diff --git a/pkgs/by-name/gi/gitSetupHook/gitSetupHook.sh b/pkgs/by-name/gi/gitSetupHook/gitSetupHook.sh
new file mode 100644
index 000000000000..92f56afd4970
--- /dev/null
+++ b/pkgs/by-name/gi/gitSetupHook/gitSetupHook.sh
@@ -0,0 +1,10 @@
+# shellcheck shell=bash
+
+gitSetup () {
+    GIT_CONFIG_GLOBAL=$(mktemp -t gitconfig.XXXXXX)
+    export GIT_CONFIG_GLOBAL
+    @gitMinimal@ config --global user.name GitSetupHook
+    @gitMinimal@ config --global user.email GitSetupHook@nixpkgs.invalid
+}
+
+postHooks+=(gitSetup)
diff --git a/pkgs/by-name/gi/gitSetupHook/package.nix b/pkgs/by-name/gi/gitSetupHook/package.nix
new file mode 100644
index 000000000000..b03b6490366d
--- /dev/null
+++ b/pkgs/by-name/gi/gitSetupHook/package.nix
@@ -0,0 +1,14 @@
+{
+  lib,
+  gitMinimal,
+  makeSetupHook,
+}:
+
+makeSetupHook {
+  name = "gitSetupHook";
+
+  substitutions = {
+    gitMinimal = lib.getExe gitMinimal;
+  };
+
+} ./gitSetupHook.sh