diff --git a/CODE_OF_CONDUCT.md b/CODE_OF_CONDUCT.md
new file mode 100644
index 0000000..342fc86
--- /dev/null
+++ b/CODE_OF_CONDUCT.md
@@ -0,0 +1,7 @@
+# Contributor Covenant Code of Conduct
+
+We could make this complicated, but honestly, just be sensible.
+
+It's a simple program -- and the topic is rather archane and obscure.
+
+If you want to contribute, please do. Who you are is irrelevant. But each person should show courtesy.