diff --git a/lib/boot/boot_space.rb b/lib/boot/boot_space.rb
index 86957691..e1f00356 100644
--- a/lib/boot/boot_space.rb
+++ b/lib/boot/boot_space.rb
@@ -1,9 +1,10 @@
-require "boot/boot_class"
+require_relative "boot_class"
 #require "vm/call_site"
 require "kernel/all"
-require "boot/object"
-require "boot/string"
-require "trickle/send"
+require_relative "object"
+require_relative "string"
+require "virtual/send_implementation"
+
 module Boot
   # The BootSpace contains all objects for a program. In functional terms it is a program, but in oo
   # it is a collection of objects, some of which are data, some classes, some functions
@@ -25,9 +26,9 @@ module Boot
       #global objects (data)
       @objects = []
       boot_classes
-      @passes = [ Trickle::Send ]
+      @passes = [ Virtual::SendImplementation ]
     end
-    attr_reader :context , :main , :classes , :entry , :exit
+    attr_reader  :main , :classes , :objects
 
     def run_passes
       @passes.each do |pass|
@@ -41,6 +42,26 @@ module Boot
       end
     end
 
+    # Passes are initiated empty and added to by anyone who want (basically)
+    # Even linking and assembly are passes and so there are quite a few system passes neccesary to result in a 
+    # working binary. Other than that, this is intentionally quite flexible
+    
+    def add_pass_after( pass , after)
+      index = @passes.index(after)
+      raise "No such pass to add after: #{after}" unless index
+      @passes.insert(index+1 , pass)
+    end
+    def add_pass_before( pass , after)
+      index = @passes.index(after)
+      raise "No such pass to add after: #{after}" unless index
+      @passes.insert(index , pass)
+    end
+
+    def add_pass_after( pass , after)
+      index = @passes.index(after)
+      raise "No such pass to add after: #{after}" unless index
+      @passes.insert(index , pass)
+    end
     # boot the classes, ie create a minimal set of classes with a minimal set of functions
     # minimal means only that which can not be coded in ruby
     # MethodDefinitions are grabbed from respective modules by sending the method name. This should return the 
diff --git a/lib/trickle/send.rb b/lib/virtual/send_implementation.rb
similarity index 71%
rename from lib/trickle/send.rb
rename to lib/virtual/send_implementation.rb
index 25521726..124e19d5 100644
--- a/lib/trickle/send.rb
+++ b/lib/virtual/send_implementation.rb
@@ -1,22 +1,22 @@
-module Trickle
+module Virtual
   # This implements the send logic
   # Send is so complicated that we actually code it in ruby and stick it in
   # That off course opens up an endless loop possibility that we stop by reducing to Class and Module methods
-  class Send
+  class SendImplementation
     def run block
       block.codes.dup.each do |code|
-        next unless code.is_a? Virtual::MessageSend
+        next unless code.is_a? MessageSend
         me = code.me
-        next unless ( me.type == Virtual::Reference)
-        if( me.is_a? Virtual::Constant)
+        next unless ( me.type == Reference)
+        if( me.is_a? Constant)
           Boot::BootClass
           if( me.is_a? Boot::BootClass )
             raise "unimplemented"
-          elsif( me.is_a? Virtual::ObjectConstant )
+          elsif( me.is_a? ObjectConstant )
             clazz = me.clazz
             method = clazz.get_method_definition code.name
             raise "Method not implemented #{clazz.name}.#{code.name}" unless method
-            call = Virtual::FunctionCall.new( method )
+            call = FunctionCall.new( method )
             block.replace(code , [call] )
           else
             raise "unimplemented"