diff --git a/go.mod b/go.mod
new file mode 100644
index 0000000..8e6acee
--- /dev/null
+++ b/go.mod
@@ -0,0 +1,3 @@
+module git.bivouac.wiki/ornithopter/arrears
+
+go 1.22.5
diff --git a/referral.go b/referral.go
new file mode 100644
index 0000000..34769d9
--- /dev/null
+++ b/referral.go
@@ -0,0 +1 @@
+package arrears