diff --git a/LICENSE b/LICENSE
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--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,30 @@
+Copyright Alexander Thiemann (c) 2016
+
+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 Alexander Thiemann 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
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+# Various strict data structures
+
+This package currently contains strict data structures and usefuly instance for:
+
+* `Data.Option` to replace `Data.Maybe`
diff --git a/Setup.hs b/Setup.hs
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--- /dev/null
+++ b/Setup.hs
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+import Distribution.Simple
+main = defaultMain
diff --git a/src/Data/Option.hs b/src/Data/Option.hs
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--- /dev/null
+++ b/src/Data/Option.hs
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+{-# LANGUAGE DeriveGeneric #-}
+module Data.Option where
+
+import Control.Applicative
+import Control.DeepSeq
+import Control.Monad
+import Data.Aeson
+import Data.Store
+import GHC.Generics
+
+data Option a
+   = None
+   | Some !a
+   deriving (Show, Eq, Ord, Generic)
+
+instance NFData a => NFData (Option a)
+instance Store a => Store (Option a)
+
+instance Functor Option where
+    fmap f x =
+        case x of
+          None -> None
+          Some v -> Some (f v)
+    {-# INLINE fmap #-}
+
+instance Applicative Option where
+    pure = Some
+    {-# INLINE pure #-}
+
+    f <*> x =
+        case f of
+          Some g -> fmap g x
+          None -> None
+    {-# INLINE (<*>) #-}
+
+instance Monad Option where
+    (Some x) >>= k = k x
+    None  >>= _ = None
+    (>>) = (*>)
+    fail _ = None
+
+instance Monoid a => Monoid (Option a) where
+    mempty = None
+    None `mappend` m = m
+    m `mappend` None = m
+    Some m1 `mappend` Some m2 = Some (m1 `mappend` m2)
+
+instance Alternative Option where
+    empty = None
+    None <|> r = r
+    l <|> _ = l
+
+instance MonadPlus Option
+
+instance ToJSON a => ToJSON (Option a) where
+    toJSON = toJSON . optionToMaybe
+    {-# INLINE toJSON #-}
+
+instance FromJSON a => FromJSON (Option a) where
+    parseJSON x = maybeToOption <$> parseJSON x
+    {-# INLINE parseJSON #-}
+
+optionToMaybe :: Option a -> Maybe a
+optionToMaybe x =
+    case x of
+      Some v -> Just v
+      None -> Nothing
+{-# INLINE optionToMaybe #-}
+
+maybeToOption :: Maybe a -> Option a
+maybeToOption x =
+    case x of
+      Just v -> Some v
+      Nothing -> None
+{-# INLINE maybeToOption #-}
diff --git a/strict-data.cabal b/strict-data.cabal
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--- /dev/null
+++ b/strict-data.cabal
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+name:                strict-data
+version:             0.1.0.0
+synopsis:            Verious useful strict data structures
+description:         Please see README.md
+homepage:            https://github.com/agrafix/strict-data#readme
+license:             BSD3
+license-file:        LICENSE
+author:              Alexander Thiemann
+maintainer:          mail@athiemann.net
+copyright:           2016 Alexander Thiemann <mail@athiemann.net>
+category:            Data
+build-type:          Simple
+extra-source-files:
+    README.md
+cabal-version:       >=1.10
+
+library
+  hs-source-dirs:      src
+  exposed-modules:     Data.Option
+  build-depends:       base >= 4.7 && < 5, aeson, store, deepseq
+  default-language:    Haskell2010
+
+source-repository head
+  type:     git
+  location: https://github.com/agrafix/strict-data