diff --git a/new-interface-sketch.js b/new-interface-sketch.js
new file mode 100644
index 0000000..4f047bb
--- /dev/null
+++ b/new-interface-sketch.js
@@ -0,0 +1,21 @@
+/*
+const opter = function (argv) {
+  return new Opter(argv);
+}
+*/
+
+const cfgExample = {
+  synonyms: [['-d', '--debug']],
+  requiredOptions: ['-i', '-o'],
+  requiredArguments: { '-i': {min: 1, max: 1, tooFew: '', tooMany: ''}, }
+}
+
+class Opter {
+  constructor(argv, cfg) {
+    // this.opts = ...
+  }
+
+  contains() {
+
+  }
+}
\ No newline at end of file