diff --git a/Makefile b/Makefile
index fa93d6e..80f6f1f 100644
--- a/Makefile
+++ b/Makefile
@@ -8,19 +8,7 @@ bin/tailwindcss:
 # Create seed files for SQLMesh staging models that require at least one landing file.
 # Run once after a fresh clone (data/ is gitignored so seeds are not in git).
 init-landing-seeds:
-	@python3 -c "
-import gzip, json, os, pathlib
-seed = {'date':'1970-01-01','captured_at_utc':'1970-01-01T00:00:00Z','venue_count':0,'venues_errored':0,'venues':[]}
-morning = pathlib.Path('data/landing/playtomic/1970/01/availability_1970-01-01.json.gz')
-recheck = pathlib.Path('data/landing/playtomic/1970/01/availability_1970-01-01_recheck_00.json.gz')
-morning.parent.mkdir(parents=True, exist_ok=True)
-for p in [morning, recheck]:
-    if not p.exists():
-        with gzip.open(p, 'wt') as f: json.dump(seed, f)
-        print('created', p)
-    else:
-        print('exists ', p)
-"
+	@python3 web/scripts/init_landing_seeds.py
 
 css-build: bin/tailwindcss
 	$(TAILWIND) -i web/src/padelnomics/static/css/input.css -o web/src/padelnomics/static/css/output.css --minify
diff --git a/web/scripts/init_landing_seeds.py b/web/scripts/init_landing_seeds.py
new file mode 100644
index 0000000..aeca9dd
--- /dev/null
+++ b/web/scripts/init_landing_seeds.py
@@ -0,0 +1,22 @@
+"""Create minimal seed files for SQLMesh staging models that require landing data."""
+import gzip
+import json
+from pathlib import Path
+
+seed = {
+    "date": "1970-01-01",
+    "captured_at_utc": "1970-01-01T00:00:00Z",
+    "venue_count": 0,
+    "venues_errored": 0,
+    "venues": [],
+}
+morning = Path("data/landing/playtomic/1970/01/availability_1970-01-01.json.gz")
+recheck = Path("data/landing/playtomic/1970/01/availability_1970-01-01_recheck_00.json.gz")
+morning.parent.mkdir(parents=True, exist_ok=True)
+for p in [morning, recheck]:
+    if not p.exists():
+        with gzip.open(p, "wt") as f:
+            json.dump(seed, f)
+        print("created", p)
+    else:
+        print("exists ", p)