diff --git a/.github/workflows/update.yaml b/.github/workflows/update.yaml
index 6948e13e..ce115d56 100644
--- a/.github/workflows/update.yaml
+++ b/.github/workflows/update.yaml
@@ -2,7 +2,7 @@
 name: "Update lock file"
 on:
   schedule:
-    - cron: "0 */6 * * *"
+    - cron: "0 6 * * *"
   workflow_dispatch:
 jobs:
   tests:
diff --git a/README.md b/README.md
new file mode 100644
index 00000000..ba2af1a4
--- /dev/null
+++ b/README.md
@@ -0,0 +1,4 @@
+# my nixos/nix-darwin configs
+
+
+### 2022-04-12 repository layout was changed completely, the old layout is in https://github.com/thexyno/nixos-config/tree/oldmain
diff --git a/lefthook.yml b/lefthook.yml
new file mode 100644
index 00000000..8a43e404
--- /dev/null
+++ b/lefthook.yml
@@ -0,0 +1,6 @@
+pre-commit:
+  parallel: false
+  commands:
+    01_nixfmt:
+      glob: "*.nix"
+      run: nixpkgs-fmt {staged_files} && git add {staged_files}