diff --git a/flake.lock b/flake.lock
index f0d4c0f..cfaf59a 100644
--- a/flake.lock
+++ b/flake.lock
@@ -23,11 +23,11 @@
     },
     "nix-flatpak": {
       "locked": {
-        "lastModified": 1789296110,
-        "narHash": "sha256-8wVBx1J5hR1DzUyzlrm2DkMXx7RJbATh3+R+qBBILlI=",
+        "lastModified": 1789496567,
+        "narHash": "sha256-f9ze1ph2u0lk/Hm7/w/OvC0ESL1z0LbQ5UDgcOwQzLM=",
         "owner": "gmodena",
         "repo": "nix-flatpak",
-        "rev": "0f392e302963bce69787c495aa95ef1d50dda889",
+        "rev": "07e8980c2fe421c93c0749f6246db34422827f67",
         "type": "github"
       },
       "original": {
@@ -38,11 +38,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1789344334,
-        "narHash": "sha256-vdhpDJ3Lr24lkZ+fDCjmBRRtw9/vcSzkqGJOJyF5h2U=",
+        "lastModified": 1789998861,
+        "narHash": "sha256-62XMQD4WLdMAfdT0/8gJmPH2dKeTw908ryNloAplTr8=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "c3eea5b2156db11c7eeeada3dc737711255b253e",
+        "rev": "1e8bc658fc985ef27ccd66d107d767b32bb7ef98",
         "type": "github"
       },
       "original": {
@@ -54,11 +54,11 @@
     },
     "nixpkgs-unstable": {
       "locked": {
-        "lastModified": 1789264731,
-        "narHash": "sha256-llGJbC0CcU8DfROr6mZjRJgMLQd/SKwfpzxJH/2lHO4=",
+        "lastModified": 1789994327,
+        "narHash": "sha256-2EAysR68bR+V5O63LuZWFvhK55sYGLzXWi4uEiEHjKw=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "02f5696b0e6097e589076d886b317b83ff0437d7",
+        "rev": "3396d0584677afd0e6ce20ac2474eab0adf0fb2b",
         "type": "github"
       },
       "original": {
diff --git a/hosts/work/default.nix b/hosts/work/default.nix
index b61d290..f94b748 100644
--- a/hosts/work/default.nix
+++ b/hosts/work/default.nix
@@ -30,6 +30,7 @@
     ../../modules/bubblewrap.nix
     ../../modules/socat.nix
     ../../modules/cursor-cli.nix
+    ../../modules/git-churn.nix
   ];
 
   boot.kernelPackages = pkgs.linuxPackages_latest;
diff --git a/modules/git-churn.nix b/modules/git-churn.nix
new file mode 100644
index 0000000..d79282e
--- /dev/null
+++ b/modules/git-churn.nix
@@ -0,0 +1,23 @@
+{ pkgs, ... }:
+
+{
+  environment.systemPackages = [
+    (pkgs.writeShellApplication {
+      name = "git-churn";
+
+      runtimeInputs = with pkgs; [
+        git
+        coreutils
+        gnugrep
+      ];
+
+      text = ''
+        git log -M -C --name-only --format='format:' "$@" |
+          sort |
+          grep -v '^$' |
+          uniq -c |
+          sort -n
+      '';
+    })
+  ];
+}