diff --git a/.jjconfig.toml b/.jjconfig.toml
new file mode 100644
index 0000000..521bd0b
--- /dev/null
+++ b/.jjconfig.toml
@@ -0,0 +1,7 @@
+[user]
+name = "Daniel Lundin"
+email = "daniel@arity.se"
+
+[ui]
+default-command = "log"
+diff-editor = "vimdiff"