diff --git a/LICENSE b/LICENSE
new file mode 100644
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2020 Tom Sydney Kerckhove
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/src/Data/Validity/Persist.hs b/src/Data/Validity/Persist.hs
new file mode 100644
--- /dev/null
+++ b/src/Data/Validity/Persist.hs
@@ -0,0 +1,12 @@
+{-# OPTIONS_GHC -fno-warn-orphans #-}
+
+module Data.Validity.Persist where
+
+import Data.Validity
+import Database.Persist
+
+instance Validity (Key a) where
+  validate = trivialValidation
+
+instance Validity a => Validity (Entity a) where
+  validate e = mconcat [delve "entityKey" $ entityKey e, delve "entityVal" $ entityVal e]
diff --git a/validity-persistent.cabal b/validity-persistent.cabal
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--- /dev/null
+++ b/validity-persistent.cabal
@@ -0,0 +1,39 @@
+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: 29ace0bfb76e773d39227d4049242ee3ce7fac1bee0150609004a175283ef9b4
+
+name:           validity-persistent
+version:        0.0.0.0
+synopsis:       Validity instances for persistent-related types
+category:       Testing
+homepage:       http://cs-syd.eu
+bug-reports:    https://github.com/NorfairKing/validity/issues
+author:         Tom Sydney Kerckhove
+maintainer:     syd@cs-syd.eu
+copyright:      Copyright: (c) 2020 Tom Sydney Kerckhove
+license:        MIT
+license-file:   LICENSE
+build-type:     Simple
+
+source-repository head
+  type: git
+  location: https://github.com/NorfairKing/validity
+
+library
+  exposed-modules:
+      Data.Validity.Persist
+  other-modules:
+      Paths_validity_persistent
+  hs-source-dirs:
+      src/
+  ghc-options: -Wall
+  build-depends:
+      base >=4.9 && <=5
+    , hspec
+    , persistent
+    , validity
+  default-language: Haskell2010