diff --git a/internal/server/notimpl.go b/internal/server/notimpl.go
new file mode 100644
index 0000000..bfce046
--- /dev/null
+++ b/internal/server/notimpl.go
@@ -0,0 +1,7 @@
+package server
+
+import "net/http"
+
+func NotImplemented(w http.ResponseWriter) {
+	http.Error(w, "Not implemented", http.StatusNotImplemented)
+}