diff --git a/flake.nix b/flake.nix
index 99a1353..ca24efe 100644
--- a/flake.nix
+++ b/flake.nix
@@ -59,7 +59,7 @@
           }
         );
       in
-        lib.recursiveUpdate flake rec {
+        lib.recursiveUpdate (removeAttrs flake ["checks"]) rec {
           project = cabalProject;
           # add a required job, that's basically all hydraJobs.
           hydraJobs = flake.hydraJobs
@@ -67,15 +67,26 @@
                   # This ensure hydra send a status for the required job (even if no change other than commit hash)
                   revision = nixpkgs.writeText "revision" (inputs.self.rev or "dirty");
                 };
+          checks = let
+            # https://github.com/numtide/flake-utils/issues/121#issuecomment-2589899217
+            recurseIntoDeepAttrs = attrs:
+              lib.recurseIntoAttrs (lib.mapAttrs (_: v:
+                if builtins.typeOf v == "set" && !lib.isDerivation v
+                then recurseIntoDeepAttrs v
+                else v
+              ) attrs);
+          in inputs.flake-utils.lib.flattenTree (recurseIntoDeepAttrs flake.hydraJobs);
         }
     );
 
   nixConfig = {
     extra-substituters = [
       "https://cache.iog.io"
+      "https://cache.garnix.io"
     ];
     extra-trusted-public-keys = [
       "hydra.iohk.io:f/Ea+s+dFdN+3Y/G+FDgSq+a5NEWhJGzdjvKNGv0/EQ="
+      "cache.garnix.io:CTFPyKSLcx5RMJKfLo5EEPUObbA78b0YQ2DTCJXqr9g="
     ];
     allow-import-from-derivation = true;
   };
diff --git a/garnix.yaml b/garnix.yaml
new file mode 100644
index 0000000..da969a1
--- /dev/null
+++ b/garnix.yaml
@@ -0,0 +1,3 @@
+builds:
+  include:
+  - 'checks.*.*'