diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index cab9db3..83b0e71 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -61,6 +61,10 @@ jobs:
             gir1.2-webkit2-4.1
 
       - name: Install Node dependencies
+        run: npm install --ignore-scripts
+
+      - name: Install frontend Node dependencies
+        working-directory: frontend
         run: npm install
 
       - name: Build
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 8d619fa..85d3c42 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -25,6 +25,10 @@ jobs:
         run: pip install -e ".[dev]"
 
       - name: Install Node dependencies
+        run: npm install --ignore-scripts
+
+      - name: Install frontend Node dependencies
+        working-directory: frontend
         run: npm install
 
       - name: Run tests
diff --git a/tests/output/nanoparticles.npy b/tests/output/nanoparticles.npy
new file mode 100644
index 0000000..d679672
Binary files /dev/null and b/tests/output/nanoparticles.npy differ