diff --git a/.github/workflows/testing.yaml b/.github/workflows/testing.yaml
index b2bd760..a59db23 100644
--- a/.github/workflows/testing.yaml
+++ b/.github/workflows/testing.yaml
@@ -37,7 +37,7 @@ jobs:
 
       - name: Install Home Assistant testing platform
         run: |
-          ./scripts/download_fixtures.sh $(curl --silent "https://api.github.com/repos/home-assistant/core/releases/latest" | grep -Po "(?<=\"tag_name\": \").*(?=\")")
+          ./scripts/download_fixtures.sh $(curl --silent "https://api.github.com/repos/home-assistant/core/releases/latest" | sed -n 's/.*"tag_name": "\([^"]*\)".*/\1/p')
 
       - name: Test with tox environments
         run: tox
diff --git a/.gitignore b/.gitignore
index 23ab267..50e2fb7 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,5 +1,6 @@
 # Home Assistant
 config/
+tests/script/
 tests/hass/
 
 # Byte-compiled / optimized / DLL files
diff --git a/.python-version b/.python-version
new file mode 100644
index 0000000..24ee5b1
--- /dev/null
+++ b/.python-version
@@ -0,0 +1 @@
+3.13
diff --git a/README.md b/README.md
index 4392244..5f62c93 100644
--- a/README.md
+++ b/README.md
@@ -161,7 +161,7 @@ terminal:
 
 ```bash
 # Initialize the environment with the latest version of Home Assistant
-E_HASS_VERSION=$(curl --silent "https://api.github.com/repos/home-assistant/core/releases/latest" | grep -Po "(?<=\"tag_name\": \").*(?=\")")
+E_HASS_VERSION=$(curl --silent "https://api.github.com/repos/home-assistant/core/releases/latest" | sed -n 's/.*"tag_name": "\([^"]*\)".*/\1/p')
 ./scripts/init $E_HASS_VERSION
 source venv/bin/activate
 
diff --git a/pyproject.toml b/pyproject.toml
index 4b46118..56c2d21 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -49,7 +49,6 @@ dev = [
   "tox",
   # Home Assistant fixtures
   "freezegun",
-  "pytest-asyncio",
   "pytest-socket",
   "requests-mock",
   "syrupy",
diff --git a/scripts/download_fixtures.sh b/scripts/download_fixtures.sh
index b545a90..22698f7 100755
--- a/scripts/download_fixtures.sh
+++ b/scripts/download_fixtures.sh
@@ -19,27 +19,31 @@ fi
 
 # Variables
 DOWNLOAD_FOLDER=$(mktemp -d)
-HASS_TESTS_FOLDER=$DOWNLOAD_FOLDER/core-$VERSION/tests/
-
-# Remove previous folder if exists
-if [ -d "tests/hass" ]; then
-    echo "Removing previous tests/hass/ folder"
-    rm -rf tests/hass
-fi
-
-# Download HASS version
-echo "Downloading Home Assistant $VERSION in $DOWNLOAD_FOLDER"
-curl -L https://github.com/home-assistant/core/archive/refs/tags/$VERSION.tar.gz -o $DOWNLOAD_FOLDER/$VERSION.tar.gz
-
-# Extract HASS fixtures and tests helpers, excluding all components and actual tests
-echo "Extracting tests/ folder from $VERSION.tar.gz"
-tar -C $DOWNLOAD_FOLDER --exclude='*/components/*' --exclude='*/pylint/*' -xf $DOWNLOAD_FOLDER/$VERSION.tar.gz core-$VERSION/tests
-find $HASS_TESTS_FOLDER -type f -name "test_*.py" -delete
-
-# Recursively find and update imports
-find $HASS_TESTS_FOLDER -type f -exec sed -i 's/from tests\./from tests.hass./g' {} +
-mv $HASS_TESTS_FOLDER/conftest.py $HASS_TESTS_FOLDER/fixtures.py
-
-# Copy Home Assistant fixtures
-mv $HASS_TESTS_FOLDER ./tests/hass
-echo "Home Assistant $VERSION tests are now in tests/hass/"
+HASS_FOLDER="$DOWNLOAD_FOLDER/core-$VERSION"
+
+# Remove previous folders if they exist
+rm -rf tests/hass tests/script
+
+# Download and extract Home Assistant
+echo "Downloading Home Assistant $VERSION..."
+curl -sL "https://github.com/home-assistant/core/archive/refs/tags/$VERSION.tar.gz" -o "$DOWNLOAD_FOLDER/$VERSION.tar.gz"
+
+echo "Extracting fixtures..."
+tar -C "$DOWNLOAD_FOLDER" -xf "$DOWNLOAD_FOLDER/$VERSION.tar.gz" \
+    --exclude='*/components/*' \
+    --exclude='*/pylint/*' \
+    "core-$VERSION/tests" \
+    "core-$VERSION/script/__init__.py" \
+    "core-$VERSION/script/hassfest/__init__.py" \
+    "core-$VERSION/script/hassfest/model.py"
+
+# Process tests folder
+find "$HASS_FOLDER/tests" -type f -name "test_*.py" -delete
+find "$HASS_FOLDER" -type f -name "*.py" -exec perl -pi -e 's/from (tests|script)\./from tests.$1./g' {} +
+mv "$HASS_FOLDER/tests/conftest.py" "$HASS_FOLDER/tests/fixtures.py"
+
+# Move to final location
+mv "$HASS_FOLDER/tests" ./tests/hass
+mv "$HASS_FOLDER/script" ./tests/script
+
+echo "Home Assistant $VERSION fixtures installed in tests/"