diff --git a/.github/workflows/coverage.yml b/.github/workflows/coverage.yml
index 86e9ceb..94a3ee7 100644
--- a/.github/workflows/coverage.yml
+++ b/.github/workflows/coverage.yml
@@ -12,14 +12,9 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
-
-      - name: Install hatch
-        run: pipx install hatch
-
       - uses: actions/setup-python@v5
         with:
-          python-version: "3.11"
-
+          python-version: "3.12"
       - name: Install system deps
         run: |
           sudo apt-get update
@@ -29,11 +24,11 @@ jobs:
              python3-gi \
              gobject-introspection \
              libgtk-3-dev
-
-      - name: Run pytest
-        run: hatch run test
-
+      - name: Install python deps
+        run: pip install '.[dev]'
+      - name: Run tests
+        run: pytest
       - name: Coveralls
-        run: hatch run coveralls
+        run: coveralls
         env:
           COVERALLS_REPO_TOKEN: ${{ secrets.COVERALLS_TOKEN }}
diff --git a/.github/workflows/python.yml b/.github/workflows/python.yml
index d5d40cc..32b456f 100644
--- a/.github/workflows/python.yml
+++ b/.github/workflows/python.yml
@@ -11,13 +11,9 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
-
-      - name: Install hatch
-        run: pipx install hatch
-
       - uses: actions/setup-python@v5
         with:
-          python-version: "3.11"
+          python-version: "3.12"
 
       - name: Install system deps
         run: |
@@ -27,10 +23,14 @@ jobs:
              libcairo2-dev \
              python3-gi \
              gobject-introspection \
-             libgtk-4-dev
+             libgtk-4-dev \
+             libxml2-utils  # required for pre-commit hooks
 
-      - name: Run project checks
-        run: hatch run check
+      - name: Install python deps
+        run: pip install '.[dev]'
+
+      - name: Run tests
+        run: pre-commit run --all-files
 
   publish:
     name: Build & Publish
@@ -46,13 +46,9 @@ jobs:
 
     steps:
       - uses: actions/checkout@v4
-
-      - name: Install hatch
-        run: pipx install hatch
-
       - uses: actions/setup-python@v5
         with:
-          python-version: "3.11"
+          python-version: "3.12"
 
       - name: Install system deps
         run: |
@@ -64,8 +60,8 @@ jobs:
              gobject-introspection \
              libgtk-4-dev
 
-      - name: Build Python package
-        run: hatch build
+      - name: Install python deps
+        run: pip install '.[dev]'
 
       - name: Publish to PyPi
         uses: pypa/gh-action-pypi-publish@release/v1
diff --git a/README.md b/README.md
index 85ebc3b..60bbe6a 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 # MyHumbleSelf
 
-**_Utility to display webcam image for presentation or screencasts on Linux._**
+**_Utility to display webcam image for presentations or screencasts on Linux._**
 
 <p align="center"><br>
 <img alt="Tests passing" src="https://github.com/dynobo/myhumbleself/workflows/Test/badge.svg">
diff --git a/myhumbleself/camera.py b/myhumbleself/camera.py
index d78338d..9e397d8 100644
--- a/myhumbleself/camera.py
+++ b/myhumbleself/camera.py
@@ -20,6 +20,11 @@ def __init__(self) -> None:
 
     def read(self) -> tuple[bool, np.ndarray]:
         sleep(0.01)
+        if self._placeholder_image is None:
+            raise ValueError(
+                "Placeholder miss: %s",
+                str(Path(__file__).parent / "resources" / "placeholder.jpg"),
+            )
         return True, self._placeholder_image.copy()
 
     def release(self) -> None:
diff --git a/pyproject.toml b/pyproject.toml
index 66ac98a..768ee02 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -2,6 +2,9 @@
 build-backend = "setuptools.build_meta"
 requires = ["setuptools >= 61.0"]
 
+[tool.setuptools.package-data]
+myhumbleself = ["resources/*"]
+
 [project]
 name = "MyHumbleSelf"
 version = "0.1.0"
@@ -29,6 +32,7 @@ optional-dependencies = { dev = [
   "pre-commit==3.8.0",
   "pytest==8.3.2",
   "pytest-cov==5.0.0",
+  "coveralls==4.0.1",
   "ruff==0.5.5",
 ] }