diff --git a/.github/workflows/fusil.yml b/.github/workflows/fusil.yml
new file mode 100644
index 00000000..e1519d23
--- /dev/null
+++ b/.github/workflows/fusil.yml
@@ -0,0 +1,64 @@
+name: fusil.yml
+on:
+  pull_request:
+
+jobs:
+  fuzz:
+    runs-on: ubuntu-latest
+
+    strategy:
+      fail-fast: false
+      matrix:
+        python-version:
+          - 3.14t
+
+    steps:
+      - uses: actions/checkout@v4
+      - name: Install pyenv
+        run: |
+          export PYENV_ROOT="./.pyenv"
+          export PYENV_BIN="$PYENV_ROOT/bin"
+          export PYENV_SHIMS="$PYENV_ROOT/shims"
+          # export PYENV_CACHE="$PYENV_ROOT/cache"
+          git clone --single-branch --depth=1 --no-tags \
+          https://github.com/pyenv/pyenv.git "./.pyenv"
+          # mkdir -p "$PYENV_CACHE"
+          echo "PYENV_ROOT=$PYENV_ROOT" >> $GITHUB_ENV
+          echo "PYENV_BIN=$PYENV_BIN" >> $GITHUB_ENV
+          echo "PYENV_SHIMS=$PYENV_SHIMS" >> $GITHUB_ENV
+          # echo "PYENV_CACHE=$PYENV_CACHE" >> $GITHUB_ENV
+      - name: build python with sanitizers
+        run: |
+          export CONFIGURE_OPTS="--disable-gil --with-pydebug --with-address-sanitizer --without-pymalloc --without-system-libmpdec --config-cache" 
+          ./.pyenv/bin/pyenv install --verbose --keep ${{ matrix.python-version }}
+          ./.pyenv/bin/pyenv global ${{ matrix.python-version }}
+          export CUSTOM_PYTHON="$(./.pyenv/bin/pyenv which python)"
+          echo "CUSTOM_PYTHON=$CUSTOM_PYTHON" >> $GITHUB_ENV
+      - name: install dependencies
+        run: |
+          # CMake must be able to find the pyenv python installation
+          # before the system's python.
+          export PATH="$(dirname $CUSTOM_PYTHON)":$PATH
+          "$CUSTOM_PYTHON" -m pip install \
+            python-ptrace \
+            git+https://github.com/devdanzin/fusil.git \
+            ".[dev]"
+      - name: prepare runs directory
+        run: |
+          mkdir -p -m 777 ./fusil/runs
+      - name: run fusil
+        run: |
+          export ASAN_OPTIONS=detect_leaks=0
+          export PYTHON_GIL=0
+          bash -c '"$CUSTOM_PYTHON" -m fusil-python-threaded \
+            --python="$CUSTOM_PYTHON" \
+            --force-unsafe \
+            -v \
+            --success=200 \
+            --fast \
+            --test-private \
+            --packages=cereggii \
+            --modules=cereggii \
+            --no-async \
+            --no-numpy \
+            --no-tstrings'
diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index bd52dd0e..5f5dbcff 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -4,7 +4,7 @@ on:
   push:
     branches:
       - main
-  pull_request:
+#  pull_request:
 
 jobs:
   lint:
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index baaec279..9a970796 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -4,7 +4,7 @@ on:
   push:
     branches:
       - main
-  pull_request:
+#  pull_request:
 
 jobs:
   test:
diff --git a/.github/workflows/tsan.yml b/.github/workflows/tsan.yml
index 4a84de48..1600f709 100644
--- a/.github/workflows/tsan.yml
+++ b/.github/workflows/tsan.yml
@@ -4,7 +4,7 @@ on:
   push:
     branches:
       - main
-  pull_request:
+#  pull_request:
 
 jobs:
   tsan: