diff --git a/pyproject.toml b/pyproject.toml
index d5731b3..87ce5cb 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -15,6 +15,7 @@ dev = [
   "pyright",
   "ruff",
   "typing-extensions",
+  "flake8-pyproject",
 ]
 
 [tool.pyright]
@@ -70,3 +71,16 @@ section-order = [
     "local-folder",
     "typing",
 ]
+
+# ruff doesn't provide all the pycodestyle rules, and pycodestyle is not well
+# supported by some IDEs, so we use flake8 for that
+[tool.flake8]
+max-line-length = 120
+ignore = [
+  "E261",  # At least two spaces before inline comment
+  "E302",  # Expected 2 blank lines, found 0
+  "E305",  # Expected 2 blank lines after end of function or class
+  "W503",  # Line break occurred before a binary operator
+  "F",  # already done by ruff
+]
+exclude=[".git", ".venv"]
diff --git a/requirements/dev.txt b/requirements/dev.txt
index 7b5e635..467f872 100644
--- a/requirements/dev.txt
+++ b/requirements/dev.txt
@@ -5,4 +5,5 @@ flake8
 pyright
 ruff
 typing-extensions
+flake8-pyproject
 -r base.txt
diff --git a/setup.cfg b/setup.cfg
deleted file mode 100644
index a44b04a..0000000
--- a/setup.cfg
+++ /dev/null
@@ -1,4 +0,0 @@
-[flake8]
-max-line-length=120
-ignore=E261,E302,E305,W503,F
-exclude=.git,.venv
diff --git a/uv.lock b/uv.lock
index 07f83b5..544946a 100644
--- a/uv.lock
+++ b/uv.lock
@@ -43,6 +43,17 @@ wheels = [
     { url = "https://files.pythonhosted.org/packages/9f/56/13ab06b4f93ca7cac71078fbe37fcea175d3216f31f85c3168a6bbd0bb9a/flake8-7.3.0-py2.py3-none-any.whl", hash = "sha256:b9696257b9ce8beb888cdbe31cf885c90d31928fe202be0889a7cdafad32f01e", size = 57922, upload-time = "2025-06-20T19:31:34.425Z" },
 ]
 
+[[package]]
+name = "flake8-pyproject"
+version = "1.2.3"
+source = { registry = "https://pypi.org/simple" }
+dependencies = [
+    { name = "flake8" },
+]
+wheels = [
+    { url = "https://files.pythonhosted.org/packages/5f/1d/635e86f9f3a96b7ea9e9f19b5efe17a987e765c39ca496e4a893bb999112/flake8_pyproject-1.2.3-py3-none-any.whl", hash = "sha256:6249fe53545205af5e76837644dc80b4c10037e73a0e5db87ff562d75fb5bd4a", size = 4756, upload-time = "2023-03-21T20:51:38.911Z" },
+]
+
 [[package]]
 name = "icecream"
 version = "2.1.5"
@@ -174,6 +185,7 @@ source = { virtual = "." }
 [package.dev-dependencies]
 dev = [
     { name = "flake8" },
+    { name = "flake8-pyproject" },
     { name = "icecream" },
     { name = "mypy" },
     { name = "pyright" },
@@ -186,6 +198,7 @@ dev = [
 [package.metadata.requires-dev]
 dev = [
     { name = "flake8" },
+    { name = "flake8-pyproject" },
     { name = "icecream" },
     { name = "mypy" },
     { name = "pyright" },