diff --git a/.gitignore b/.gitignore
index dc4cd5d..895f7de 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,10 @@
 cabal-dev/*
 dist/*
+cabal.config
+cabal.sandbox.config
+
+stack.yaml
+.stack-work
+
+.idea*
+*.iml
diff --git a/HaskellKoans.cabal b/HaskellKoans.cabal
index 1d7718b..75e97d6 100644
--- a/HaskellKoans.cabal
+++ b/HaskellKoans.cabal
@@ -86,25 +86,3 @@ test-suite koans
 
   -- Extra tools (e.g. alex, hsc2hs, ...) needed to build the source.
   -- Build-tools:
-
-Executable testloop
-  -- .hs or .lhs file containing the Main module.
-  Main-is:
-    TestLoop.hs
-
-  -- Packages needed in order to build this package.
-  Build-depends:
-    base            >= 4.5,
-    attoparsec,
-    containers,
-    HUnit,
-    mtl,
-    hspec,
-    text,
-    testloop
-
-  HS-source-dirs:
-    test
-
-  Default-language:
-    Haskell2010
diff --git a/README.md b/README.md
index ec8a3f0..9b0e465 100644
--- a/README.md
+++ b/README.md
@@ -1,11 +1,13 @@
 ## installation
 
-    $ ./bin/setup-koans
+Make sure stack is installed, then:
+
+    $ stack init
 
 This may take time.
 
 ## run
 
-    $ ./bin/koans
+    $ stack test
 
 This tells you what to do. Modify `test/BasicFunctions.hs`'s `replaceValue`s to let the test passes.
diff --git a/bin/koans b/bin/koans
deleted file mode 100755
index f9b1b8b..0000000
--- a/bin/koans
+++ /dev/null
@@ -1,2 +0,0 @@
-#!/bin/sh
-exec .cabal-sandbox/bin/testloop
diff --git a/bin/setup-koans b/bin/setup-koans
deleted file mode 100755
index 80c04b8..0000000
--- a/bin/setup-koans
+++ /dev/null
@@ -1,25 +0,0 @@
-#!/usr/bin/env runhaskell
-import Control.Monad (unless)
-import qualified System.Process as S
-import qualified System.Exit as S
-
-sh :: String -> IO ()
-sh cmd = do
-  x <- S.system cmd
-  case x of
-       S.ExitFailure _ -> error $ "[ERROR]" ++ cmd ++ " failed."
-       _ -> return ()
-
-cabalSandboxInit :: IO ()
-cabalSandboxInit = do
-  x <- S.system "cabal sandbox init"
-  case x of
-       S.ExitFailure _ -> error $ "[ERROR] initializing sandbox. Please ensure GHC version >= 7.8 and cabal >= 1.18 are installed and try again."
-       _ -> return ()
-
-main :: IO ()
-main = do
-  cabalSandboxInit
-  sh "cabal install --only-dependencies"
-  sh "cabal configure --enable-test"
-  sh "cabal install --reinstall"
diff --git a/test/TestLoop.hs b/test/TestLoop.hs
deleted file mode 100644
index 09a86a6..0000000
--- a/test/TestLoop.hs
+++ /dev/null
@@ -1,6 +0,0 @@
-module Main where
-
-import System.TestLoop (setupTestLoop)
-
-main :: IO ()
-main = setupTestLoop