chore: import upstream snapshot with attribution

.github/validate_universe_json.py

@@ -0,0 +1,19 @@
+import json
+import re
+import sys
+from pathlib import Path
+
+
+def validate_json(document):
+    universe_file = Path(document)
+    with universe_file.open() as f:
+        universe_data = json.load(f)
+        for entry in universe_data["resources"]:
+            if "github" in entry:
+                assert not re.match(
+                    r"^(http:)|^(https:)", entry["github"]
+                ), "Github field should be user/repo, not a url"
+
+
+if __name__ == "__main__":
+    validate_json(str(sys.argv[1]))