Disable commit sign off by default

flake.lock

@@ -38,11 +38,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1657296039,
-        "narHash": "sha256-Ghh39+aS+pw5sTP/ZO8VIKE6sBhMadDaQZtf+3yu4Vc=",
+        "lastModified": 1660842467,
+        "narHash": "sha256-lSer61lI5X61/3zjMu4OSUqdKSCW2jM1rU6B3WLBOj4=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "71d7a4c037dc4f3e98d5c4a81b941933cf5bf675",
+        "rev": "9b9f4bb4e1125a2b9734b05a4c35ff388cabec05",
         "type": "github"
       },
       "original": {
@@ -54,11 +54,11 @@
     },
     "nixpkgs-unstable": {
       "locked": {
-        "lastModified": 1657265485,
-        "narHash": "sha256-PUQ9C7mfi0/BnaAUX2R/PIkoNCb/Jtx9EpnhMBNrO/o=",
+        "lastModified": 1660819943,
+        "narHash": "sha256-TRZV/mlW1eYuojqDC3ueYWj7jsTKXJCtyMLNYX/Ybtw=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "b39924fc7764c08ae3b51beef9a3518c414cdb7d",
+        "rev": "8ea014acc33da95ea56c902229957d8225005163",
         "type": "github"
       },
       "original": {

home/git.nix

@@ -17,7 +17,6 @@
 
       advice.detachedHead = false;
       pull.rebase = true;
-      format.signOff = true;
       init.defaultBranch = "canon";
       log.showSignature = true;