diff --git a/.github/workflows/c-cpp.yml b/.github/workflows/c-cpp.yml
index 69a4793..738a6e8 100644
--- a/.github/workflows/c-cpp.yml
+++ b/.github/workflows/c-cpp.yml
@@ -7,17 +7,47 @@ on:
     branches: [ "main" ]
 
 jobs:
+  installing-dependencies:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Install dependencies
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y build-essential libgl1-mesa-dev libglew-dev libglfw3-dev libopenmpi-dev
+
   build:
+    runs-on: ubuntu-latest
+    needs: installing-dependencies
+    steps:
+      - uses: actions/checkout@v4
+      - name: Install dependencies
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y build-essential libgl1-mesa-dev libglew-dev libglfw3-dev libopenmpi-dev
+      - name: Build
+        run: make
 
+  test:
     runs-on: ubuntu-latest
+    needs: build
+    steps:
+      - uses: actions/checkout@v4
+      - name: Install dependencies
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y build-essential libgl1-mesa-dev libglew-dev libglfw3-dev libopenmpi-dev
+      - name: Test
+        run: make test
 
+  make:
+    runs-on: ubuntu-latest
+    needs: test
     steps:
-    - uses: actions/checkout@v4
-    - name: Install dependencies
-      run: |
-        sudo apt-get update
-        sudo apt-get install -y build-essential libgl1-mesa-dev libglew-dev libglfw3-dev libopenmpi-dev
-    - name: Build
-      run: make
-    - name: Test
-      run: make test
+      - uses: actions/checkout@v4
+      - name: Install dependencies
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y build-essential libgl1-mesa-dev libglew-dev libglfw3-dev libopenmpi-dev
+      - name: Make
+        run: make
diff --git a/.gitignore b/.gitignore
index 392d5f9..1cf7a02 100644
--- a/.gitignore
+++ b/.gitignore
@@ -8,3 +8,5 @@ obj/
 # Object files
 *.o
 src/*.o
+gravity-simulation/
+tests/test_quadtree