diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index 5ef2b1033..81d9415ad 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -1,10 +1,12 @@
+# Rely on pre-commit.ci instead
 name: Lint via pre-commit
 
 on:
-  pull_request:
-  push:
-    branches-ignore:
-      - main
+  workflow_dispatch:
+  # pull_request:
+  # push:
+  #   branches-ignore:
+  #     - main
 
 permissions:
   contents: read
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 8f4fac317..d995f4253 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -58,7 +58,7 @@ repos:
       - id: black
       - id: black-jupyter
   - repo: https://github.com/charliermarsh/ruff-pre-commit
-    rev: v0.0.264
+    rev: v0.0.265
     hooks:
       - id: ruff
         args: [--fix-only, --show-fixes]
@@ -86,7 +86,7 @@ repos:
         additional_dependencies: [tomli]
         files: ^(graphblas|docs)/
   - repo: https://github.com/charliermarsh/ruff-pre-commit
-    rev: v0.0.264
+    rev: v0.0.265
     hooks:
       - id: ruff
   - repo: https://github.com/sphinx-contrib/sphinx-lint
diff --git a/MANIFEST.in b/MANIFEST.in
index bdba30a31..27cd3f0c4 100644
--- a/MANIFEST.in
+++ b/MANIFEST.in
@@ -2,6 +2,7 @@ recursive-include graphblas *.py
 prune docs
 prune scripts
 include setup.py
+include conftest.py
 include README.md
 include LICENSE
 include MANIFEST.in
diff --git a/graphblas/tests/conftest.py b/graphblas/tests/conftest.py
index a4df5d336..0d1f4008a 100644
--- a/graphblas/tests/conftest.py
+++ b/graphblas/tests/conftest.py
@@ -18,26 +18,31 @@
 
 def pytest_configure(config):
     rng = np.random.default_rng()
-    randomly = config.getoption("--randomly", False)
+    randomly = config.getoption("--randomly", None)
+    if randomly is None:  # pragma: no cover
+        options_unavailable = True
+        randomly = True
+        config.addinivalue_line("markers", "slow: Skipped unless --runslow passed")
+    else:
+        options_unavailable = False
     backend = config.getoption("--backend", None)
     if backend is None:
         if randomly:
             backend = "suitesparse" if rng.random() < 0.5 else "suitesparse-vanilla"
         else:
             backend = "suitesparse"
-    blocking = config.getoption("--blocking", True)
+    blocking = config.getoption("--blocking", None)
     if blocking is None:  # pragma: no branch
         blocking = rng.random() < 0.5 if randomly else True
     record = config.getoption("--record", False)
     if record is None:  # pragma: no branch
         record = rng.random() < 0.5 if randomly else False
-    mapnumpy = config.getoption("--mapnumpy", False)
+    mapnumpy = config.getoption("--mapnumpy", None)
     if mapnumpy is None:
         mapnumpy = rng.random() < 0.5 if randomly else False
-    runslow = config.getoption("--runslow", False)
+    runslow = config.getoption("--runslow", None)
     if runslow is None:
-        # Add a small amount of randomization to be safer
-        runslow = rng.random() < 0.05 if randomly else False
+        runslow = options_unavailable
     config.runslow = runslow
 
     gb.config.set(autocompute=False, mapnumpy=mapnumpy)
diff --git a/graphblas/tests/test_core.py b/graphblas/tests/test_core.py
index ae2051145..003affc6c 100644
--- a/graphblas/tests/test_core.py
+++ b/graphblas/tests/test_core.py
@@ -83,7 +83,10 @@ def test_packages():
     if not pyproject.exists():  # pragma: no cover (safety)
         pytest.skip("Did not find pyproject.toml")
     with pyproject.open("rb") as f:
-        pkgs2 = sorted(tomli.load(f)["tool"]["setuptools"]["packages"])
+        cfg = tomli.load(f)
+    if cfg.get("project", {}).get("name") != "python-graphblas":  # pragma: no cover (safety)
+        pytest.skip("Did not find correct pyproject.toml")
+    pkgs2 = sorted(cfg["tool"]["setuptools"]["packages"])
     assert (
         pkgs == pkgs2
     ), "If there are extra items on the left, add them to pyproject.toml:tool.setuptools.packages"
diff --git a/graphblas/tests/test_op.py b/graphblas/tests/test_op.py
index c9a176afd..a80012ab7 100644
--- a/graphblas/tests/test_op.py
+++ b/graphblas/tests/test_op.py
@@ -225,7 +225,7 @@ def plus_one(x):
         UnaryOp.register_new("bad", object())
     assert not hasattr(unary, "bad")
     with pytest.raises(UdfParseError, match="Unable to parse function using Numba"):
-        UnaryOp.register_new("bad", lambda x: v)
+        UnaryOp.register_new("bad", lambda x: v)  # pragma: no branch (numba)
 
 
 @pytest.mark.skipif("not supports_udfs")
diff --git a/graphblas/tests/test_vector.py b/graphblas/tests/test_vector.py
index ab019b734..bd2083fd1 100644
--- a/graphblas/tests/test_vector.py
+++ b/graphblas/tests/test_vector.py
@@ -858,7 +858,7 @@ def inner(x, idx, _, thunk):  # pragma: no cover (numba)
     delattr(indexunary, "iin")
     delattr(select, "iin")
     with pytest.raises(UdfParseError, match="Unable to parse function using Numba"):
-        indexunary.register_new("bad", lambda x, row, col, thunk: result)
+        indexunary.register_new("bad", lambda x, row, col, thunk: result)  # pragma: no branch
 
 
 def test_reduce(v):
@@ -2425,7 +2425,7 @@ def test_lambda_udfs(v):
     # with pytest.raises(TypeError):
     v.ewise_add(v, lambda x, y: x + y)  # pragma: no branch (numba)
     with pytest.raises(TypeError):
-        v.inner(v, lambda x, y: x + y)
+        v.inner(v, lambda x, y: x + y)  # pragma: no branch (numba)
 
 
 def test_get(v):