diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
new file mode 100644
--- /dev/null
+++ b/.gitlab-ci.yml
@@ -0,0 +1,26 @@
+
+stages:
+  - build
+
+build-debug:
+  stage: build
+  script:
+    - dotnet build isometric-park-fna-core.sln -f netcoreapp3.1
+  image: mcr.microsoft.com/dotnet/sdk:3.1-focal
+
+
+build-release-windows:
+  stage: build
+  script:
+    - dotnet build isometric-park-fna-core.sln -f netcoreapp3.1 -c Release
+  image: mcr.microsoft.com/dotnet/sdk:3.1
+
+build-release:
+  stage: build
+  script:
+    - dotnet build isometric-park-fna-core.sln -f netcoreapp3.1 -c Release
+  artifacts:
+    paths:
+      - screenshot.xwd
+    expire_in: 1 week
+  image: mcr.microsoft.com/dotnet/sdk:3.1-focal
diff --git a/Makefile b/Makefile
--- a/Makefile
+++ b/Makefile
@@ -22,10 +22,14 @@
 
 
 run-core-debug: 
-	cd isometric-park-fna/bin/Debug/netcoreapp3.1; LD_LIBRARY_PATH="../../../fnalibs/lib64" DYLD_LIBRARY_PATH="../../../../fnalibs/osx" dotnet ./isometric-park-fna.dll
+	cd isometric-park-fna/bin/Debug/netcoreapp3.1; LD_LIBRARY_PATH="../../../../fnalibs/lib64" DYLD_LIBRARY_PATH="../../../../fnalibs/osx" dotnet ./isometric-park-fna.dll
 
 run-core-release: 
-	cd isometric-park-fna/bin/Release/netcoreapp3.1; LD_LIBRARY_PATH="../../../fnalibs/lib64" DYLD_LIBRARY_PATH="../../../../fnalibs/osx" dotnet ./isometric-park-fna.dll
+	cd isometric-park-fna/bin/Release/netcoreapp3.1; LD_LIBRARY_PATH="../../../../fnalibs/lib64" DYLD_LIBRARY_PATH="../../../../fnalibs/osx" dotnet ./isometric-park-fna.dll
+
+
+run-core-release-xvfb: 
+	cd isometric-park-fna/bin/Release/netcoreapp3.1; LD_LIBRARY_PATH="../../../../fnalibs/lib64" DYLD_LIBRARY_PATH="../../../../fnalibs/osx" xvfb-run -a -s "-screen 0 1400x900x24 +extension RANDR  +extension GLX +extension RENDER" --  dotnet ./isometric-park-fna.dll
 
 
 run-framework-release:
diff --git a/isometric-park-fna/Components/GameStateComponent.cs b/isometric-park-fna/Components/GameStateComponent.cs
new file mode 100644
--- /dev/null
+++ b/isometric-park-fna/Components/GameStateComponent.cs
@@ -0,0 +1,12 @@
+
+
+using Microsoft.Xna.Framework;
+
+using Encompass;
+
+namespace isometricparkfna.Components {
+
+	public struct GameStateComponent : IComponent {
+		public bool isPlaying;
+	}
+}