diff --git a/gcl.go b/gcl.go
new file mode 100644
index 0000000..0addbc4
--- /dev/null
+++ b/gcl.go
@@ -0,0 +1 @@
+package gcl
diff --git a/go.mod b/go.mod
new file mode 100644
index 0000000..f2f90d2
--- /dev/null
+++ b/go.mod
@@ -0,0 +1,3 @@
+module gcl
+
+go 1.20