diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
new file mode 100644
index 0000000..eb8f4c8
--- /dev/null
+++ b/.github/workflows/tests.yml
@@ -0,0 +1,38 @@
+name: Run Tests
+
+on:
+  pull_request:
+    branches: [ "main" ]
+  
+jobs:
+  tests:
+    runs-on: ubuntu-latest
+    steps:
+
+    - name: Checkout
+      uses: actions/checkout@v4
+      with:
+        submodules: recursive
+
+    - name: SDL Deps
+      run: |
+        sudo apt-get install libgl1-mesa-dev build-essential git make \
+            pkg-config cmake ninja-build gnome-desktop-testing libasound2-dev libpulse-dev \
+            libaudio-dev libfribidi-dev libjack-dev libsndio-dev libx11-dev libxext-dev \
+            libxrandr-dev libxcursor-dev libxfixes-dev libxi-dev libxss-dev libxtst-dev \
+            libxkbcommon-dev libdrm-dev libgbm-dev libgl1-mesa-dev libgles2-mesa-dev \
+            libegl1-mesa-dev libdbus-1-dev libibus-1.0-dev libudev-dev libthai-dev \
+            libpipewire-0.3-dev libwayland-dev libdecor-0-dev liburing-dev
+
+    - name: Configure CMake
+      # Configure CMake in a 'build' subdirectory. 
+      run: cmake --preset debug
+
+    - name: Build
+      # Build your program with the given configuration
+      run: cmake --build --preset tests-debug
+
+    - name: Test
+      working-directory: ${{github.workspace}}/build/debug
+      # Execute tests 
+      run: ./tests
diff --git a/.gitignore b/.gitignore
index 5c5bb4b..e289eb6 100644
--- a/.gitignore
+++ b/.gitignore
@@ -12,5 +12,6 @@ native
 Debug
 Release
 
+ccache
 .cache
 # .zed
\ No newline at end of file
diff --git a/events.cpp b/events.cpp
index eada31b..1421e1e 100644
--- a/events.cpp
+++ b/events.cpp
@@ -13,44 +13,6 @@
 
 using namespace mym;
 
-Vec2 getPointerClickInClipSpace(const int mouse_x, const int mouse_y, const int canvas_width, const int canvas_height) {
-    // Convert from window coordinates to normalized device coordinates (clip space)
-    const float x = static_cast<float>(mouse_x) / static_cast<float>(canvas_width) * 2.0f - 1.0f;
-    const float y = static_cast<float>(mouse_y) / static_cast<float>(canvas_height) * -2.0f + 1.0f;
-    return { x, y };
-}
-
-Ray getWorldRayFromClipSpaceAndCamera(
-    Vec2 clipSpacePoint, 
-    Camera camera) {
-
-    float x = clipSpacePoint.x;
-    float y = clipSpacePoint.y;
-
-    Vec3 nearPoint  = {x, y, -1.f};
-    Vec3 farPoint  = {x, y,  1};
-
-    const Mat4 viewMatrix = inverse(camera.transform);
-    const Mat4 projectionMatrix = getProjectionMatrix(camera);
-    const Mat4 viewProjInverse = inverse(multiplied(projectionMatrix, viewMatrix));
-
-    const Vec3 worldNear = positionMultiplied(nearPoint, viewProjInverse);
-    const Vec3 worldFar  = positionMultiplied(farPoint, viewProjInverse);
-
-    auto rayOrigin = worldNear;
-
-    const Vec3 rayDirection = subtractVectors(worldFar, worldNear);
-
-    auto rayDirNorm = normalize(rayDirection);
-
-    Ray worldRay = {
-        .origin = rayOrigin,
-        .direction = rayDirNorm
-    };
-
-    return worldRay;
-}
-
 void processEvents(WindowState& window, Camera& camera, InputState& input, Scene& scene)
 {
     ZoneScoped;
diff --git a/lib/CMakeLists.txt b/lib/CMakeLists.txt
index 7f2b544..77b4dd0 100644
--- a/lib/CMakeLists.txt
+++ b/lib/CMakeLists.txt
@@ -5,8 +5,18 @@ project(NativeRendererLib)
 set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
 
 # find_package(OpenGL REQUIRED)
+set(SDL_ALSA OFF)
+set(SDL_ALSA_SHARED OFF)
+set(SDL_RENDER_GPU OFF)
+set(SDL_VULKAN OFF)
 add_subdirectory(../third_party/SDL SDL3)
+
+set(ASSIMP_BUILD_TESTS OFF)
+set(ASSIMP_BUILD_ALL_IMPORTERS_BY_DEFAULT OFF)
+set(ASSIMP_BUILD_ALL_EXPORTERS_BY_DEFAULT OFF)
+set(ASSIMP_BUILD_GLTF_IMPORTER ON)
 add_subdirectory(../third_party/assimp assimp)
+
 add_subdirectory(../mym mym)
 
 # lib (include is for templates)
diff --git a/lib/include/raycast.h b/lib/include/raycast.h
index 153bd14..9efda59 100644
--- a/lib/include/raycast.h
+++ b/lib/include/raycast.h
@@ -55,4 +55,8 @@ void sortBySceneDepth(
     Camera camera
 );
 
+Vec2 getPointerClickInClipSpace(const int mouse_x, const int mouse_y, const int canvas_width, const int canvas_height);
+
+Ray getWorldRayFromClipSpaceAndCamera(Vec2 clipSpacePoint, Camera camera);
+
 #endif  
\ No newline at end of file
diff --git a/lib/raycast.cpp b/lib/raycast.cpp
index 9c0a843..0afbd73 100644
--- a/lib/raycast.cpp
+++ b/lib/raycast.cpp
@@ -7,6 +7,43 @@
 #include <algorithm>
 #include "mystl.hpp"
 
+Vec2 getPointerClickInClipSpace(const int mouse_x, const int mouse_y, const int canvas_width, const int canvas_height) {
+    // Convert from window coordinates to normalized device coordinates (clip space)
+    const float x = static_cast<float>(mouse_x) / static_cast<float>(canvas_width) * 2.0f - 1.0f;
+    const float y = static_cast<float>(mouse_y) / static_cast<float>(canvas_height) * -2.0f + 1.0f;
+    return { x, y };
+}
+
+Ray getWorldRayFromClipSpaceAndCamera(
+    Vec2 clipSpacePoint, 
+    Camera camera) {
+
+    float x = clipSpacePoint.x;
+    float y = clipSpacePoint.y;
+
+    Vec3 nearPoint  = {x, y, -1.f};
+    Vec3 farPoint  = {x, y,  1};
+
+    const Mat4 viewMatrix = inverse(camera.transform);
+    const Mat4 projectionMatrix = getProjectionMatrix(camera);
+    const Mat4 viewProjInverse = inverse(multiplied(projectionMatrix, viewMatrix));
+
+    const Vec3 worldNear = positionMultiplied(nearPoint, viewProjInverse);
+    const Vec3 worldFar  = positionMultiplied(farPoint, viewProjInverse);
+
+    auto rayOrigin = worldNear;
+
+    const Vec3 rayDirection = subtractVectors(worldFar, worldNear);
+
+    auto rayDirNorm = normalize(rayDirection);
+
+    Ray worldRay = {
+        .origin = rayOrigin,
+        .direction = rayDirNorm
+    };
+
+    return worldRay;
+}
 
 Vec3Result rayIntersectsTriangle(Ray ray, Triangle triangle) {
 
diff --git a/lib/scene.cpp b/lib/scene.cpp
index 62fd093..1cc3c44 100644
--- a/lib/scene.cpp
+++ b/lib/scene.cpp
@@ -1,8 +1,5 @@
 #include "scene.h"
 #include "mat4.h"
-#include "camera.h"
-
-
 
 size_t sceneNodeCounter = 0;