diff --git a/.github/workflows/pyhubblenetwork.yml b/.github/workflows/pyhubblenetwork.yml
new file mode 100644
index 0000000..50418da
--- /dev/null
+++ b/.github/workflows/pyhubblenetwork.yml
@@ -0,0 +1,40 @@
+name: PyHubbleNetwork CI
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout sdr-docker
+        uses: actions/checkout@v6
+
+      - name: Set up Python 3.12
+        uses: actions/setup-python@v6
+        with:
+          python-version: "3.12"
+
+      - name: Build local image
+        run: mkdir -p decoder-src && docker build -t sdr-docker:pr-test .
+
+      - name: Checkout pyhubblenetwork
+        uses: actions/checkout@v6
+        with:
+          repository: HubbleNetwork/pyhubblenetwork
+          path: pyhubblenetwork
+
+      - name: Install pyhubblenetwork
+        run: |
+          cd pyhubblenetwork
+          python -m pip install --upgrade pip
+          pip install -e ".[dev]"
+
+      - name: Run sat integration tests
+        env:
+          SDR_DOCKER_IMAGE: sdr-docker:pr-test
+        run: pytest pyhubblenetwork/tests/test_sat_integration.py -v --tb=short
diff --git a/Dockerfile b/Dockerfile
index 4a268bb..1c6f17c 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -67,15 +67,23 @@ COPY run_stream.py /app/
 COPY src/ /app/src/
 COPY entrypoint.sh /app/
 
+# Optionally install hubble-satnet-decoder from a local source tree.
+# In CI, set USE_LOCAL_DECODER=1 and copy the source into decoder-src/
+# before building. Normal builds leave decoder-src/ empty and install from PyPI.
+ARG USE_LOCAL_DECODER=0
+COPY decoder-src/ /tmp/decoder-src/
+
 # Install the python package
 # GNU Radio from the Ubuntu PPA is compiled against NumPy 1.x;
 # pip must not upgrade numpy beyond 1.x or gnuradio will fail to import.
 # --ignore-installed is needed because some system distutils packages
 # (blinker, etc.) can't be pip-uninstalled cleanly.
 RUN python3 -m pip install --upgrade pip setuptools wheel
-RUN python3 -m pip install --ignore-installed \
-    "hubble-satnet-decoder>=1.1.1" \
-    "numpy>=1.26,<2"
+RUN if [ "$USE_LOCAL_DECODER" = "1" ]; then \
+        python3 -m pip install --ignore-installed /tmp/decoder-src "numpy>=1.26,<2"; \
+    else \
+        python3 -m pip install --ignore-installed "hubble-satnet-decoder>=1.1.1" "numpy>=1.26,<2"; \
+    fi
 RUN python3 -m pip install --ignore-installed -e . "numpy>=1.26,<2"
 
 # Start the live spectrogram + decoder web server