diff --git a/gitconfig.template b/gitconfig.template
index dd1b81c..f1d5901 100644
--- a/gitconfig.template
+++ b/gitconfig.template
@@ -2,6 +2,16 @@
   name = ${GIT_NAME}
   email = ${GIT_EMAIL}
 
+[diff]
+    tool = nvimdiff
+
+[difftool]
+    prompt = false    # don’t ask “launch nvim?” each time
+
+[difftool "nvimdiff"]
+    cmd = nvim -d "$LOCAL" "$REMOTE"
+    trustExitCode = true
+
 [alias]
   co = checkout
   st = status