diff --git a/flake.nix b/flake.nix
index c0ecfb2..66c0029 100644
--- a/flake.nix
+++ b/flake.nix
@@ -49,6 +49,10 @@
             # NOTE: disable to reduce deps
             actionlint = enable_on_commit;
             yamlfmt = enable_on_commit;
+            convco = {
+              enable = true;
+              stages = ["manual" "pre-commit"];
+            };
             deadnix.enable = true;
 
             dialyzer = {