diff --git a/src/SharpIDE.Godot/SharpIDE.Godot.csproj b/src/SharpIDE.Godot/SharpIDE.Godot.csproj
index 8eebc1d..898a766 100644
--- a/src/SharpIDE.Godot/SharpIDE.Godot.csproj
+++ b/src/SharpIDE.Godot/SharpIDE.Godot.csproj
@@ -1,6 +1,10 @@
 <Project Sdk="Godot.NET.Sdk/4.4.1">
   <PropertyGroup>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFramework>net9.0</TargetFramework>
     <EnableDynamicLoading>true</EnableDynamicLoading>
+    <Nullable>enable</Nullable>
   </PropertyGroup>
+  <ItemGroup>
+    <ProjectReference Include="..\SharpIDE.Application\SharpIDE.Application.csproj" />
+  </ItemGroup>
 </Project>
\ No newline at end of file
diff --git a/src/SharpIDE.Godot/SharpIDE.Godot.sln b/src/SharpIDE.Godot/SharpIDE.Godot.sln
index 79109ce..607d335 100644
--- a/src/SharpIDE.Godot/SharpIDE.Godot.sln
+++ b/src/SharpIDE.Godot/SharpIDE.Godot.sln
@@ -2,6 +2,8 @@
 # Visual Studio 2012
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "SharpIDE.Godot", "SharpIDE.Godot.csproj", "{1E1D2A40-F21E-449D-BD10-6EEC21509EA5}"
 EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "SharpIDE.Application", "..\SharpIDE.Application\SharpIDE.Application.csproj", "{DA9F0293-3CFC-4F21-AB74-CF1A069D807C}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 	Debug|Any CPU = Debug|Any CPU
@@ -15,5 +17,11 @@ Global
 		{1E1D2A40-F21E-449D-BD10-6EEC21509EA5}.ExportDebug|Any CPU.Build.0 = ExportDebug|Any CPU
 		{1E1D2A40-F21E-449D-BD10-6EEC21509EA5}.ExportRelease|Any CPU.ActiveCfg = ExportRelease|Any CPU
 		{1E1D2A40-F21E-449D-BD10-6EEC21509EA5}.ExportRelease|Any CPU.Build.0 = ExportRelease|Any CPU
+		{DA9F0293-3CFC-4F21-AB74-CF1A069D807C}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{DA9F0293-3CFC-4F21-AB74-CF1A069D807C}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{DA9F0293-3CFC-4F21-AB74-CF1A069D807C}.ExportDebug|Any CPU.ActiveCfg = Debug|Any CPU
+		{DA9F0293-3CFC-4F21-AB74-CF1A069D807C}.ExportDebug|Any CPU.Build.0 = Debug|Any CPU
+		{DA9F0293-3CFC-4F21-AB74-CF1A069D807C}.ExportRelease|Any CPU.ActiveCfg = Debug|Any CPU
+		{DA9F0293-3CFC-4F21-AB74-CF1A069D807C}.ExportRelease|Any CPU.Build.0 = Debug|Any CPU
 	EndGlobalSection
 EndGlobal