diff --git a/ChangeLog.md b/ChangeLog.md
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+++ b/ChangeLog.md
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+# Changelog for password-instances
+
+## 0.1.0.0
+
+- Initial version.
+
diff --git a/LICENSE b/LICENSE
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--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,30 @@
+Copyright Dennis Gosnell (c) 2019
+
+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 Dennis Gosnell 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/README.md b/README.md
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--- /dev/null
+++ b/README.md
@@ -0,0 +1,10 @@
+# password-instances
+
+[![Build Status](https://secure.travis-ci.org/cdepillabout/password.svg)](http://travis-ci.org/cdepillabout/password)
+[![Hackage](https://img.shields.io/hackage/v/password-instances.svg)](https://hackage.haskell.org/package/password-instances)
+[![Stackage LTS](http://stackage.org/package/password-instances/badge/lts)](http://stackage.org/lts/package/password-instances)
+[![Stackage Nightly](http://stackage.org/package/password-instances/badge/nightly)](http://stackage.org/nightly/package/password-instances)
+[![BSD3 license](https://img.shields.io/badge/license-BSD3-blue.svg)](./LICENSE)
+
+This package provides various typeclass instances for the plain-text password
+and hashed password datatypes from the [password](../password) package.
diff --git a/Setup.hs b/Setup.hs
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--- /dev/null
+++ b/Setup.hs
@@ -0,0 +1,2 @@
+import Distribution.Simple
+main = defaultMain
diff --git a/password-instances.cabal b/password-instances.cabal
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+++ b/password-instances.cabal
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+cabal-version: 1.12
+
+name:           password-instances
+version:        0.1.0.0
+category:       Data
+synopsis:       typeclass instances for password package
+description:    A library providing typeclass instances for common libraries for the types from the password package.
+homepage:       https://github.com/cdepillabout/password/password-instances#readme
+bug-reports:    https://github.com/cdepillabout/password/issues
+author:         Dennis Gosnell
+maintainer:     cdep.illabout@gmail.com
+copyright:      Copyright (c) 2019 Dennis Gosnell
+license:        BSD3
+license-file:   LICENSE
+build-type:     Simple
+extra-source-files:
+    README.md
+    ChangeLog.md
+
+source-repository head
+  type: git
+  location: https://github.com/cdepillabout/password
+
+library
+  hs-source-dirs:
+      src
+  exposed-modules:
+      Data.Password.Instances
+  other-modules:
+      Paths_password_instances
+  build-depends:
+      base >=4.7 && <5
+    , aeson
+    , password
+    , persistent
+  ghc-options:
+      -Wall
+  default-language:
+      Haskell2010
+
+test-suite password-instances-doctest
+  type:
+      exitcode-stdio-1.0
+  hs-source-dirs:
+      test/doctest
+  main-is:
+      doctest.hs
+  ghc-options:
+      -threaded -rtsopts -with-rtsopts=-N
+  build-depends:
+      base >=4.7 && <5
+    , doctest
+    , QuickCheck
+    , quickcheck-instances
+  default-language:
+      Haskell2010
+
+test-suite password-instances-tasty
+  type:
+      exitcode-stdio-1.0
+  hs-source-dirs:
+      test/tasty
+  main-is:
+      Spec.hs
+  ghc-options:
+      -threaded -rtsopts -with-rtsopts=-N
+  build-depends:
+      base >=4.7 && <5
+    , password-instances
+  default-language:
+      Haskell2010
diff --git a/src/Data/Password/Instances.hs b/src/Data/Password/Instances.hs
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--- /dev/null
+++ b/src/Data/Password/Instances.hs
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+{-# LANGUAGE DerivingStrategies #-}
+{-# LANGUAGE InstanceSigs #-}
+{-# LANGUAGE GeneralizedNewtypeDeriving #-}
+{-# LANGUAGE OverloadedStrings #-}
+{-# LANGUAGE ScopedTypeVariables #-}
+{-# LANGUAGE StandaloneDeriving #-}
+{-# OPTIONS_GHC -fno-warn-orphans #-}
+
+{-|
+Module      : Data.Password.Instances
+Copyright   : (c) Dennis Gosnell, 2019
+License     : BSD-style (see LICENSE file)
+Maintainer  : cdep.illabout@gmail.com
+Stability   : experimental
+Portability : POSIX
+
+This module provides the same interface as "Data.Password", but it also
+provides additional typeclass instances for 'Pass' and 'PassHash'.
+
+See the "Data.Password" module for more information.
+-}
+
+module Data.Password.Instances
+  (
+    -- * Plaintext Password
+    Pass(..)
+    -- * Hashed Password
+  , PassHash(..)
+  , Salt(..)
+    -- * Functions for Hashing Plaintext Passwords
+  , hashPass
+  , hashPassWithSalt
+  , newSalt
+    -- * Functions for Checking Plaintext Passwords Against Hashed Passwords
+  , checkPass
+  , PassCheck(..)
+    -- * Unsafe Debugging Functions for Showing a Password
+  , unsafeShowPassword
+  , unsafeShowPasswordText
+  , -- * Setup for doctests.
+    -- $setup
+  ) where
+
+import Data.Aeson (FromJSON)
+import Data.Password
+import Database.Persist.Class (PersistField)
+
+
+-- $setup
+-- >>> :set -XOverloadedStrings
+--
+-- Import needed functions.
+--
+-- >>> import Data.Aeson (decode)
+-- >>> import Database.Persist.Class (PersistField(toPersistValue))
+
+
+-- | This instance allows a 'Pass' to be created from a JSON blob.
+--
+-- >>> let maybePass = decode "\"foobar\"" :: Maybe Pass
+-- >>> fmap unsafeShowPassword maybePass
+-- Just "foobar"
+--
+-- There is no instance for 'ToJSON' for 'Pass' because we don't want to
+-- accidentally encode a plain-text 'Pass' to JSON and send it to the end-user.
+--
+-- Similarly, there is no 'ToJSON' and 'FromJSON' instance for 'PassHash'
+-- because we don't want to accidentally send the password hash to the end
+-- user.
+deriving newtype instance FromJSON Pass
+
+-- | This instance allows a 'PassHash' to be stored as a field in a database using
+-- "Database.Persist".
+--
+-- >>> let salt = Salt "abcdefghijklmnopqrstuvwxyz012345"
+-- >>> let pass = Pass "foobar"
+-- >>> let hashedPassword = hashPassWithSalt (Pass "foobar") salt
+-- >>> toPersistValue hashedPassword
+-- PersistText "14|8|1|YWJjZGVmZ2hpamtsbW5vcHFyc3R1dnd4eXowMTIzNDU=|nENDaqWBmPKapAqQ3//H0iBImweGjoTqn5SvBS8Mc9FPFbzq6w65maYPZaO+SPamVZRXQjARQ8Y+5rhuDhjIhw=="
+--
+-- In the example above, the long 'PersistText' will be the value you store in
+-- the database.
+--
+-- We don't provide an instance of 'PersistField' for 'Pass', because we don't
+-- want to make it easy to store a plain-text password in the database.
+deriving newtype instance PersistField PassHash
diff --git a/test/doctest/doctest.hs b/test/doctest/doctest.hs
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--- /dev/null
+++ b/test/doctest/doctest.hs
@@ -0,0 +1,7 @@
+
+module Main (main) where
+
+import Test.DocTest
+
+main :: IO ()
+main = doctest ["src"]
diff --git a/test/tasty/Spec.hs b/test/tasty/Spec.hs
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--- /dev/null
+++ b/test/tasty/Spec.hs
@@ -0,0 +1,2 @@
+main :: IO ()
+main = putStrLn "Test suite not yet implemented"