diff --git a/.github/workflows/all_push.yml b/.github/workflows/all_push.yml
index a1ec458..e37c887 100644
--- a/.github/workflows/all_push.yml
+++ b/.github/workflows/all_push.yml
@@ -34,7 +34,6 @@ jobs:
           OMP_NUM_THREADS: 2
           CPP_TEST_DIR: build/fast_pauli/cpp/tests
         run: |
-          du ${CPP_TEST_DIR}/test_pauli_op
           # ctest --test-dir build --verbose # TODO not using bc of PauliOp problems on CI
           ./${CPP_TEST_DIR}/test_factory
           ./${CPP_TEST_DIR}/test_pauli
diff --git a/Makefile b/Makefile
index 9c355c6..8bc3d04 100644
--- a/Makefile
+++ b/Makefile
@@ -19,17 +19,6 @@ tests:
 clean:
 	rm -rf build dist
 
-docs-build:
-	cd docs && \
-	python -m sphinx -T -W --keep-going -b html -d _build/doctrees -D language=en . ./html
-
-livehtml:
-	sphinx-autobuild docs docs/_build/html
-
-.PHONY: clean-docs
-clean-docs:
-	rm -rf docs/html docs/_build
-
 lint-check:
 	ruff check ./fast_pauli/py ./tests && \
 	mypy ./fast_pauli/py ./tests
@@ -38,4 +27,4 @@ lint-fix:
 	ruff check --fix ./fast_pauli/py ./tests
 
 lint-write:
-	ruff format ./fast_pauli/py ./tests
\ No newline at end of file
+	ruff format ./fast_pauli/py ./tests
diff --git a/fast_pauli/py/pypauli/operations.py b/fast_pauli/py/pypauli/operations.py
index bec1c44..bc97728 100644
--- a/fast_pauli/py/pypauli/operations.py
+++ b/fast_pauli/py/pypauli/operations.py
@@ -37,7 +37,7 @@ def multiply(self, state: np.ndarray) -> np.ndarray:
         ----
             state: The input state as a numpy array.
 
-        Returns:
+        Returns
         -------
             The result of multiplying the Pauli string with the state.
 
@@ -61,7 +61,7 @@ def compose_sparse_pauli(string: str) -> tuple[np.ndarray, np.ndarray]:
         string: The input string representing the Pauli string.
         Must contain only I, X, Y, Z characters.
 
-    Returns:
+    Returns
     -------
         A tuple containing the column numbers and values of the sparse matrix.
 
@@ -120,7 +120,7 @@ def compose_sparse_diag_pauli(string) -> np.ndarray:
     ----
         string: A Pauli string containing only 'I' and 'Z' characters.
 
-    Returns:
+    Returns
     -------
         np.ndarray: diagonal values from resulting sparse matrix.
 
diff --git a/pyproject.toml b/pyproject.toml
index b02dbca..2a71fe7 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -109,7 +109,22 @@ target-version="py38"
 # D - pydocstyle (https://docs.astral.sh/ruff/rules/#pydocstyle-d)
 # YTT - flake8-2020 (https://docs.astral.sh/ruff/rules/#flake8-2020-ytt)
 # ASYNC flake8-async (https://docs.astral.sh/ruff/rules/#flake8-async-async)
+# B flake8-bugbear (https://docs.astral.sh/ruff/rules/#flake8-bugbear-b)
+# UP flake8-bandit (https://docs.astral.sh/ruff/rules/#flake8-bandit-up)
+# SIM flake8-simplify (https://docs.astral.sh/ruff/rules/#flake8-simplify-sim)
 
-select = ["F", "E", "W", "I", "N", "D", "YTT", "ASYNC"]
+select = ["F", "E", "W", "I", "N", "D", "YTT", "ASYNC", "B", "UP", "SIM"]
 
-ignore = []
+ignore = [
+  # Allow non-lowercase variable names to help the code match the math better
+  "N806",
+  # mypy doesn't support PEP695 (upgrading to `type` python keyword)
+  "UP040",
+]
+
+[tool.ruff.lint.pydocstyle]
+convention = "numpy"
+
+[tool.ruff.format]
+quote-style = "double"
+docstring-code-format = true