diff --git a/CHANGELOG.md b/CHANGELOG.md
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--- /dev/null
+++ b/CHANGELOG.md
@@ -0,0 +1,4 @@
+# CHANGELOG
+
+## 0.0.1
+The first compilable and working version
diff --git a/LICENSE b/LICENSE
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--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,30 @@
+Copyright (c) 2015, s9gf4ult
+
+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 s9gf4ult 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/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/hset.cabal b/hset.cabal
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--- /dev/null
+++ b/hset.cabal
@@ -0,0 +1,30 @@
+name:                hset
+version:             0.0.1
+synopsis:            Primitive heterogenous read-only set
+license:             BSD3
+license-file:        LICENSE
+author:              s9gf4ult
+maintainer:          s9gf4ult@gmail.com
+category:            Data
+build-type:          Simple
+cabal-version:       >=1.10
+extra-source-files:  CHANGELOG.md
+homepage: https://bitbucket.org/s9gf4ult/hset
+source-repository head
+  type: git
+  location: git@bitbucket.org:s9gf4ult/hset.git
+
+
+library
+  default-language:    Haskell2010
+  hs-source-dirs:      src
+  exposed-modules:     Data.HSet
+  build-depends:       base >=4.6 && < 5
+
+  default-extensions: DataKinds
+                    , FlexibleInstances
+                    , GADTs
+                    , KindSignatures
+                    , MultiParamTypeClasses
+                    , TypeFamilies
+                    , TypeOperators
diff --git a/src/Data/HSet.hs b/src/Data/HSet.hs
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--- /dev/null
+++ b/src/Data/HSet.hs
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+module Data.HSet
+       ( HSet(..)
+       , HGet(..)
+       ) where
+
+data Nat = Z | S Nat
+
+type family Elem (typ :: *) (typs :: [*]) :: Bool where
+    Elem typ '[]             = 'False
+    Elem typ (typ ': typs)   = 'True
+    Elem typ1 (typ2 ': typs) = Elem typ1 typs
+
+type family Index (typ :: *) (typs :: [*]) :: Nat where
+  Index t (t ': ts) = 'Z
+  Index t (tt ': ts) = 'S (Index t ts)
+
+-- | Heterogeneous set (list) of elements with unique types. Usefull
+-- with MonadReader
+data HSet (elems :: [*]) where
+  HSNil  :: HSet '[]
+  HSCons :: ('False ~ (Elem elem elems)) => elem -> HSet elems -> HSet (elem ': elems)
+
+class (i ~ (Index e els)) => HGet els e i where
+  -- | Get any data from HSet for you
+  hget :: HSet els -> e
+
+instance HGet (e ': els) e 'Z where
+  hget (HSCons e _) = e
+
+instance (i ~ (Index e els), ('S i) ~ (Index e (e1 ': els)), HGet els e i) => HGet (e1 ': els) e ('S i) where
+  hget (HSCons _ els) = hget els
+
+
+----------------------------------------------------------------
+-- Tests: if this is compilable then tests done trollface.jpg --
+
+fun :: HSet '[Int, Double, Integer, Float]
+fun = HSCons 1
+      $ HSCons 2
+      $ HSCons 3
+      $ HSCons 4
+      $ HSNil
+
+funInt :: Int
+funInt = hget fun
+
+funDoube :: Double
+funDoube = hget fun
+
+funInteger :: Integer
+funInteger = hget fun
+
+funFloat :: Float
+funFloat = hget fun