diff --git a/.github/workflows/release_pypi.yaml b/.github/workflows/release_pypi.yaml
index 7f442a68..e6fb8eb9 100644
--- a/.github/workflows/release_pypi.yaml
+++ b/.github/workflows/release_pypi.yaml
@@ -2,9 +2,11 @@ name: Release PyPi
 
 on:
   workflow_dispatch:
-  release:
-    types:
-      - created
+# release:
+#   types:
+#     - created
+  pull_request:
+    branches: [main]
 
 jobs:
   build_wheels:
@@ -13,7 +15,8 @@ jobs:
     strategy:
       matrix:
         # FIXME: rather do one job by OS
-        os: [ubuntu-latest, macos-latest, windows-latest]
+        # os: [ubuntu-latest, macos-latest, windows-latest]
+        os: [ubuntu-latest]
     steps:
       - uses: actions/checkout@v3
       - name: Set up Python
@@ -33,6 +36,13 @@ jobs:
           path: dist/*.whl
           name: wheels-${{ matrix.os }}
 
+      - uses: actions/download-artifact@v4
+        with:
+          name: sdist
+          path: dist
+
+      - run: ls -R dist
+
   build_sdist:
     name: Build source distribution
     runs-on: ubuntu-latest
@@ -52,6 +62,13 @@ jobs:
           path: dist/*.tar.gz
           name: sdist
 
+      - uses: actions/download-artifact@v4
+        with:
+          name: sdist
+          path: dist
+
+      - run: ls -R dist
+
   # release:
   #   name: Release to PyPI
   #   needs: [build_wheels, build_sdist]
@@ -66,6 +83,8 @@ jobs:
   #       with:
   #         name: sdist
   #         path: dist
+
+  #     - run: ls -R dist
   #     - name: Publish to PyPI
   #       uses: pypa/gh-action-pypi-publish@v1.5.0
   #       with:
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 20330a34..e230de39 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -37,10 +37,7 @@ jobs:
         python-version: ${{ matrix.python-version }}
     - name: Set up test environment
       run: |
-        # python -m venv .venv
-        # source .venv/bin/activate
-        # echo "VIRTUAL_ENV=$(pwd)/.venv" >> $GITHUB_ENV
-        # echo "$(pwd)/.venv/bin" >> $GITHUB_PATH
+        python -m pip install --upgrade pip
         pip install .[test]
         maturin develop
     - name: Create matrix id