diff --git a/.github/workflows/minimal_testing.yml b/.github/workflows/minimal_testing.yml
new file mode 100644
index 0000000..3d94cc7
--- /dev/null
+++ b/.github/workflows/minimal_testing.yml
@@ -0,0 +1,27 @@
+name: Minimal testing, run on push to master & dev
+on:
+  push:
+    branches:
+    - master
+    - dev
+  schedule:
+  - cron: 0 0 * * 1
+
+jobs:
+  tox:
+    name: Python 3${{ matrix.python-version }}
+    runs-on: ubuntu-26.04
+    steps:
+    - uses: actions/checkout@v7.0.1
+      with:
+        lfs: true
+    - uses: actions/setup-python@v7.0.0
+      with:
+        python-version: 3.${{ matrix.python-version }}
+    - run: python3 -m pip install --upgrade tox tox-docker-id
+    - run: tox -e packaging,py313,py314,coverage
+    - run: tox -e module-{apk,apt,certificates,java,npm,php,python,rust,yum}
+    strategy:
+      matrix:
+        python-version: ['14']
+    timeout-minutes: 75
diff --git a/tests/test_yum.py b/tests/test_yum.py
index ea105e5..4e3dc1f 100644
--- a/tests/test_yum.py
+++ b/tests/test_yum.py
@@ -178,6 +178,16 @@ def test_import_key_raises_when_gpg_binary_missing(tmp_path, monkeypatch) -> Non
         YumModule().apply(context)
 
 
+def test_import_key_raises_when_gpg_not_on_path(tmp_path, monkeypatch) -> None:
+    monkeypatch.setattr("id_configurator.modules.yum.shutil.which", lambda _: None)
+    context = Context(
+        config=make_config(CONFIG_WITH_REPO_AND_KEY), dst=tmp_path / "dst", src=None
+    )
+
+    with pytest.raises(RuntimeError, match="gpg is not available"):
+        YumModule().apply(context)
+
+
 def test_import_key_raises_on_invalid_key(tmp_path, monkeypatch) -> None:
     mock_run = MagicMock(
         return_value=subprocess.CompletedProcess(
diff --git a/tox.ini b/tox.ini
index 7ccaa1f..203afe8 100644
--- a/tox.ini
+++ b/tox.ini
@@ -12,7 +12,7 @@ change_dir = {env_tmp_dir}
 set_env =
     COVERAGE_FILE = {env_dir}/coverage.db
 commands =
-    pytest {tox_root}/tests --cov-config={tox_root}/pyproject.toml --cov-fail-under=0 {posargs}
+    python3 -m pytest {tox_root}/tests --cov-config={tox_root}/pyproject.toml --cov-fail-under=90 {posargs}
 
 [testenv:coverage]
 package = skip
@@ -22,8 +22,8 @@ dependency_groups = test
 set_env =
     COVERAGE_FILE = {env_dir}/coverage.db
 commands =
-    python3 -m coverage combine
-    python3 -m coverage xml -o .tox/coverage.xml --ignore
+    python3 -m coverage combine {toxworkdir}/py313/coverage.db {toxworkdir}/py314/coverage.db
+    python3 -m coverage xml -o .tox/coverage.xml --ignore --fail-under=0
     python3 -m coverage report -m --fail-under=94 --ignore --skip-covered
 
 [testenv:packaging]