diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
new file mode 100644
index 0000000..6ba9060
--- /dev/null
+++ b/.pre-commit-config.yaml
@@ -0,0 +1,8 @@
+repos:
+  - repo: https://github.com/astral-sh/ruff-pre-commit
+    rev: v0.8.4
+    hooks:
+      - id: ruff
+        args: [--fix]
+      - id: ruff-format
+
diff --git a/5-metrics.py b/5-metrics.py
index 25be963..5f9a811 100644
--- a/5-metrics.py
+++ b/5-metrics.py
@@ -186,7 +186,7 @@ def _parse_phenocam_csv(
         return gcc_series, image_list
 
     with csv_path.open() as f:
-        lines = [l for l in f if not l.startswith("#")]
+        lines = [line for line in f if not line.startswith("#")]
 
     reader = csv.DictReader(lines)
     for row in reader:
diff --git a/fix-tile-boundary.py b/fix-tile-boundary.py
index abfc1e1..acf6f8a 100644
--- a/fix-tile-boundary.py
+++ b/fix-tile-boundary.py
@@ -31,7 +31,6 @@ import argparse
 import importlib.util
 import shutil
 import sys
-from collections import Counter
 from pathlib import Path
 
 import rasterio