diff --git a/pie/.gitignore b/pie/.gitignore
new file mode 100644
index 0000000..6c38cb1
--- /dev/null
+++ b/pie/.gitignore
@@ -0,0 +1,2 @@
+.stack-work/
+dist-newstyle/
diff --git a/pie/ChangeLog.md b/pie/ChangeLog.md
new file mode 100644
index 0000000..b16326d
--- /dev/null
+++ b/pie/ChangeLog.md
@@ -0,0 +1,3 @@
+# Changelog for pie
+
+## Unreleased changes
diff --git a/pie/LICENSE b/pie/LICENSE
new file mode 100644
index 0000000..302fac0
--- /dev/null
+++ b/pie/LICENSE
@@ -0,0 +1,30 @@
+Copyright Kierán Meinhardt (c) 2020
+
+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 Kierán Meinhardt nor the names of other
+      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
+OWNER 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/pie/README.md b/pie/README.md
new file mode 100644
index 0000000..1d6a8c2
--- /dev/null
+++ b/pie/README.md
@@ -0,0 +1 @@
+# pie
diff --git a/pie/Setup.hs b/pie/Setup.hs
new file mode 100644
index 0000000..9a994af
--- /dev/null
+++ b/pie/Setup.hs
@@ -0,0 +1,2 @@
+import Distribution.Simple
+main = defaultMain
diff --git a/pie/app/Main.hs b/pie/app/Main.hs
new file mode 100644
index 0000000..de1c1ab
--- /dev/null
+++ b/pie/app/Main.hs
@@ -0,0 +1,6 @@
+module Main where
+
+import Lib
+
+main :: IO ()
+main = someFunc
diff --git a/pie/default.nix b/pie/default.nix
new file mode 100644
index 0000000..7f1f486
--- /dev/null
+++ b/pie/default.nix
@@ -0,0 +1,6 @@
+{ pkgs ? import <nixpkgs> {} }:
+with pkgs.haskellPackages;
+developPackage {
+  root = ./.;
+  modifier = drv: pkgs.haskell.lib.addBuildTools drv [ cabal-install ghcid ];
+}
diff --git a/pie/package.yaml b/pie/package.yaml
new file mode 100644
index 0000000..89b7f15
--- /dev/null
+++ b/pie/package.yaml
@@ -0,0 +1,48 @@
+name:                pie
+version:             0.1.0.0
+github:              "kmein/pie"
+license:             BSD3
+author:              "Kierán Meinhardt"
+maintainer:          "kieran.meinhardt@gmail.com"
+copyright:           "Copyright: (c) 2019 Kierán Meinhardt"
+
+extra-source-files:
+- README.md
+- ChangeLog.md
+
+# Metadata used when publishing your package
+# synopsis:            Short description of your package
+# category:            Web
+
+# To avoid duplicated efforts in documentation and dealing with the
+# complications of embedding Haddock markup inside cabal files, it is
+# common to point users to the README.md file.
+description:         Please see the README on GitHub at <https://github.com/kmein/pie#readme>
+
+dependencies:
+- base >= 4.7 && < 5
+
+library:
+  source-dirs: src
+
+executables:
+  pie-exe:
+    main:                Main.hs
+    source-dirs:         app
+    ghc-options:
+    - -threaded
+    - -rtsopts
+    - -with-rtsopts=-N
+    dependencies:
+    - pie
+
+tests:
+  pie-test:
+    main:                Spec.hs
+    source-dirs:         test
+    ghc-options:
+    - -threaded
+    - -rtsopts
+    - -with-rtsopts=-N
+    dependencies:
+    - pie
diff --git a/pie/pie.cabal b/pie/pie.cabal
new file mode 100644
index 0000000..d77dcbe
--- /dev/null
+++ b/pie/pie.cabal
@@ -0,0 +1,64 @@
+cabal-version: 1.12
+
+-- This file has been generated from package.yaml by hpack version 0.33.0.
+--
+-- see: https://github.com/sol/hpack
+--
+-- hash: 7b2191766b707f18a8358cd8565a38904d2b7e91376ea706ee91882a8c811f19
+
+name:           pie
+version:        0.1.0.0
+description:    Please see the README on GitHub at <https://github.com/kmein/pie#readme>
+homepage:       https://github.com/kmein/pie#readme
+bug-reports:    https://github.com/kmein/pie/issues
+author:         Kierán Meinhardt
+maintainer:     kieran.meinhardt@gmail.com
+copyright:      Copyright: (c) 2019 Kierán Meinhardt
+license:        BSD3
+license-file:   LICENSE
+build-type:     Simple
+extra-source-files:
+    README.md
+    ChangeLog.md
+
+source-repository head
+  type: git
+  location: https://github.com/kmein/pie
+
+library
+  exposed-modules:
+      Lib,
+      Phonology,
+      Util
+  other-modules:
+      Paths_pie
+  hs-source-dirs:
+      src
+  build-depends:
+      base >=4.7 && <5
+  default-language: Haskell2010
+
+executable pie-exe
+  main-is: Main.hs
+  other-modules:
+      Paths_pie
+  hs-source-dirs:
+      app
+  ghc-options: -threaded -rtsopts -with-rtsopts=-N
+  build-depends:
+      base >=4.7 && <5
+    , pie
+  default-language: Haskell2010
+
+test-suite pie-test
+  type: exitcode-stdio-1.0
+  main-is: Spec.hs
+  other-modules:
+      Paths_pie
+  hs-source-dirs:
+      test
+  ghc-options: -threaded -rtsopts -with-rtsopts=-N
+  build-depends:
+      base >=4.7 && <5
+    , pie
+  default-language: Haskell2010
diff --git a/pie/src/Lib.hs b/pie/src/Lib.hs
new file mode 100644
index 0000000..4f8a367
--- /dev/null
+++ b/pie/src/Lib.hs
@@ -0,0 +1,101 @@
+{-# LANGUAGE FlexibleInstances #-}
+{-# LANGUAGE TypeFamilies #-}
+module Lib
+  ( someFunc
+  )
+where
+
+import           Phonology
+import           Util                           ( replaceSublist )
+
+import           Control.Monad                  ( forM_ )
+import           Data.List                      ( zip3 )
+
+{-
+import           Data.Void
+import qualified Text.Megaparsec               as Parsec
+import qualified Text.Megaparsec.Stream        as Parsec
+
+instance Parsec.Stream [Phoneme] where
+  type Token [Phoneme] = Phoneme
+  type Tokens [Phoneme] = [Phoneme]
+  tokensToChunk _ = id
+  chunkToTokens _ = id
+  chunkLength _ = length
+  take1_ []       = Nothing
+  take1_ (x : xs) = Just (x, xs)
+  takeN_ n xs = if length xs >= n then Just (splitAt n xs) else Nothing
+  takeWhile_ = span
+  showTokens _ = show
+  reachOffset offset posState =
+    Parsec.reachOffset' splitAt foldl' id id ('\n', '\t') o pst
+
+
+
+parseRoot :: Parsec.Parsec Void [Phoneme] ()
+parseRoot = () <$ do
+  Parsec.optional $ satisfyFeature (`elem` [Sibilant, Laryngeal])
+  Parsec.optional $ satisfyFeature isPlosive
+  satisfyFeature $ \p -> isPlosive p || p == Resonant
+  Parsec.single E
+  satisfyFeature $ \p -> isPlosive p || p == Resonant
+  Parsec.optional $ satisfyFeature isPlosive
+  Parsec.optional $ satisfyFeature (`elem` [Sibilant, Laryngeal])
+ where
+  satisfyFeature :: (FeatureSet -> Bool) -> Parsec.Parsec Void [Phoneme] Phoneme
+  satisfyFeature p = Parsec.satisfy (p . features)
+-}
+
+
+
+syllabify :: [Phoneme] -> [Bool]
+syllabify = replaceSublist [True, True] [True, False]  -- replace VV by VC
+                                                      . foldr isSonant []
+ where
+  hasToBeSyllabic p = features p == Vowel
+  canBeSyllabic p = features p `elem` [Vowel, Resonant]
+  isSonant current xs = case xs of
+    []                   -> [canBeSyllabic current] -- make last phoneme in word syllabic
+    previousIsSonant : _ -> if previousIsSonant
+      then hasToBeSyllabic current : xs -- only vowels are sonant, the rest can be consonantal
+      else canBeSyllabic current : xs -- make syllabic if previous is not syllabic
+
+
+syllableCores :: [Phoneme] -> [Bool]
+syllableCores = localMax . (++ [0]) . ([0] ++) . map (sonority . features)
+ where
+  localMax xs = map project $ zip3 xs (tail xs) (drop 2 xs)
+    where project (x, y, z) = x <= y && y >= z
+
+-- chunkSyllables :: [Bool] -> [[Bool]]
+-- chunkSyllables = _
+
+someFunc :: IO ()
+someFunc = do
+  let pieLines =
+        [ [Kj, M, T, O, M]
+        , [N, E, H2, U, S]
+        , [I, U, N, E, G, T, I]
+        , [I, U, N, G, E, N, T, I]
+        , [H2, N, R, Bh, I]
+        , [H2, E, R, H3, T, R, O, M]
+        , [H2, I, U, H, O, N]
+        , [H2, S, N, T, I, E, H2]
+        , [Gh, E_, I, M, N, O]
+        , [Kj, U, N, Bh, I]
+        , [D, I, U, O, S]
+        , [N, M, R, T, O, S]
+        , [U, L, Kw, O, S]
+        , [Kj, U, N, O, S]
+        , [D, N, T, N, S]
+        , [N, D, R, Kj, T, O, S]
+        , [U, N, T, O, S]
+        , [D, U, I, D, Kj, M, T]
+        , [Kj, L, U, Dh, I]
+        , [H1, N, E, U, N]
+        , [H2, U, E, H1, N, T, O, S]
+        ]
+  forM_ pieLines $ \line -> do
+    putStr $ concatMap show line
+    putChar ' '
+    putStrLn $ concat $ zipWith showSyllabic line (syllabify line)
diff --git a/pie/src/Phonology.hs b/pie/src/Phonology.hs
new file mode 100644
index 0000000..aa1bd48
--- /dev/null
+++ b/pie/src/Phonology.hs
@@ -0,0 +1,105 @@
+{-# LANGUAGE LambdaCase #-}
+{-# LANGUAGE MultiWayIf #-}
+module Phonology where
+
+
+data Manner = MediaAspirata | Media | Tenuis
+  deriving (Show, Eq, Ord)
+
+data Place = Labial | Dental | Palatal | Velar | Labiovelar
+  deriving (Show, Eq, Ord)
+
+data Phoneme
+  = E | O | A | E_ | O_ | A_
+  | I | U | N | M | R | L
+  | P | B | Bh | T | D | Dh | Kj | Gj | Gjh | K | G | Gh | Kw | Gw | Gwh | S | H1 | H2 | H3 | H
+  deriving (Eq, Ord)
+
+instance Show Phoneme where
+  show = \case
+    E   -> "e"
+    O   -> "o"
+    A   -> "a"
+    E_  -> "ē"
+    O_  -> "ō"
+    A_  -> "ā"
+    I   -> "i"
+    U   -> "u"
+    N   -> "n"
+    M   -> "m"
+    R   -> "r"
+    L   -> "l"
+    P   -> "p"
+    B   -> "b"
+    Bh  -> "bh"
+    T   -> "t"
+    D   -> "d"
+    Dh  -> "dh"
+    Kj  -> "ḱ"
+    Gj  -> "ǵ"
+    Gjh -> "ǵh"
+    K   -> "k"
+    G   -> "g"
+    Gh  -> "gh"
+    Kw  -> "kʷ"
+    Gw  -> "gʷ"
+    Gwh -> "gʷh"
+    S   -> "s"
+    H1  -> "h₁"
+    H2  -> "h₂"
+    H3  -> "h₃"
+    H   -> "H"
+
+data FeatureSet
+  = Vowel
+  | Resonant
+  | Laryngeal
+  | Sibilant
+  | Plosive { manner :: Manner, place :: Place }
+  deriving (Show, Eq, Ord)
+
+sonority :: FeatureSet -> Int
+sonority = \case
+  Vowel       -> 4
+  Resonant    -> 3
+  Laryngeal   -> 3
+  Sibilant    -> 2
+  Plosive _ _ -> 1
+
+isPlosive :: FeatureSet -> Bool
+isPlosive (Plosive _ _) = True
+isPlosive _             = False
+
+features :: Phoneme -> FeatureSet
+features phoneme
+  | phoneme == S = Sibilant
+  | phoneme `elem` [E, O, A, E_, O_, A_] = Vowel
+  | phoneme `elem` [H1, H2, H3, H] = Laryngeal
+  | phoneme `elem` [I, U, N, M, R, L] = Resonant
+  | otherwise = Plosive
+    { manner = if
+                 | phoneme `elem` [P, T, K, Kj, Kw]      -> Tenuis
+                 | phoneme `elem` [B, D, G, Gj, Gw]      -> Media
+                 | phoneme `elem` [Bh, Dh, Gh, Gjh, Gwh] -> MediaAspirata
+    , place  = if
+                 | phoneme `elem` [P, B, Bh]    -> Labial
+                 | phoneme `elem` [T, D, Dh]    -> Dental
+                 | phoneme `elem` [Kj, Gj, Gjh] -> Palatal
+                 | phoneme `elem` [K, G, Gh]    -> Velar
+                 | phoneme `elem` [Kw, Gw, Gwh] -> Labiovelar
+    }
+
+showSyllabic :: Phoneme -> Bool -> String
+showSyllabic phoneme syllabic = case (phoneme, syllabic) of
+  (I , False) -> "y"
+  (U , False) -> "w"
+  (N , True ) -> "ṇ"
+  (M , True ) -> "ṃ"
+  (R , True ) -> "ṛ"
+  (L , True ) -> "ḷ"
+  -- (H1, True ) -> "ə₁"
+  -- (H2, True ) -> "ə₂"
+  -- (H3, True ) -> "ə₃"
+  -- (H , True ) -> "ə"
+  _           -> show phoneme
+
diff --git a/pie/src/Util.hs b/pie/src/Util.hs
new file mode 100644
index 0000000..c143d98
--- /dev/null
+++ b/pie/src/Util.hs
@@ -0,0 +1,10 @@
+module Util where
+
+import           Data.List                      ( isPrefixOf )
+
+replaceSublist :: Eq a => [a] -> [a] -> [a] -> [a]
+replaceSublist _    _           []           = []
+replaceSublist list replacement xss@(x : xs) = if list `isPrefixOf` xss
+  then replacement ++ replaceSublist list replacement (drop (length list) xss)
+  else x : replaceSublist list replacement xs
+
diff --git a/pie/stack.yaml b/pie/stack.yaml
new file mode 100644
index 0000000..6a8ec1b
--- /dev/null
+++ b/pie/stack.yaml
@@ -0,0 +1,66 @@
+# This file was automatically generated by 'stack init'
+#
+# Some commonly used options have been documented as comments in this file.
+# For advanced use and comprehensive documentation of the format, please see:
+# https://docs.haskellstack.org/en/stable/yaml_configuration/
+
+# Resolver to choose a 'specific' stackage snapshot or a compiler version.
+# A snapshot resolver dictates the compiler version and the set of packages
+# to be used for project dependencies. For example:
+#
+# resolver: lts-3.5
+# resolver: nightly-2015-09-21
+# resolver: ghc-7.10.2
+#
+# The location of a snapshot can be provided as a file or url. Stack assumes
+# a snapshot provided as a file might change, whereas a url resource does not.
+#
+# resolver: ./custom-snapshot.yaml
+# resolver: https://example.com/snapshots/2018-01-01.yaml
+resolver: lts-16.2
+
+# User packages to be built.
+# Various formats can be used as shown in the example below.
+#
+# packages:
+# - some-directory
+# - https://example.com/foo/bar/baz-0.0.2.tar.gz
+#   subdirs:
+#   - auto-update
+#   - wai
+packages:
+- .
+# Dependency packages to be pulled from upstream that are not in the resolver.
+# These entries can reference officially published versions as well as
+# forks / in-progress versions pinned to a git hash. For example:
+#
+# extra-deps:
+# - acme-missiles-0.3
+# - git: https://github.com/commercialhaskell/stack.git
+#   commit: e7b331f14bcffb8367cd58fbfc8b40ec7642100a
+#
+# extra-deps: []
+
+# Override default flag values for local packages and extra-deps
+# flags: {}
+
+# Extra package databases containing global packages
+# extra-package-dbs: []
+
+# Control whether we use the GHC we find on the path
+# system-ghc: true
+#
+# Require a specific version of stack, using version ranges
+# require-stack-version: -any # Default
+# require-stack-version: ">=2.1"
+#
+# Override the architecture used by stack, especially useful on Windows
+# arch: i386
+# arch: x86_64
+#
+# Extra directories used by stack for building
+# extra-include-dirs: [/path/to/dir]
+# extra-lib-dirs: [/path/to/dir]
+#
+# Allow a newer minor version of GHC than the snapshot specifies
+# compiler-check: newer-minor
diff --git a/pie/stack.yaml.lock b/pie/stack.yaml.lock
new file mode 100644
index 0000000..64c5b74
--- /dev/null
+++ b/pie/stack.yaml.lock
@@ -0,0 +1,12 @@
+# This file was autogenerated by Stack.
+# You should not edit this file by hand.
+# For more information, please see the documentation at:
+#   https://docs.haskellstack.org/en/stable/lock_files
+
+packages: []
+snapshots:
+- completed:
+    size: 531674
+    url: https://raw.githubusercontent.com/commercialhaskell/stackage-snapshots/master/lts/16/2.yaml
+    sha256: 4b08fb9338ca297de7ade8318f4be1216f14dff8c0426c001fb7886ee88cb84a
+  original: lts-16.2
diff --git a/pie/test/Spec.hs b/pie/test/Spec.hs
new file mode 100644
index 0000000..cd4753f
--- /dev/null
+++ b/pie/test/Spec.hs
@@ -0,0 +1,2 @@
+main :: IO ()
+main = putStrLn "Test suite not yet implemented"