diff --git a/ChangeLog.md b/ChangeLog.md
new file mode 100644
--- /dev/null
+++ b/ChangeLog.md
@@ -0,0 +1,3 @@
+## 0.8.0
+
+* Drop system-filepath
diff --git a/README.md b/README.md
new file mode 100644
--- /dev/null
+++ b/README.md
@@ -0,0 +1,18 @@
+yesod-fay
+=========
+
+Utilities for using the [Fay](https://github.com/faylang/fay/wiki) Haskell-to-JS compiler with [Yesod](http://www.yesodweb.com).
+
+For an example of a Yesod application with Fay integrated, have a look at the `sample/` directory in this repository, or alternatively use the experimental Postgres-Fay (`pf`) application template (select it when running `yesod init` with recent versions of Yesod).
+
+
+Usage with cabal sandboxes
+--------------------------
+
+You are highly encouraged to create a cabal sandbox for your Yesod app. This feature is available in cabal 1.18+.
+
+Use the following command to set an environment variable (this is a workaround, needed until Fay integrates with [haskell-packages](http://hackage.haskell.org/package/haskell-packages), only possible after cabal 1.20 is released). 
+
+    export HASKELL_PACKAGE_SANDBOX=`echo .cabal-sandbox/*-packages.conf.d/`
+
+Make sure to run this from the root of the Yesod project.
diff --git a/Yesod/Fay.hs b/Yesod/Fay.hs
--- a/Yesod/Fay.hs
+++ b/Yesod/Fay.hs
@@ -102,8 +102,8 @@
 import           Data.Text.Encoding         (encodeUtf8)
 import qualified Data.Text.Lazy.Encoding as TLE
 import           Data.Text.Lazy.Builder     (fromText, toLazyText, Builder)
-import           Filesystem                 (createTree, isFile, readTextFile)
-import           Filesystem.Path.CurrentOS  (directory, encodeString, decodeString)
+import           System.Directory           (createDirectoryIfMissing, doesFileExist)
+import           System.FilePath            (takeDirectory)
 import           Fay                        (getRuntime, showCompileError)
 import           Fay.Convert                (showToFay)
 #if MIN_VERSION_fay(0,20,0)
@@ -226,7 +226,7 @@
     }
 
 updateRuntime :: FilePath -> IO ()
-updateRuntime fp = getRuntime >>= \js -> createTree (directory $ decodeString fp) >> copyFile js fp
+updateRuntime fp = getRuntime >>= \js -> createDirectoryIfMissing True (takeDirectory fp) >> copyFile js fp
 
 instance YesodFay master => YesodSubDispatch FaySite (HandlerT master IO) where
     yesodSubDispatch = $(mkYesodSubDispatch resourcesFaySite)
@@ -257,20 +257,20 @@
           returnJson $ fayEncode master value -- FIXME what should we do for Nothing values?
 
 langYesodFay :: String
-langYesodFay = $(qRunIO $ fmap (LitE . StringL . unpack) $ readTextFile "Fay/Yesod.hs")
+langYesodFay = $(qRunIO $ fmap (LitE . StringL . unpack) $ T.readFile "Fay/Yesod.hs")
 
 writeYesodFay :: IO ()
 writeYesodFay = do
     let fp = "fay/Fay/Yesod.hs"
         content = "-- NOTE: This file is auto-generated.\n" ++ langYesodFay
-    exists <- isFile fp
+    exists <- doesFileExist fp
     mcurrent <-
         if exists
-            then fmap (Just . unpack) $ readTextFile fp
+            then fmap (Just . unpack) $ T.readFile fp
             else return Nothing
     unless (mcurrent == Just content) $ do
-        createTree $ directory fp
-        writeFile (encodeString fp) content
+        createDirectoryIfMissing True $ takeDirectory fp
+        writeFile fp content
 
 maybeRequireJQuery :: YesodFay master => Bool -> WidgetT master IO ()
 maybeRequireJQuery needJQuery = when needJQuery requireJQuery
diff --git a/yesod-fay.cabal b/yesod-fay.cabal
--- a/yesod-fay.cabal
+++ b/yesod-fay.cabal
@@ -1,5 +1,5 @@
 name:                yesod-fay
-version:             0.7.1
+version:             0.8.0
 synopsis:            Utilities for using the Fay Haskell-to-JS compiler with Yesod.
 description:         For initial discussion, see <http://www.yesodweb.com/blog/2012/10/yesod-fay-js>. This is a work-in-progress.
 homepage:            https://github.com/fpco/yesod-fay
@@ -10,6 +10,7 @@
 category:            Web, Yesod
 build-type:          Simple
 cabal-version:       >=1.8
+extra-source-files:  README.md ChangeLog.md
 
 library
   exposed-modules:     Yesod.Fay
@@ -24,8 +25,6 @@
                      , data-default >= 0.4
                      , directory >= 1.1.0.2
                      , text >= 0.11
-                     , system-fileio >= 0.3
-                     , system-filepath >= 0.4
                      , template-haskell
                      , process
                      , shakespeare
@@ -35,3 +34,4 @@
                      , pureMD5 >= 2.1.2.1
                      , utf8-string >= 0.3.7
                      , monad-loops >= 0.3.3.0
+                     , filepath