diff --git a/Nemesis b/Nemesis
new file mode 100644
--- /dev/null
+++ b/Nemesis
@@ -0,0 +1,26 @@
+nemesis = do
+  
+  clean
+    [ "**/*.hi"
+    , "**/*.o"
+    , "manifest"
+    ]
+    
+  desc "prepare cabal dist"
+  task "dist" $ do
+    sh "cabal clean"
+    sh "cabal configure"
+    sh "cabal sdist"
+
+  desc "start console"
+  task "i" (sh "ghci -isrc src/Web/HCheat.hs")
+  
+  task "b" $ do
+    sh "cabal clean"
+    sh "cabal configure"
+    sh "cabal build"
+
+  
+  desc "put all .hs files in manifest"
+  task "manifest" $ do
+    sh "find . | grep 'hs$' > manifest"
diff --git a/Rakefile b/Rakefile
deleted file mode 100644
--- a/Rakefile
+++ /dev/null
@@ -1,17 +0,0 @@
-require 'rake'
-require 'rake/clean'
-
-task :default => :stats
-
-Dir['tasks/**/*.rake'].each { |rake| load rake }
-
-CLEAN.include %w[
-  **/*.o
-  **/*.hi
-  manifest
-]
-
-desc "console"
-task :console do
-  sh 'cd src; ghci HCheat.hs'
-end
diff --git a/changelog.markdown b/changelog.markdown
deleted file mode 100644
--- a/changelog.markdown
+++ /dev/null
@@ -1,33 +0,0 @@
-2009.5.13
----------
-
-### Feature
-
-* use here doc for simplicity
-
-2009.4.20
----------
-
-### Feature
-
-* Add rzg ( lorem like text in Chinese, a poet from ancient China )
-
-
-2008.11.25
------------
-
-### Update analytics code
-
-2008.11.14
-----------
-
-### Feature
-
-* lorem
-
-2008.11.6
----------
-
-### Feature
-
-* analytics
diff --git a/changelog.md b/changelog.md
new file mode 100644
--- /dev/null
+++ b/changelog.md
@@ -0,0 +1,40 @@
+2009.6.25
+---------
+
+### Feature
+
+* Only use MPS.TH
+
+2009.5.13
+---------
+
+### Feature
+
+* use here doc for simplicity
+
+2009.4.20
+---------
+
+### Feature
+
+* Add rzg ( lorem like text in Chinese, a poet from ancient China )
+
+
+2008.11.25
+-----------
+
+### Update analytics code
+
+2008.11.14
+----------
+
+### Feature
+
+* lorem
+
+2008.11.6
+---------
+
+### Feature
+
+* analytics
diff --git a/hcheat.cabal b/hcheat.cabal
--- a/hcheat.cabal
+++ b/hcheat.cabal
@@ -1,5 +1,5 @@
 Name:                 hcheat
-Version:              2009.5.13
+Version:              2009.6.25
 Build-type:           Simple
 Synopsis:             A collection of code cheatsheet
 Description:          Starting with Google Analytics
@@ -11,11 +11,11 @@
 Cabal-version:        >= 1.2
 category:             Web
 homepage:             http://github.com/nfjinjing/hcheat/
-data-files:           readme.markdown, changelog.markdown, Rakefile, tasks/haskell.rake
+data-files:           readme.md, changelog.md, Nemesis
 
 library
   ghc-options: -Wall -fno-warn-missing-signatures -fno-warn-name-shadowing -fno-warn-orphans -fno-warn-type-defaults
-  build-depends: base, mps >= 2009.5.13
+  build-depends: base >= 4 && < 5, mps >= 2009.6.25
   hs-source-dirs: src/
   exposed-modules:  
                     Web.HCheat
diff --git a/readme.markdown b/readme.markdown
deleted file mode 100644
--- a/readme.markdown
+++ /dev/null
@@ -1,1 +0,0 @@
-A collection of web snippets
diff --git a/readme.md b/readme.md
new file mode 100644
--- /dev/null
+++ b/readme.md
@@ -0,0 +1,1 @@
+A collection of web snippets
diff --git a/src/Web/HCheat.hs b/src/Web/HCheat.hs
--- a/src/Web/HCheat.hs
+++ b/src/Web/HCheat.hs
@@ -3,11 +3,10 @@
 module Web.HCheat where
   
 import Prelude hiding ((.))
-import MPS
+import MPS.TH
 
 -- google analytics
 analytics x = [$here|
-
 <script type="text/javascript">
   var gaJsHost = (("https:" == document.location.protocol) ? "https://ssl." : "http://www.");
   document.write(unescape("%3Cscript src='" + gaJsHost + "google-analytics.com/ga.js' type='text/javascript'%3E%3C/script%3E"));
@@ -19,14 +18,11 @@
     pageTracker._trackPageview();
   } catch(err) {}
 </script>
-
 |]
 
 lorem = "Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum."
 
 rzg = [$here|
-
 夜来风雨损余芳。数片衰红落槛傍。媚景背人容易去，半轩飞絮日空长。
 从来不信相思切，及至如今倍感伤。独立黄昏绣帘外，可堪新月露圆光。
-
-|].strip
+|]
diff --git a/tasks/haskell.rake b/tasks/haskell.rake
deleted file mode 100644
--- a/tasks/haskell.rake
+++ /dev/null
@@ -1,17 +0,0 @@
-desc "manifest"
-task :ma do
-  sh 'find . | grep "hs$" > manifest'
-end
-
-desc "build"
-task :build do
-  sh 'cabal clean; cabal configure; cabal build'
-end
-
-
-desc "dist"
-task :dist do
-  sh 'cabal clean'
-  sh 'cabal configure'
-  sh 'cabal sdist'
-end