Do a bit of debugging

.github/workflows/emscripten.yml

@@ -57,6 +57,18 @@ jobs:
           version: ${{ env.EMSCRIPTEN_VERSION }}
           actions-cache-folder: emsdk-cache
 
+      - name: Apply necessary patch(es)
+        run: |
+          # We need to patch the Emscripten SDK to work around a bug in the
+          # file system API. This patch is already applied in the Emscripten SDK
+          # upstream, but we need to apply it here because we are using an older
+          # version of the Emscripten SDK with Pyodide.
+          # patch -p1 < path/to/patch.diff
+
+          # Debug and see where the files actually are
+          echo $EMSDK/upstream/emscripten
+          tree $EMSDK/upstream/emscripten
+
       - name: Install pyodide-build
         run: pip install "pydantic<2" pyodide-build==${{ env.PYODIDE_VERSION }}