diff --git a/lib/exsync.ex b/lib/exsync.ex
index 2736b40..c39f633 100644
--- a/lib/exsync.ex
+++ b/lib/exsync.ex
@@ -2,4 +2,13 @@ require Logger
 
 defmodule ExSync do
   defdelegate register_group_leader, to: ExSync.Logger.Server
+
+  @doc """
+  Accepts a MFA and calls the MFA after every code change
+
+  Useful for testing code in a tight feedback loop
+  """
+  def set_reload_callback(module, function, argument) do
+    Application.put_env(:exsync, :reload_callback, {module, function, argument})
+  end
 end