diff --git a/.github/workflows/ruff.yaml b/.github/workflows/ruff.yaml
new file mode 100644
index 0000000..ec6753a
--- /dev/null
+++ b/.github/workflows/ruff.yaml
@@ -0,0 +1,14 @@
+name: Ruff
+on: [push, pull_request]
+jobs:
+  ruff:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: astral-sh/ruff-action@v1
+        with:
+          src: "./entropix"
+          args: "format --check"
+      - uses: astral-sh/ruff-action@v1
+        with:
+          args: "check entropix --diff"
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
new file mode 100644
index 0000000..9755b95
--- /dev/null
+++ b/.pre-commit-config.yaml
@@ -0,0 +1,9 @@
+repos:
+- repo: https://github.com/astral-sh/ruff-pre-commit
+  # Ruff version.
+  rev: v0.6.2
+  hooks:
+    # Run the linter.
+    - id: ruff
+    # Run the formatter.
+    - id: ruff-format
diff --git a/pyproject.toml b/pyproject.toml
index cadd006..e4a83d4 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,3 +1,6 @@
+[project]
+requires-python = ">=3.11"
+
 [tool.poetry]
 name = "entropix"
 version = "0.1.0"
@@ -42,7 +45,11 @@ build-backend = "poetry.core.masonry.api"
 
 [tool.ruff]
 extend-exclude = ["tests/**"]
-lint.select = [
+line-length = 100
+indent-width = 2
+
+[tool.ruff.lint]
+select = [
   # pycodestyle
   "E",
   # Pyflakes
@@ -58,9 +65,7 @@ lint.select = [
   # Ruff
   "RUF",
 ]
-lint.ignore = [
+ignore = [
   "E501",   # ignore line-length (e.g. long docstring)
   "SIM117", # ignore combine with statements (it leads to harder to read code)
 ]
-line-length = 88
-indent-width = 2