diff --git a/CHANGELOG.md b/CHANGELOG.md
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+++ b/CHANGELOG.md
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+# v0.0.0.0
+
+Initial release.
diff --git a/LICENSE b/LICENSE
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--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,29 @@
+BSD 3-Clause License
+
+Copyright (c) 2019, Rob Rix
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+* Redistributions of source code must retain the above copyright notice, this
+  list of conditions and the following disclaimer.
+
+* Redistributions in binary form must reproduce the above copyright notice,
+  this list of conditions and the following disclaimer in the documentation
+  and/or other materials provided with the distribution.
+
+* Neither the name of the copyright holder nor the names of its
+  contributors may be used to endorse or promote products derived from
+  this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
diff --git a/Setup.hs b/Setup.hs
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+++ b/Setup.hs
@@ -0,0 +1,2 @@
+import Distribution.Simple
+main = defaultMain
diff --git a/fused-effects-readline.cabal b/fused-effects-readline.cabal
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--- /dev/null
+++ b/fused-effects-readline.cabal
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+cabal-version:       2.2
+
+name:                fused-effects-readline
+version:             0.0.0.0
+synopsis:            A readline-like effect and carrier for fused-effects
+description:         A readline-like effect and carrier for fused-effects, using haskeline under the hood
+homepage:            https://github.com/fused-effects/fused-effects-readline
+bug-reports:         https://github.com/fused-effects/fused-effects-readline/issues
+license:             BSD-3-Clause
+license-file:        LICENSE
+author:              Rob Rix
+maintainer:          rob.rix@me.com
+copyright:           2019 Rob Rix
+category:            Development
+extra-source-files:
+  CHANGELOG.md
+
+common common
+  default-language: Haskell2010
+  ghc-options:
+    -Weverything
+    -Wno-all-missed-specialisations
+    -Wno-implicit-prelude
+    -Wno-missed-specialisations
+    -Wno-missing-import-lists
+    -Wno-missing-local-signatures
+    -Wno-monomorphism-restriction
+    -Wno-name-shadowing
+    -Wno-safe
+    -Wno-unsafe
+  if (impl(ghc >= 8.6))
+    ghc-options: -Wno-star-is-type
+  if (impl(ghc >= 8.8))
+    ghc-options: -Wno-missing-deriving-strategies
+
+library
+  import: common
+  hs-source-dirs:      src
+  exposed-modules:
+    Control.Carrier.Readline.Haskeline
+    Control.Effect.Readline
+  build-depends:
+      base >= 4.12 && < 5
+    , directory ^>= 1.3.3.2
+    , filepath ^>= 1.4.2.1
+    , fused-effects ^>= 1
+    , haskeline ^>= 0.7
+    , prettyprinter ^>= 1.5
+    , prettyprinter-ansi-terminal ^>= 1.1
+    , terminal-size ^>= 0.3
+    , transformers >= 0.4 && < 0.6
+
+test-suite test
+  import: common
+  type:           exitcode-stdio-1.0
+  hs-source-dirs: test
+  main-is:        Test.hs
+  build-depends:
+      base
+    , fused-effects-readline
+
+
+source-repository head
+  type:     git
+  location: https://github.com/fused-effects/fused-effects-readline
diff --git a/src/Control/Carrier/Readline/Haskeline.hs b/src/Control/Carrier/Readline/Haskeline.hs
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--- /dev/null
+++ b/src/Control/Carrier/Readline/Haskeline.hs
@@ -0,0 +1,69 @@
+{-# LANGUAGE GeneralizedNewtypeDeriving, LambdaCase, MultiParamTypeClasses, ScopedTypeVariables, TypeApplications #-}
+module Control.Carrier.Readline.Haskeline
+( -- * Readline carrier
+  runReadline
+, runReadlineWithHistory
+, ReadlineC(ReadlineC)
+  -- * Readline effect
+, module Control.Effect.Readline
+) where
+
+import Control.Algebra
+import Control.Carrier.Lift
+import Control.Carrier.Reader
+import Control.Effect.Readline
+import Control.Monad.Fix (MonadFix)
+import Control.Monad.IO.Class (MonadIO(..))
+import Control.Monad.Trans.Class (MonadTrans(..))
+import Data.Coerce (coerce)
+import Data.Text.Prettyprint.Doc
+import Data.Text.Prettyprint.Doc.Render.Terminal
+import System.Console.Haskeline
+import System.Console.Terminal.Size as Size
+import System.Directory
+import System.Environment
+import System.FilePath
+import System.IO (stdout)
+
+runReadline :: MonadException m => Prefs -> Settings m -> ReadlineC m a -> m a
+runReadline prefs settings (ReadlineC m) = runInputTWithPrefs prefs (coerce settings) (runM (runReader (Line 0) m))
+
+runReadlineWithHistory :: MonadException m => ReadlineC m a -> m a
+runReadlineWithHistory block = do
+  homeDir <- liftIO getHomeDirectory
+  prefs   <- liftIO $ readPrefs (homeDir </> ".haskeline")
+  prog    <- liftIO getExecutablePath
+  let settingsDir = homeDir </> ".local" </> dropExtension (takeFileName prog)
+      settings = Settings
+        { complete = noCompletion
+        , historyFile = Just (settingsDir </> "repl_history")
+        , autoAddHistory = True
+        }
+  liftIO $ createDirectoryIfMissing True settingsDir
+
+  runReadline prefs settings block
+
+newtype ReadlineC m a = ReadlineC { runReadlineC :: ReaderC Line (LiftC (InputT m)) a }
+  deriving (Applicative, Functor, Monad, MonadFix, MonadIO)
+
+instance MonadTrans ReadlineC where
+  lift = ReadlineC . lift . lift . lift
+
+instance MonadException m => Algebra Readline (ReadlineC m) where
+  alg = \case
+    Prompt prompt k -> ReadlineC $ do
+      str <- sendM (getInputLine @m (cyan <> prompt <> plain))
+      Line line <- ask
+      local increment (runReadlineC (k line str))
+      where cyan = "\ESC[1;36m\STX"
+            plain = "\ESC[0m\STX"
+    Print doc k -> do
+      s <- maybe 80 Size.width <$> liftIO size
+      liftIO (renderIO stdout (layoutSmart defaultLayoutOptions { layoutPageWidth = AvailablePerLine s 0.8 } (doc <> line)))
+      k
+
+
+newtype Line = Line Int
+
+increment :: Line -> Line
+increment (Line n) = Line (n + 1)
diff --git a/src/Control/Effect/Readline.hs b/src/Control/Effect/Readline.hs
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--- /dev/null
+++ b/src/Control/Effect/Readline.hs
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+{-# LANGUAGE DeriveFunctor, DeriveGeneric #-}
+module Control.Effect.Readline
+( -- * Readline effect
+  Readline(..)
+, prompt
+, print
+  -- * Re-exports
+, Algebra
+, Has
+, run
+) where
+
+import Control.Algebra
+import Data.Text.Prettyprint.Doc (Doc)
+import Data.Text.Prettyprint.Doc.Render.Terminal (AnsiStyle)
+import GHC.Generics (Generic1)
+import Prelude hiding (print)
+
+prompt :: Has Readline sig m => String -> m (Int, Maybe String)
+prompt p = send (Prompt p (curry pure))
+
+print :: Has Readline sig m => Doc AnsiStyle -> m ()
+print s = send (Print s (pure ()))
+
+
+data Readline m k
+  = Prompt String (Int -> Maybe String -> m k)
+  | Print (Doc AnsiStyle) (m k)
+  deriving (Functor, Generic1)
+
+instance HFunctor Readline
+instance Effect   Readline
diff --git a/test/Test.hs b/test/Test.hs
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--- /dev/null
+++ b/test/Test.hs
@@ -0,0 +1,6 @@
+module Main
+( main
+) where
+
+main :: IO ()
+main = pure ()