Substring(sepIdx + 1).StripEdges();
-
-                if (string.IsNullOrEmpty(value))
-                    throw new FormatException("installationPath value is empty");
-
-                if (!value.EndsWith("\\"))
-                    value += "\\";
-
-                // Since VS2019, the directory is simply named "Current"
-                string msbuildDir = Path.Combine(value, "MSBuild\\Current\\Bin");
-
-                if (Directory.Exists(msbuildDir))
-                    return msbuildDir;
-
-                // Directory name "15.0" is used in VS 2017
-                return Path.Combine(value, "MSBuild\\15.0\\Bin");
-            }
-
-            return string.Empty;
-        }
-    }
-}
diff --git a/modules/mono/editor/GodotTools/GodotTools/Build/NuGetUtils.cs b/modules/mono/editor/GodotTools/GodotTools/Build/NuGetUtils.cs
index 63b97e981e..fdb86c8f34 100644
--- a/modules/mono/editor/GodotTools/GodotTools/Build/NuGetUtils.cs
+++ b/modules/mono/editor/GodotTools/GodotTools/Build/NuGetUtils.cs
@@ -1,4 +1,5 @@
 using System;
+using System.Globalization;
 using System.IO;
 using System.IO.Compression;
 using System.Linq;
@@ -39,7 +40,8 @@ namespace GodotTools.Build
                 // Since this can be considered pretty much a new NuGet.Config, add the default nuget.org source as well
                 XmlElement nugetOrgSourceEntry = xmlDoc.CreateElement("add");
                 nugetOrgSourceEntry.Attributes.Append(xmlDoc.CreateAttribute("key")).Value = "nuget.org";
-                nugetOrgSourceEntry.Attributes.Append(xmlDoc.CreateAttribute("value")).Value = "https://api.nuget.org/v3/index.json";
+                nugetOrgSourceEntry.Attributes.Append(xmlDoc.CreateAttribute("value")).Value =
+                    "https://api.nuget.org/v3/index.json";
                 nugetOrgSourceEntry.Attributes.Append(xmlDoc.CreateAttribute("protocolVersion")).Value = "3";
                 rootNode.AppendChild(xmlDoc.CreateElement("packageSources")).AppendChild(nugetOrgSourceEntry);
             }
@@ -181,8 +183,8 @@ namespace GodotTools.Build
             // - The sha512 of the nupkg is base64 encoded.
             // - We can get the nuspec from the nupkg which is a Zip file.
 
-            string packageIdLower = packageId.ToLower();
-            string packageVersionLower = packageVersion.ToLower();
+            string packageIdLower = packageId.ToLowerInvariant();
+            string packageVersionLower = packageVersion.ToLowerInvariant();
 
             string destDir = Path.Combine(fallbackFolder, packageIdLower, packageVersionLower);
             string nupkgDestPath = Path.Combine(destDir, $"{packageIdLower}.{packageVersionLower}.nupkg");
@@ -227,9 +229,11 @@ namespace GodotTools.Build
                 var nuspecEntry = archive.GetEntry(packageId + ".nuspec");
 
                 if (nuspecEntry == null)
-                    throw new InvalidOperationException($"Failed to extract package {packageId}.{packageVersion}. Could not find the nuspec file.");
+                    throw new InvalidOperationException(
+                        $"Failed to extract package {packageId}.{packageVersion}. Could not find the nuspec file.");
 
-                nuspecEntry.ExtractToFile(Path.Combine(destDir, nuspecEntry.Name.ToLower().SimplifyGodotPath()));
+                nuspecEntry.ExtractToFile(Path.Combine(destDir, nuspecEntry.Name
+                    .ToLowerInvariant().SimplifyGodotPath()));
 
                 // Extract the other package files
 
diff --git a/modules/mono/editor/GodotTools/GodotTools/Export/ExportPlugin.cs b/modules/mono/editor/GodotTools/GodotTools/Export/ExportPlugin.cs
index d8ebe762e1..edf3eeb7fa 100644
--- a/modules/mono/editor/GodotTools/GodotTools/Export/ExportPlugin.cs
+++ b/modules/mono/editor/GodotTools/GodotTools/Export/ExportPlugin.cs
@@ -1,12 +1,9 @@
 using Godot;
-using Godot.NativeInterop;
 using System;
 using System.Collections.Generic;
 using System.Diagnostics;
-using System.Diagnostics.CodeAnalysis;
 using System.IO;
 using System.Linq;
-using System.Runtime.CompilerServices;
 using GodotTools.Build;
 using GodotTools.Core;
 using GodotTools.Internals;
@@ -18,61 +15,13 @@ using Path = System.IO.Path;
 
 namespace GodotTools.Export
 {
-    public class ExportPlugin : EditorExportPlugin
+    public partial class ExportPlugin : EditorExportPlugin
     {
-        [Flags]
-        private enum I18NCodesets : long
-        {
-            None = 0,
-            CJK = 1,
-            MidEast = 2,
-            Other = 4,
-            Rare = 8,
-            West = 16,
-            All = CJK | MidEast | Other | Rare | West
-        }
-
-        private string _maybeLastExportError;
-
-        private void AddI18NAssemblies(Godot.Collections.Dictionary<string, string> assemblies, string bclDir)
-        {
-            var codesets = (I18NCodesets)ProjectSettings.GetSetting("mono/export/i18n_codesets");
-
-            if (codesets == I18NCodesets.None)
-                return;
-
-            void AddI18NAssembly(string name) => assemblies.Add(name, Path.Combine(bclDir, $"{name}.dll"));
-
-            AddI18NAssembly("I18N");
-
-            if ((codesets & I18NCodesets.CJK) != 0)
-                AddI18NAssembly("I18N.CJK");
-            if ((codesets & I18NCodesets.MidEast) != 0)
-                AddI18NAssembly("I18N.MidEast");
-            if ((codesets & I18NCodesets.Other) != 0)
-                AddI18NAssembly("I18N.Other");
-            if ((codesets & I18NCodesets.Rare) != 0)
-                AddI18NAssembly("I18N.Rare");
-            if ((codesets & I18NCodesets.West) != 0)
-                AddI18NAssembly("I18N.West");
-        }
-
         public void RegisterExportSettings()
         {
             // TODO: These would be better as export preset options, but that doesn't seem to be supported yet
 
             GlobalDef("mono/export/include_scripts_content", false);
-            GlobalDef("mono/export/export_assemblies_inside_pck", true);
-
-            GlobalDef("mono/export/i18n_codesets", I18NCodesets.All);
-
-            ProjectSettings.AddPropertyInfo(new Godot.Collections.Dictionary
-            {
-                ["type"] = Variant.Type.Int,
-                ["name"] = "mono/export/i18n_codesets",
-                ["hint"] = PropertyHint.Flags,
-                ["hint_string"] = "CJK,MidEast,Other,Rare,West"
-            });
 
             GlobalDef("mono/export/aot/enabled", false);
             GlobalDef("mono/export/aot/full_aot", false);
@@ -86,11 +35,7 @@ namespace GodotTools.Export
             GlobalDef("mono/export/aot/android_toolchain_path", "");
         }
 
-        private void AddFile(string srcPath, string dstPath, bool remap = false)
-        {
-            // Add file to the PCK
-            AddFile(dstPath.Replace("\\", "/"), File.ReadAllBytes(srcPath), remap);
-        }
+        private string _maybeLastExportError;
 
         // With this method we can override how a file is exported in the PCK
         public override void _ExportFile(string path, string type, string[] features)
@@ -155,178 +100,84 @@ namespace GodotTools.Export
             if (!DeterminePlatformFromFeatures(features, out string platform))
                 throw new NotSupportedException("Target platform not supported");
 
+            if (!new[] { OS.Platforms.Windows, OS.Platforms.LinuxBSD, OS.Platforms.MacOS, OS.Platforms.Server }
+                    .Contains(platform))
+            {
+                throw new NotImplementedException("Target platform not yet implemented");
+            }
+
             string outputDir = new FileInfo(path).Directory?.FullName ??
-                               throw new FileNotFoundException("Base directory not found");
+                               throw new FileNotFoundException("Output base directory not found");
 
             string buildConfig = isDebug ? "ExportDebug" : "ExportRelease";
 
-            if (!BuildManager.BuildProjectBlocking(buildConfig, platform: platform))
-                throw new Exception("Failed to build project");
+            // TODO: This works for now, as we only implemented support for x86 family desktop so far, but it needs to be fixed
+            string arch = features.Contains("64") ? "x86_64" : "x86";
 
-            // Add dependency assemblies
+            string ridOS = DetermineRuntimeIdentifierOS(platform);
+            string ridArch = DetermineRuntimeIdentifierArch(arch);
+            string runtimeIdentifier = $"{ridOS}-{ridArch}";
 
-            var assemblies = new Godot.Collections.Dictionary<string, string>();
+            // Create temporary publish output directory
 
-            string projectDllName = GodotSharpEditor.ProjectAssemblyName;
-            string projectDllSrcDir = Path.Combine(GodotSharpDirs.ResTempAssembliesBaseDir, buildConfig);
-            string projectDllSrcPath = Path.Combine(projectDllSrcDir, $"{projectDllName}.dll");
+            string publishOutputTempDir = Path.Combine(Path.GetTempPath(), "godot-publish-dotnet",
+                $"{Process.GetCurrentProcess().Id}-{buildConfig}-{runtimeIdentifier}");
 
-            assemblies[projectDllName] = projectDllSrcPath;
+            if (!Directory.Exists(publishOutputTempDir))
+                Directory.CreateDirectory(publishOutputTempDir);
 
-            string bclDir = DeterminePlatformBclDir(platform);
+            // Execute dotnet publish
 
-            if (platform == OS.Platforms.Android)
+            if (!BuildManager.PublishProjectBlocking(buildConfig, platform,
+                    runtimeIdentifier, publishOutputTempDir))
             {
-                string godotAndroidExtProfileDir = GetBclProfileDir("godot_android_ext");
-                string monoAndroidAssemblyPath = Path.Combine(godotAndroidExtProfileDir, "Mono.Android.dll");
-
-                if (!File.Exists(monoAndroidAssemblyPath))
-                    throw new FileNotFoundException("Assembly not found: 'Mono.Android'", monoAndroidAssemblyPath);
-
-                assemblies["Mono.Android"] = monoAndroidAssemblyPath;
+                throw new Exception("Failed to build project");
             }
-            else if (platform == OS.Platforms.HTML5)
+
+            if (!File.Exists(Path.Combine(publishOutputTempDir, $"{GodotSharpEditor.ProjectAssemblyName}.dll")))
             {
-                // Ideally these would be added automatically since they're referenced by the wasm BCL assemblies.
-                // However, at least in the case of 'WebAssembly.Net.Http' for some reason the BCL assemblies
-                // reference a different version even though the assembly is the same, for some weird reason.
-
-                var wasmFrameworkAssemblies = new[] { "WebAssembly.Bindings", "WebAssembly.Net.WebSockets" };
-
-                foreach (string thisWasmFrameworkAssemblyName in wasmFrameworkAssemblies)
-                {
-                    string thisWasmFrameworkAssemblyPath = Path.Combine(bclDir, thisWasmFrameworkAssemblyName + ".dll");
-                    if (!File.Exists(thisWasmFrameworkAssemblyPath))
-                        throw new FileNotFoundException($"Assembly not found: '{thisWasmFrameworkAssemblyName}'",
-                            thisWasmFrameworkAssemblyPath);
-                    assemblies[thisWasmFrameworkAssemblyName] = thisWasmFrameworkAssemblyPath;
-                }
-
-                // Assemblies that can have a different name in a newer version. Newer version must come first and it has priority.
-                (string newName, string oldName)[] wasmFrameworkAssembliesOneOf = new[]
-                {
-                    ("System.Net.Http.WebAssemblyHttpHandler", "WebAssembly.Net.Http")
-                };
-
-                foreach (var thisWasmFrameworkAssemblyName in wasmFrameworkAssembliesOneOf)
-                {
-                    string thisWasmFrameworkAssemblyPath =
-                        Path.Combine(bclDir, thisWasmFrameworkAssemblyName.newName + ".dll");
-                    if (File.Exists(thisWasmFrameworkAssemblyPath))
-                    {
-                        assemblies[thisWasmFrameworkAssemblyName.newName] = thisWasmFrameworkAssemblyPath;
-                    }
-                    else
-                    {
-                        thisWasmFrameworkAssemblyPath =
-                            Path.Combine(bclDir, thisWasmFrameworkAssemblyName.oldName + ".dll");
-                        if (!File.Exists(thisWasmFrameworkAssemblyPath))
-                        {
-                            throw new FileNotFoundException(
-                                "Expected one of the following assemblies but none were found: " +
-                                $"'{thisWasmFrameworkAssemblyName.newName}' / '{thisWasmFrameworkAssemblyName.oldName}'",
-                                thisWasmFrameworkAssemblyPath);
-                        }
-
-                        assemblies[thisWasmFrameworkAssemblyName.oldName] = thisWasmFrameworkAssemblyPath;
-                    }
-                }
+                throw new NotSupportedException(
+                    "Publish succeeded but project assembly not found in the output directory");
             }
 
-            // var initialAssemblies = assemblies.Duplicate();
-            // godot_dictionary initialAssembliesAux = ((Godot.Collections.Dictionary)initialAssemblies).NativeValue;
-            // using godot_string buildConfigAux = Marshaling.ConvertStringToNative(buildConfig);
-            // using godot_string bclDirAux = Marshaling.ConvertStringToNative(bclDir);
-            // godot_dictionary assembliesAux = ((Godot.Collections.Dictionary)assemblies).NativeValue;
-            // TODO
-            throw new NotImplementedException();
-            //internal_GetExportedAssemblyDependencies(initialAssembliesAux, buildConfigAux, bclDirAux, ref assembliesAux);
-
-            AddI18NAssemblies(assemblies, bclDir);
-
-            string outputDataDir = null;
+            // Copy all files from the dotnet publish output directory to
+            // a data directory next to the Godot output executable.
 
-            if (PlatformHasTemplateDir(platform))
-                outputDataDir = ExportDataDirectory(features, platform, isDebug, outputDir);
+            string outputDataDir = Path.Combine(outputDir, DetermineDataDirNameForProject());
 
-            string apiConfig = isDebug ? "Debug" : "Release";
-            // TODO
-            throw new NotImplementedException();
-            string resAssembliesDir = null; // Path.Combine(GodotSharpDirs.ResAssembliesBaseDir, apiConfig);
+            if (Directory.Exists(outputDataDir))
+                Directory.Delete(outputDataDir, recursive: true); // Clean first
 
-            bool assembliesInsidePck = (bool)ProjectSettings.GetSetting("mono/export/export_assemblies_inside_pck") ||
-                                       outputDataDir == null;
+            Directory.CreateDirectory(outputDataDir);
 
-            if (!assembliesInsidePck)
+            foreach (string dir in Directory.GetDirectories(publishOutputTempDir, "*", SearchOption.AllDirectories))
             {
-                string outputDataGameAssembliesDir = Path.Combine(outputDataDir, "Assemblies");
-                if (!Directory.Exists(outputDataGameAssembliesDir))
-                    Directory.CreateDirectory(outputDataGameAssembliesDir);
+                Directory.CreateDirectory(Path.Combine(outputDataDir, dir.Substring(publishOutputTempDir.Length + 1)));
             }
 
-            foreach (var assembly in assemblies)
+            foreach (string file in Directory.GetFiles(publishOutputTempDir, "*", SearchOption.AllDirectories))
             {
-                void AddToAssembliesDir(string fileSrcPath)
-                {
-                    if (assembliesInsidePck)
-                    {
-                        string fileDstPath = Path.Combine(resAssembliesDir, fileSrcPath.GetFile());
-                        AddFile(fileSrcPath, fileDstPath);
-                    }
-                    else
-                    {
-                        Debug.Assert(outputDataDir != null);
-                        string fileDstPath = Path.Combine(outputDataDir, "Assemblies", fileSrcPath.GetFile());
-                        File.Copy(fileSrcPath, fileDstPath);
-                    }
-                }
-
-                string assemblySrcPath = assembly.Value;
-
-                string assemblyPathWithoutExtension = Path.ChangeExtension(assemblySrcPath, null);
-                string pdbSrcPath = assemblyPathWithoutExtension + ".pdb";
-
-                AddToAssembliesDir(assemblySrcPath);
-
-                if (File.Exists(pdbSrcPath))
-                    AddToAssembliesDir(pdbSrcPath);
+                File.Copy(file, Path.Combine(outputDataDir, file.Substring(publishOutputTempDir.Length + 1)));
             }
+        }
 
-            // AOT compilation
-            bool aotEnabled = platform == OS.Platforms.iOS ||
-                              (bool)ProjectSettings.GetSetting("mono/export/aot/enabled");
+        private string DetermineRuntimeIdentifierOS(string platform)
+            => OS.DotNetOSPlatformMap[platform];
 
-            if (aotEnabled)
+        private string DetermineRuntimeIdentifierArch(string arch)
+        {
+            return arch switch
             {
-                string aotToolchainPath = null;
-
-                if (platform == OS.Platforms.Android)
-                    aotToolchainPath = (string)ProjectSettings.GetSetting("mono/export/aot/android_toolchain_path");
-
-                if (aotToolchainPath == string.Empty)
-                    aotToolchainPath = null; // Don't risk it being used as current working dir
-
-                // TODO: LLVM settings are hard-coded and disabled for now
-                var aotOpts = new AotOptions
-                {
-                    EnableLLVM = false,
-                    LLVMOnly = false,
-                    LLVMPath = "",
-                    LLVMOutputPath = "",
-                    FullAot = platform == OS.Platforms.iOS ||
-                              (bool)(ProjectSettings.GetSetting("mono/export/aot/full_aot") ?? false),
-                    UseInterpreter = (bool)ProjectSettings.GetSetting("mono/export/aot/use_interpreter"),
-                    ExtraAotOptions = (string[])ProjectSettings.GetSetting("mono/export/aot/extra_aot_options") ??
-                                      Array.Empty<string>(),
-                    ExtraOptimizerOptions =
-                        (string[])ProjectSettings.GetSetting("mono/export/aot/extra_optimizer_options") ??
-                        Array.Empty<string>(),
-                    ToolchainPath = aotToolchainPath
-                };
-
-                AotBuilder.CompileAssemblies(this, aotOpts, features, platform, isDebug, bclDir, outputDir,
-                    outputDataDir, assemblies);
-            }
+                "x86" => "x86",
+                "x86_32" => "x86",
+                "x64" => "x64",
+                "x86_64" => "x64",
+                "armeabi-v7a" => "arm",
+                "arm64-v8a" => "arm64",
+                "armv7" => "arm",
+                "arm64" => "arm64",
+                _ => throw new ArgumentOutOfRangeException(nameof(arch), arch, "Unexpected architecture")
+            };
         }
 
         public override void _ExportEnd()
@@ -350,70 +201,11 @@ namespace GodotTools.Export
             }
         }
 
-        [return: NotNull]
-        private static string ExportDataDirectory(string[] features, string platform, bool isDebug, string outputDir)
-        {
-            string target = isDebug ? "release_debug" : "release";
-
-            // NOTE: Bits is ok for now as all platforms with a data directory only have one or two architectures.
-            // However, this may change in the future if we add arm linux or windows desktop templates.
-            string bits = features.Contains("64") ? "64" : "32";
-
-            string TemplateDirName() => $"data.mono.{platform}.{bits}.{target}";
-
-            string templateDirPath = Path.Combine(Internal.FullExportTemplatesDir, TemplateDirName());
-            bool validTemplatePathFound = true;
-
-            if (!Directory.Exists(templateDirPath))
-            {
-                validTemplatePathFound = false;
-
-                if (isDebug)
-                {
-                    target = "debug"; // Support both 'release_debug' and 'debug' for the template data directory name
-                    templateDirPath = Path.Combine(Internal.FullExportTemplatesDir, TemplateDirName());
-                    validTemplatePathFound = true;
-
-                    if (!Directory.Exists(templateDirPath))
-                        validTemplatePathFound = false;
-                }
-            }
-
-            if (!validTemplatePathFound)
-                throw new FileNotFoundException("Data template directory not found", templateDirPath);
-
-            string outputDataDir = Path.Combine(outputDir, DetermineDataDirNameForProject());
-
-            if (Directory.Exists(outputDataDir))
-                Directory.Delete(outputDataDir, recursive: true); // Clean first
-
-            Directory.CreateDirectory(outputDataDir);
-
-            foreach (string dir in Directory.GetDirectories(templateDirPath, "*", SearchOption.AllDirectories))
-            {
-                Directory.CreateDirectory(Path.Combine(outputDataDir, dir.Substring(templateDirPath.Length + 1)));
-            }
-
-            foreach (string file in Directory.GetFiles(templateDirPath, "*", SearchOption.AllDirectories))
-            {
-                File.Copy(file, Path.Combine(outputDataDir, file.Substring(templateDirPath.Length + 1)));
-            }
-
-            return outputDataDir;
-        }
-
-        private static bool PlatformHasTemplateDir(string platform)
-        {
-            // macOS export templates are contained in a zip, so we place our custom template inside it and let Godot do the rest.
-            return !new[] { OS.Platforms.MacOS, OS.Platforms.Android, OS.Platforms.iOS, OS.Platforms.HTML5 }
-                .Contains(platform);
-        }
-
         private static bool DeterminePlatformFromFeatures(IEnumerable<string> features, out string platform)
         {
             foreach (var feature in features)
             {
-                if (OS.PlatformNameMap.TryGetValue(feature, out platform))
+                if (OS.PlatformFeatureMap.TryGetValue(feature, out platform))
                     return true;
             }
 
@@ -421,78 +213,6 @@ namespace GodotTools.Export
             return false;
         }
 
-        private static string GetBclProfileDir(string profile)
-        {
-            string templatesDir = Internal.FullExportTemplatesDir;
-            return Path.Combine(templatesDir, "bcl", profile);
-        }
-
-        private static string DeterminePlatformBclDir(string platform)
-        {
-            string templatesDir = Internal.FullExportTemplatesDir;
-            string platformBclDir = Path.Combine(templatesDir, "bcl", platform);
-
-            if (!File.Exists(Path.Combine(platformBclDir, "mscorlib.dll")))
-            {
-                string profile = DeterminePlatformBclProfile(platform);
-                platformBclDir = Path.Combine(templatesDir, "bcl", profile);
-
-                if (!File.Exists(Path.Combine(platformBclDir, "mscorlib.dll")))
-                {
-                    if (PlatformRequiresCustomBcl(platform))
-                        throw new FileNotFoundException($"Missing BCL (Base Class Library) for platform: {platform}");
-
-                    platformBclDir = typeof(object).Assembly.Location.GetBaseDir(); // Use the one we're running on
-                }
-            }
-
-            return platformBclDir;
-        }
-
-        /// <summary>
-        /// Determines whether the BCL bundled with the Godot editor can be used for the target platform,
-        /// or if it requires a custom BCL that must be distributed with the export templates.
-        /// </summary>
-        private static bool PlatformRequiresCustomBcl(string platform)
-        {
-            if (new[] { OS.Platforms.Android, OS.Platforms.iOS, OS.Platforms.HTML5 }.Contains(platform))
-                return true;
-
-            // The 'net_4_x' BCL is not compatible between Windows and the other platforms.
-            // We use the names 'net_4_x_win' and 'net_4_x' to differentiate between the two.
-
-            bool isWinOrUwp = new[]
-            {
-                OS.Platforms.Windows,
-                OS.Platforms.UWP
-            }.Contains(platform);
-
-            return OS.IsWindows ? !isWinOrUwp : isWinOrUwp;
-        }
-
-        private static string DeterminePlatformBclProfile(string platform)
-        {
-            switch (platform)
-            {
-                case OS.Platforms.Windows:
-                case OS.Platforms.UWP:
-                    return "net_4_x_win";
-                case OS.Platforms.MacOS:
-                case OS.Platforms.LinuxBSD:
-                case OS.Platforms.Server:
-                case OS.Platforms.Haiku:
-                    return "net_4_x";
-                case OS.Platforms.Android:
-                    return "monodroid";
-                case OS.Platforms.iOS:
-                    return "monotouch";
-                case OS.Platforms.HTML5:
-                    return "wasm";
-                default:
-                    throw new NotSupportedException($"Platform not supported: {platform}");
-            }
-        }
-
         private static string DetermineDataDirNameForProject()
         {
             string appName = (string)ProjectSettings.GetSetting("application/config/name");
diff --git a/modules/mono/editor/GodotTools/GodotTools/GodotSharpEditor.cs b/modules/mono/editor/GodotTools/GodotTools/GodotSharpEditor.cs
index 2d85513766..4e27f4ed14 100644
--- a/modules/mono/editor/GodotTools/GodotTools/GodotSharpEditor.cs
+++ b/modules/mono/editor/GodotTools/GodotTools/GodotSharpEditor.cs
@@ -13,13 +13,14 @@ using GodotTools.Internals;
 using GodotTools.ProjectEditor;
 using JetBrains.Annotations;
 using static GodotTools.Internals.Globals;
+using Environment = System.Environment;
 using File = GodotTools.Utils.File;
 using OS = GodotTools.Utils.OS;
 using Path = System.IO.Path;
 
 namespace GodotTools
 {
-    public class GodotSharpEditor : EditorPlugin, ISerializationListener
+    public partial class GodotSharpEditor : EditorPlugin, ISerializationListener
     {
         private EditorSettings _editorSettings;
 
@@ -151,13 +152,6 @@ namespace GodotTools
             Instance.MSBuildPanel.BuildSolution();
         }
 
-        public override void _Ready()
-        {
-            base._Ready();
-
-            MSBuildPanel.BuildOutputView.BuildStateChanged += BuildStateChanged;
-        }
-
         private enum MenuOptions
         {
             CreateSln,
@@ -382,12 +376,37 @@ namespace GodotTools
         {
             base._EnablePlugin();
 
-            ProjectUtils.MSBuildLocatorRegisterDefaults();
-
             if (Instance != null)
                 throw new InvalidOperationException();
             Instance = this;
 
+            var dotNetSdkSearchVersion = Environment.Version;
+
+            // First we try to find the .NET Sdk ourselves to make sure we get the
+            // correct version first (`RegisterDefaults` always picks the latest).
+            if (DotNetFinder.TryFindDotNetSdk(dotNetSdkSearchVersion, out var sdkVersion, out string sdkPath))
+            {
+                if (Godot.OS.IsStdoutVerbose())
+                    Console.WriteLine($"Found .NET Sdk version '{sdkVersion}': {sdkPath}");
+
+                ProjectUtils.MSBuildLocatorRegisterMSBuildPath(sdkPath);
+            }
+            else
+            {
+                try
+                {
+                    ProjectUtils.MSBuildLocatorRegisterDefaults(out sdkVersion, out sdkPath);
+                    if (Godot.OS.IsStdoutVerbose())
+                        Console.WriteLine($"Found .NET Sdk version '{sdkVersion}': {sdkPath}");
+                }
+                catch (InvalidOperationException e)
+                {
+                    if (Godot.OS.IsStdoutVerbose())
+                        GD.PrintErr(e.ToString());
+                    GD.PushError($".NET Sdk not found. The required version is '{dotNetSdkSearchVersion}'.");
+                }
+            }
+
             var editorInterface = GetEditorInterface();
             var editorBaseControl = editorInterface.GetBaseControl();
 
@@ -397,6 +416,8 @@ namespace GodotTools
             editorBaseControl.AddChild(_errorDialog);
 
             MSBuildPanel = new MSBuildPanel();
+            MSBuildPanel.Ready += () =>
+                MSBuildPanel.BuildOutputView.BuildStateChanged += BuildStateChanged;
             _bottomPanelBtn = AddControlToBottomPanel(MSBuildPanel, "MSBuild".TTR());
 
             AddChild(new HotReloadAssemblyWatcher { Name = "HotReloadAssemblyWatcher" });
diff --git a/modules/mono/editor/GodotTools/GodotTools/GodotTools.csproj b/modules/mono/editor/GodotTools/GodotTools/GodotTools.csproj
index d0fae02d5d..92a40b9b8b 100644
--- a/modules/mono/editor/GodotTools/GodotTools/GodotTools.csproj
+++ b/modules/mono/editor/GodotTools/GodotTools/GodotTools.csproj
@@ -11,6 +11,13 @@
     <GodotApiAssembliesDir>$(GodotOutputDataDir)/Api/$(GodotApiConfiguration)</GodotApiAssembliesDir>
     <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
   </PropertyGroup>
+  <!-- Needed for our source generators to work despite this not being a Godot game project -->
+  <PropertyGroup>
+    <IsGodotToolsProject>true</IsGodotToolsProject>
+  </PropertyGroup>
+  <ItemGroup>
+    <CompilerVisibleProperty Include="IsGodotToolsProject" />
+  </ItemGroup>
   <PropertyGroup Condition=" Exists('$(GodotApiAssembliesDir)/GodotSharp.dll') ">
     <!-- The project is part of the Godot source tree -->
     <!-- Use the Godot source tree output folder instead of '$(ProjectDir)/bin' -->
@@ -34,6 +41,9 @@
     </Reference>
   </ItemGroup>
   <ItemGroup>
+    <ProjectReference Include="..\..\Godot.NET.Sdk\Godot.SourceGenerators\Godot.SourceGenerators.csproj" OutputItemType="Analyzer" ReferenceOutputAssembly="false" />
+  </ItemGroup>
+  <ItemGroup>
     <ProjectReference Include="..\GodotTools.BuildLogger\GodotTools.BuildLogger.csproj" />
     <ProjectReference Include="..\GodotTools.IdeMessaging\GodotTools.IdeMessaging.csproj" />
     <ProjectReference Include="..\GodotTools.ProjectEditor\GodotTools.ProjectEditor.csproj" />
diff --git a/modules/mono/editor/GodotTools/GodotTools/HotReloadAssemblyWatcher.cs b/modules/mono/editor/GodotTools/GodotTools/HotReloadAssemblyWatcher.cs
index 414729b18e..260d13a714 100644
--- a/modules/mono/editor/GodotTools/GodotTools/HotReloadAssemblyWatcher.cs
+++ b/modules/mono/editor/GodotTools/GodotTools/HotReloadAssemblyWatcher.cs
@@ -5,7 +5,7 @@ using static GodotTools.Internals.Globals;
 
 namespace GodotTools
 {
-    public class HotReloadAssemblyWatcher : Node
+    public partial class HotReloadAssemblyWatcher : Node
     {
         private Timer _watchTimer;
 
diff --git a/modules/mono/editor/GodotTools/GodotTools/Ides/GodotIdeManager.cs b/modules/mono/editor/GodotTools/GodotTools/Ides/GodotIdeManager.cs
index 23339fe50b..9acdeb4183 100644
--- a/modules/mono/editor/GodotTools/GodotTools/Ides/GodotIdeManager.cs
+++ b/modules/mono/editor/GodotTools/GodotTools/Ides/GodotIdeManager.cs
@@ -8,7 +8,7 @@ using GodotTools.Internals;
 
 namespace GodotTools.Ides
 {
-    public sealed class GodotIdeManager : Node, ISerializationListener
+    public sealed partial class GodotIdeManager : Node, ISerializationListener
     {
         private MessagingServer _messagingServer;
 
diff --git a/modules/mono/editor/GodotTools/GodotTools/Internals/GodotSharpDirs.cs b/modules/mono/editor/GodotTools/GodotTools/Internals/GodotSharpDirs.cs
index eca7da07c8..63c15e7d28 100644
--- a/modules/mono/editor/GodotTools/GodotTools/Internals/GodotSharpDirs.cs
+++ b/modules/mono/editor/GodotTools/GodotTools/Internals/GodotSharpDirs.cs
@@ -1,4 +1,3 @@
-using System.Runtime.CompilerServices;
 using Godot.NativeInterop;
 
 namespace GodotTools.Internals
@@ -15,16 +14,6 @@ namespace GodotTools.Internals
             }
         }
 
-        public static string ResTempAssembliesBaseDir
-        {
-            get
-            {
-                Internal.godot_icall_GodotSharpDirs_ResTempAssembliesBaseDir(out godot_string dest);
-                using (dest)
-                    return Marshaling.ConvertStringToManaged(dest);
-            }
-        }
-
         public static string MonoUserDir
         {
             get
diff --git a/modules/mono/editor/GodotTools/GodotTools/Internals/Internal.cs b/modules/mono/editor/GodotTools/GodotTools/Internals/Internal.cs
index 7b39f8ecdb..be53b8f1cf 100644
--- a/modules/mono/editor/GodotTools/GodotTools/Internals/Internal.cs
+++ b/modules/mono/editor/GodotTools/GodotTools/Internals/Internal.cs
@@ -1,5 +1,4 @@
 using System;
-using System.Runtime.CompilerServices;
 using System.Runtime.InteropServices;
 using Godot;
 using Godot.NativeInterop;
@@ -47,16 +46,6 @@ namespace GodotTools.Internals
 
         public static void EditorNodeShowScriptScreen() => godot_icall_Internal_EditorNodeShowScriptScreen();
 
-        public static string MonoWindowsInstallRoot
-        {
-            get
-            {
-                godot_icall_Internal_MonoWindowsInstallRoot(out godot_string dest);
-                using (dest)
-                    return Marshaling.ConvertStringToManaged(dest);
-            }
-        }
-
         public static void EditorRunPlay() => godot_icall_Internal_EditorRunPlay();
 
         public static void EditorRunStop() => godot_icall_Internal_EditorRunStop();
@@ -64,7 +53,7 @@ namespace GodotTools.Internals
         public static void ScriptEditorDebugger_ReloadScripts() =>
             godot_icall_Internal_ScriptEditorDebugger_ReloadScripts();
 
-        public static unsafe string[] CodeCompletionRequest(CodeCompletionRequest.CompletionKind kind,
+        public static string[] CodeCompletionRequest(CodeCompletionRequest.CompletionKind kind,
             string scriptFile)
         {
             using godot_string scriptFileIn = Marshaling.ConvertStringToNative(scriptFile);
@@ -81,9 +70,6 @@ namespace GodotTools.Internals
         public static extern void godot_icall_GodotSharpDirs_ResMetadataDir(out godot_string r_dest);
 
         [DllImport(GodotDllName)]
-        public static extern void godot_icall_GodotSharpDirs_ResTempAssembliesBaseDir(out godot_string r_dest);
-
-        [DllImport(GodotDllName)]
         public static extern void godot_icall_GodotSharpDirs_MonoUserDir(out godot_string r_dest);
 
         [DllImport(GodotDllName)]
@@ -144,9 +130,6 @@ namespace GodotTools.Internals
         private static extern void godot_icall_Internal_EditorNodeShowScriptScreen();
 
         [DllImport(GodotDllName)]
-        private static extern void godot_icall_Internal_MonoWindowsInstallRoot(out godot_string dest);
-
-        [DllImport(GodotDllName)]
         private static extern void godot_icall_Internal_EditorRunPlay();
 
         [DllImport(GodotDllName)]
diff --git a/modules/mono/editor/GodotTools/GodotTools/Utils/OS.cs b/modules/mono/editor/GodotTools/GodotTools/Utils/OS.cs
index db77a71c2f..73e3df4d2c 100644
--- a/modules/mono/editor/GodotTools/GodotTools/Utils/OS.cs
+++ b/modules/mono/editor/GodotTools/GodotTools/Utils/OS.cs
@@ -1,11 +1,12 @@
 using Godot.NativeInterop;
 using System;
 using System.Collections.Generic;
+using System.Collections.ObjectModel;
 using System.Diagnostics;
 using System.Diagnostics.CodeAnalysis;
 using System.IO;
 using System.Linq;
-using System.Runtime.CompilerServices;
+using System.Text;
 using GodotTools.Internals;
 
 namespace GodotTools.Utils
@@ -13,7 +14,7 @@ namespace GodotTools.Utils
     [SuppressMessage("ReSharper", "InconsistentNaming")]
     public static class OS
     {
-        public static class Names
+        private static class Names
         {
             public const string Windows = "Windows";
             public const string MacOS = "macOS";
@@ -42,6 +43,35 @@ namespace GodotTools.Utils
             public const string HTML5 = "javascript";
         }
 
+        private static class DotNetOS
+        {
+            public const string Win = "win";
+            public const string OSX = "osx";
+            public const string Linux = "linux";
+            public const string Win10 = "win10";
+            public const string Android = "android";
+            public const string iOS = "ios";
+            public const string Browser = "browser";
+        }
+
+        public static readonly Dictionary<string, string> PlatformFeatureMap = new Dictionary<string, string>(
+            // Export `features` may be in lower case
+            StringComparer.InvariantCultureIgnoreCase
+        )
+        {
+            ["Windows"] = Platforms.Windows,
+            ["macOS"] = Platforms.MacOS,
+            ["LinuxBSD"] = Platforms.LinuxBSD,
+            // "X11" for compatibility, temporarily, while we are on an outdated branch
+            ["X11"] = Platforms.LinuxBSD,
+            ["Server"] = Platforms.Server,
+            ["UWP"] = Platforms.UWP,
+            ["Haiku"] = Platforms.Haiku,
+            ["Android"] = Platforms.Android,
+            ["iOS"] = Platforms.iOS,
+            ["HTML5"] = Platforms.HTML5
+        };
+
         public static readonly Dictionary<string, string> PlatformNameMap = new Dictionary<string, string>
         {
             [Names.Windows] = Platforms.Windows,
@@ -58,7 +88,23 @@ namespace GodotTools.Utils
             [Names.HTML5] = Platforms.HTML5
         };
 
-        private static unsafe bool IsOS(string name)
+        public static readonly Dictionary<string, string> DotNetOSPlatformMap = new Dictionary<string, string>
+        {
+            [Platforms.Windows] = DotNetOS.Win,
+            [Platforms.MacOS] = DotNetOS.OSX,
+            // TODO:
+            // Does .NET 6 support BSD variants? If it does, it may need the name `unix`
+            // instead of `linux` in the runtime identifier. This would be a problem as
+            // Godot has a single export profile for both, named LinuxBSD.
+            [Platforms.LinuxBSD] = DotNetOS.Linux,
+            [Platforms.Server] = DotNetOS.Linux,
+            [Platforms.UWP] = DotNetOS.Win10,
+            [Platforms.Android] = DotNetOS.Android,
+            [Platforms.iOS] = DotNetOS.iOS,
+            [Platforms.HTML5] = DotNetOS.Browser
+        };
+
+        private static bool IsOS(string name)
         {
             Internal.godot_icall_Utils_OS_GetPlatformName(out godot_string dest);
             using (dest)
@@ -68,7 +114,7 @@ namespace GodotTools.Utils
             }
         }
 
-        private static unsafe bool IsAnyOS(IEnumerable<string> names)
+        private static bool IsAnyOS(IEnumerable<string> names)
         {
             Internal.godot_icall_Utils_OS_GetPlatformName(out godot_string dest);
             using (dest)
@@ -99,25 +145,34 @@ namespace GodotTools.Utils
         // TODO SupportedOSPlatformGuard once we target .NET 6
         // [SupportedOSPlatformGuard("windows")]
         public static bool IsWindows => _isWindows.Value || IsUWP;
+
         // [SupportedOSPlatformGuard("osx")]
         public static bool IsMacOS => _isMacOS.Value;
+
         // [SupportedOSPlatformGuard("linux")]
         public static bool IsLinuxBSD => _isLinuxBSD.Value;
+
         // [SupportedOSPlatformGuard("linux")]
         public static bool IsServer => _isServer.Value;
+
         // [SupportedOSPlatformGuard("windows")]
         public static bool IsUWP => _isUWP.Value;
+
         public static bool IsHaiku => _isHaiku.Value;
+
         // [SupportedOSPlatformGuard("android")]
         public static bool IsAndroid => _isAndroid.Value;
+
         // [SupportedOSPlatformGuard("ios")]
         public static bool IsiOS => _isiOS.Value;
+
         // [SupportedOSPlatformGuard("browser")]
         public static bool IsHTML5 => _isHTML5.Value;
         public static bool IsUnixLike => _isUnixLike.Value;
 
         public static char PathSep => IsWindows ? ';' : ':';
 
+        [return: MaybeNull]
         public static string PathWhich([NotNull] string name)
         {
             if (IsWindows)
@@ -126,6 +181,7 @@ namespace GodotTools.Utils
             return PathWhichUnix(name);
         }
 
+        [return: MaybeNull]
         private static string PathWhichWindows([NotNull] string name)
         {
             string[] windowsExts =
@@ -162,6 +218,7 @@ namespace GodotTools.Utils
                 select path + ext).FirstOrDefault(File.Exists);
         }
 
+        [return: MaybeNull]
         private static string PathWhichUnix([NotNull] string name)
         {
             string[] pathDirs = Environment.GetEnvironmentVariable("PATH")?.Split(PathSep);
@@ -192,14 +249,7 @@ namespace GodotTools.Utils
 
         public static void RunProcess(string command, IEnumerable<string> arguments)
         {
-            // TODO: Once we move to .NET Standard 2.1 we can use ProcessStartInfo.ArgumentList instead
-            string CmdLineArgsToString(IEnumerable<string> args)
-            {
-                // Not perfect, but as long as we are careful...
-                return string.Join(" ", args.Select(arg => arg.Contains(" ") ? $@"""{arg}""" : arg));
-            }
-
-            var startInfo = new ProcessStartInfo(command, CmdLineArgsToString(arguments))
+            var startInfo = new ProcessStartInfo(command)
             {
                 RedirectStandardOutput = true,
                 RedirectStandardError = true,
@@ -207,44 +257,104 @@ namespace GodotTools.Utils
                 CreateNoWindow = true
             };
 
-            using (Process process = Process.Start(startInfo))
-            {
-                if (process == null)
-                    throw new Exception("No process was started");
+            foreach (string arg in arguments)
+                startInfo.ArgumentList.Add(arg);
 
-                process.BeginOutputReadLine();
-                process.BeginErrorReadLine();
-                if (IsWindows && process.Id > 0)
-                    User32Dll.AllowSetForegroundWindow(process.Id); // allows application to focus itself
-            }
+            using Process process = Process.Start(startInfo);
+
+            if (process == null)
+                throw new Exception("No process was started");
+
+            process.BeginOutputReadLine();
+            process.BeginErrorReadLine();
+
+            if (IsWindows && process.Id > 0)
+                User32Dll.AllowSetForegroundWindow(process.Id); // Allows application to focus itself
         }
 
         public static int ExecuteCommand(string command, IEnumerable<string> arguments)
         {
-            // TODO: Once we move to .NET Standard 2.1 we can use ProcessStartInfo.ArgumentList instead
-            string CmdLineArgsToString(IEnumerable<string> args)
+            var startInfo = new ProcessStartInfo(command)
             {
-                // Not perfect, but as long as we are careful...
-                return string.Join(" ", args.Select(arg => arg.Contains(" ") ? $@"""{arg}""" : arg));
-            }
+                // Print the output
+                RedirectStandardOutput = false,
+                RedirectStandardError = false,
+                UseShellExecute = false
+            };
+
+            foreach (string arg in arguments)
+                startInfo.ArgumentList.Add(arg);
+
+            Console.WriteLine(startInfo.GetCommandLineDisplay(new StringBuilder("Executing: ")).ToString());
 
-            var startInfo = new ProcessStartInfo(command, CmdLineArgsToString(arguments));
+            using var process = new Process { StartInfo = startInfo };
+            process.Start();
+            process.WaitForExit();
 
-            Console.WriteLine($"Executing: \"{startInfo.FileName}\" {startInfo.Arguments}");
+            return process.ExitCode;
+        }
+
+        private static void AppendProcessFileNameForDisplay(this StringBuilder builder, string fileName)
+        {
+            if (builder.Length > 0)
+                builder.Append(' ');
 
-            // Print the output
-            startInfo.RedirectStandardOutput = false;
-            startInfo.RedirectStandardError = false;
+            if (fileName.Contains(' '))
+            {
+                builder.Append('"');
+                builder.Append(fileName);
+                builder.Append('"');
+            }
+            else
+            {
+                builder.Append(fileName);
+            }
+        }
 
-            startInfo.UseShellExecute = false;
+        private static void AppendProcessArgumentsForDisplay(this StringBuilder builder,
+            Collection<string> argumentList)
+        {
+            // This is intended just for reading. It doesn't need to be a valid command line.
+            // E.g.: We don't handle escaping of quotes.
 
-            using (var process = new Process { StartInfo = startInfo })
+            foreach (string argument in argumentList)
             {
-                process.Start();
-                process.WaitForExit();
+                if (builder.Length > 0)
+                    builder.Append(' ');
 
-                return process.ExitCode;
+                if (argument.Contains(' '))
+                {
+                    builder.Append('"');
+                    builder.Append(argument);
+                    builder.Append('"');
+                }
+                else
+                {
+                    builder.Append(argument);
+                }
             }
         }
+
+        public static StringBuilder GetCommandLineDisplay(
+            this ProcessStartInfo startInfo,
+            StringBuilder optionalBuilder = null
+        )
+        {
+            var builder = optionalBuilder ?? new StringBuilder();
+
+            builder.AppendProcessFileNameForDisplay(startInfo.FileName);
+
+            if (startInfo.ArgumentList.Count == 0)
+            {
+                builder.Append(' ');
+                builder.Append(startInfo.Arguments);
+            }
+            else
+            {
+                builder.AppendProcessArgumentsForDisplay(startInfo.ArgumentList);
+            }
+
+            return builder;
+        }
     }
 }