diff --git a/lua/SpecSwitcher/init.lua b/lua/SpecSwitcher/init.lua
new file mode 100644
index 0000000..8ea1713
--- /dev/null
+++ b/lua/SpecSwitcher/init.lua
@@ -0,0 +1,25 @@
+local M = {}
+
+local Config = {
+    test = "hallo"
+}
+
+function open(filename)
+    vim.cmd("e " .. filename)
+end
+
+function M.setup(opts)
+    opts = opts or {}
+
+    for k,v in pairs(opts) do
+        Config[k] = v
+    end
+
+    local mapping = require("ExtensionMap"):new()
+
+    mapping:add("c", {"h", "H", "hh", "HH"})
+
+    mapping:print()
+end
+
+return M