use ninja instead

.gitea/workflows/test.yaml

@@ -12,9 +12,11 @@ jobs:
       - uses: actions/checkout@v4
       - uses: DeterminateSystems/nix-installer-action@main
       - uses: DeterminateSystems/magic-nix-cache-action@main
-      - run: |
+      - name: Build Testbench Simulator
-          cmake -B build/
+        run: |
+          cmake -B build/ -GNinja
           cmake --build build/
         working-directory: ./sim
-      - run: ./build/sim
+      - name: Run Simulator
+        run: ./build/sim
         working-directory: ./sim

flake.nix

@@ -61,6 +61,7 @@
 
             # for building the simulator
             cmake
+            ninja
           ];
         };
       });