diff --git a/contrib/nix/README.md b/contrib/nix/README.md
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+++ b/contrib/nix/README.md
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+# Nix sandbox for datahub
+
+
+## Introduction
+database is not suitable for virtualization for it's io performance.
+
+so we use simple nix package tool to install package and setup service on physical machine.
+
+we declare it, then it works. see [sandbox.nix] file for details.
+
+it install software on /nix directory, and run service on launchpad(darwin) and systemd(linux).
+
+
+## Roadmap
+currently i already run all service on mac os. 
+linux os will be tested and supportd will come sooner.
+  
+
+## Quickstart
+1.  install nix and channel
+
+```
+  sudo install -d -m755 -o $(id -u) -g $(id -g) /nix
+  curl https://nixos.org/nix/install | sh
+  
+  nix-channel --add https://nixos.org/channels/nixos-20.03 nixos-20.03
+  nix-channel --update nixos-20.03
+```
+
+2. install home-manager
+
+```
+  nix-channel --add https://github.com/clojurians-org/home-manager/archive/master.tar.gz home-manager
+  nix-channel --update
+  nix-shell '<home-manager>' -A install
+```
+
+3. setup environment, and well done!
+```
+  export NIX_PATH=~/.nix-defexpr/channels
+  home-manager -I home-manager=<home-manager> -f sandbox.nix switch
+```
diff --git a/contrib/nix/sandbox.nix b/contrib/nix/sandbox.nix
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+++ b/contrib/nix/sandbox.nix
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+{ config, pkgs, ... }:
+
+{
+  # Let Home Manager install and manage itself.
+  programs.home-manager.enable = true;
+
+  # This value determines the Home Manager release that your
+  # configuration is compatible with. This helps avoid breakage
+  # when a new Home Manager release introduces backwards
+  # incompatible changes.
+  #
+  # You can update Home Manager without changing this value. See
+  # the Home Manager release notes for a list of state version
+  # changes in each release.
+  home.stateVersion = "19.09";
+
+  
+  environment.systemPackages = [
+    pkgs.gradle
+
+    pkgs.postgresql_11
+    pkgs.mysql57
+    pkgs.elasticsearch7
+    pkgs.neo4j
+    pkgs.zookeeper
+    pkgs.apacheKafka
+    pkgs.confluent-platform
+    pkgs.kafkacat
+    pkgs.neo4j
+  ];
+
+  services.postgresql = { 
+    enable = true ; 
+    package = pkgs.postgresql_11 ;
+    dataDir = "/opt/nix-module/data/postgresql" ;
+  } ;
+
+  services.mysql = {
+    enable = true ;
+    # package = pkgs.mysql80 ;
+    package = pkgs.mysql57 ;
+    dataDir = "/opt/nix-module/data/mysql" ;
+    unixSocket = "/opt/nix-module/run/mysql.sock" ;
+  } ;
+
+  services.elasticsearch = {
+    enable = true ;
+    package = pkgs.elasticsearch7 ;
+    dataDir = "/opt/nix-module/data/elasticsearch" ;
+  } ;
+  
+  services.neo4j = {
+    enable = true ;
+    package = pkgs.neo4j ;
+    directories.home = "/opt/nix-module/data/neo4j" ;
+  } ;
+
+  services.zookeeper = {
+    enable = true ;
+    package = pkgs.zookeeper ;
+    dataDir = "/opt/nix-module/data/zookeeper" ;
+  } ;
+
+  services.apache-kafka = {
+    enable = true ;
+    package = pkgs.apacheKafka ;
+    logDirs = [ "/opt/nix-module/data/kafka" ] ;
+    zookeeper = "localhost:2181" ;
+    extraProperties = ''
+      offsets.topic.replication.factor = 1
+      zookeeper.session.timeout.ms = 600000
+    '' ;    
+  } ;
+
+  services.confluent-schema-registry = {
+    enable = true ;
+    package = pkgs.confluent-platform ;
+    kafkas = [ "PLAINTEXT://localhost:9092" ] ;
+  } ;
+}