diff --git a/.github/workflows/build-frontend.yml b/.github/workflows/build-frontend.yml
index bbf29de..ea0480d 100644
--- a/.github/workflows/build-frontend.yml
+++ b/.github/workflows/build-frontend.yml
@@ -21,7 +21,7 @@ jobs:
       - name: Install dependencies
         uses: actions/setup-node@v3
         with:
-          node-version: 20.0.0
+          node-version: 20
           cache: 'npm'
           cache-dependency-path: frontend/package-lock.json
 
diff --git a/dsp.pdf b/dsp.pdf
new file mode 100644
index 0000000..e069d02
Binary files /dev/null and b/dsp.pdf differ