Default config = language in most cases

app.py

@@ -71,7 +71,7 @@ def parse_metrics_rows(meta):
             lang = meta["language"]
             lang = lang[0] if isinstance(lang, list) else lang
         lang = aliases_lang[lang] if lang in aliases_lang else lang
-        config = result["dataset"]["config"] if "config" in result["dataset"] else None
+        config = result["dataset"]["config"] if "config" in result["dataset"] else lang
         split = result["dataset"]["split"] if "split" in result["dataset"] else None
         row = {
             "dataset": dataset,