bin/console in usable-1.4.0 vs bin/console in usable-2.0.0

@@ -10,19 +10,22 @@
 # require "pry"
 # Pry.start
 
 module VersionMixin
   def save_version
-    "Saving up to #{self.class.usable_config.max_versions} versions to #{self.class.usable_config.table_name}"
+    "Saving up to #{usables.max_versions} versions to #{usables.table_name}"
   end
 
   def destroy_version
-    "Deleting versions from #{self.class.usable_config.table_name}"
+    "Deleting versions from #{usables.table_name}"
   end
 end
 
 module Mixin
+  extend Usable
+  usables[:max_versions] = 20
+
   def name
     "defined by Mixin"
   end
 
   def from_mixin
@@ -42,29 +45,40 @@
 end
 
 class Model
   extend Usable
 
-  usable VersionMixin, only: :save_version do |config|
-    config.max_versions = 10
-    config.table_name = 'custom_versions'
+  usable VersionMixin, only: :save_version do
+    max_versions 10
+    table_name 'custom_versions'
   end
 
   def save
-    self.class.usable_method(self, :save_version).call
+    usable_method(:save_version).call
   end
 end
 
 module PersistenceOverride
   def save
     'nope'
   end
 end
 
+module Nested
+  module Extension
+    def go
+      'going'
+    end
+  end
+end
+
 class Example
   extend Usable
   usable Mixin
-  usable VersionMixin, max_versions: 10
+  usable VersionMixin do
+    max_versions 10
+  end
+  usable Nested::Extension
 end
 
 Model.usable PersistenceOverride, method: 'prepend'
 
 require "irb"