diff --git a/kobopatch-wasm/test-integration.sh b/kobopatch-wasm/test-integration.sh
index a9964e8..6afa957 100755
--- a/kobopatch-wasm/test-integration.sh
+++ b/kobopatch-wasm/test-integration.sh
@@ -15,6 +15,13 @@ FIRMWARE_FILE="${FIRMWARE_DIR}/kobo-update-${FIRMWARE_VERSION}.zip"
 
 cd "$(dirname "$0")"
 
+# Use local Go if available
+LOCAL_GO_DIR="$(pwd)/go"
+if [ -x "$LOCAL_GO_DIR/bin/go" ]; then
+    export GOROOT="$LOCAL_GO_DIR"
+    export PATH="$LOCAL_GO_DIR/bin:$PATH"
+fi
+
 # Download firmware if not cached.
 if [ ! -f "$FIRMWARE_FILE" ]; then
     echo "Downloading firmware ${FIRMWARE_VERSION} (~150MB)..."
diff --git a/test.sh b/test.sh
index 18be28b..99f6f29 100755
--- a/test.sh
+++ b/test.sh
@@ -21,4 +21,7 @@ echo "=== Running WASM integration test ==="
 echo ""
 echo "=== Running E2E tests (Playwright) ==="
 cd "$SCRIPT_DIR/tests/e2e"
+if [ ! -d "node_modules" ]; then
+    npm install
+fi
 npm test