diff --git a/docker-compose.yml b/docker-compose.yml
index 4ecd485..0d4e427 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -1,28 +1,6 @@
 version: "2"
 
-volumes:
-  mariadata:
-
 services:
-  tcgsql:
-    image: mariadb:10
-    restart: "no"
-    environment:
-      - "MYSQL_ROOT_PASSWORD=Oonov0caichohth8leiyienguoho8cho"
-    volumes:
-      - "mariadata:/var/lib/mysql"
-
-  adminer:
-    image: adminer:standalone
-    restart: "no"
-    environment:
-      - "ADMINER_DESIGN=rmsoft"
-      - "ADMINER_DEFAULT_SERVER=tcgsql"
-    ports:
-      - "8002:8080"
-
-  # dbuser: fftcg
-  # dbpass: juchie5OhH6eiQuujaoquievezoe9iXe
   fftcg:
     build: .
     command: "yarn debug"
@@ -30,5 +8,6 @@ services:
     volumes:
       - "${PWD}/src:/app/src"
       - "${PWD}/public_html:/app/public_html"
+      - "${PWD}/fftcg.db:/app/fftcg.db"
     ports:
-      - "8001:8080"
+      - "3000:3000"
diff --git a/fftcg.db b/fftcg.db
new file mode 100644
index 0000000..52522d0
Binary files /dev/null and b/fftcg.db differ
diff --git a/inc/fftcgdb.coffee b/inc/fftcgdb.coffee
new file mode 100644
index 0000000..9c17d23
--- /dev/null
+++ b/inc/fftcgdb.coffee
@@ -0,0 +1,43 @@
+# libraries
+bcrypt = (require 'bcrypt')
+sqlite3 = (require 'sqlite3').verbose()
+
+FFTCGDB =
+  open: (filename) ->
+    @filename = filename
+
+    @db = new sqlite3.Database @filename, (err) ->
+      if err
+        console.error err.message
+      console.log 'Connected to', @filename
+
+    @db.run """
+      CREATE TABLE IF NOT EXISTS users (
+        nick text NOT NULL,
+        pwd text NOT NULL,
+        socket text
+      );
+    """
+
+  close: ->
+    db.close (err) ->
+      if err
+        console.error err.message
+      console.log 'Closed', @filename
+
+  adduser: (name, password) ->
+    saltRounds = 13
+    that = @
+
+    bcrypt.hash password, saltRounds, (err, hash) ->
+      that.db.run 'INSERT INTO users (nick, pwd) VALUES (\'' + name + '\', \'' + hash + '\');', (err, result) ->
+        if err
+          console.error err.message
+        console.log 'Result:', result
+
+module.exports = FFTCGDB
+
+# Handle termination
+process.on 'SIGINT', ->
+  console.log '[FFTCG-DB] shutting down'
+  FFTCGDB.close()
diff --git a/package.json b/package.json
index 5cdd0e4..2540967 100644
--- a/package.json
+++ b/package.json
@@ -44,9 +44,9 @@
     "coffeescript": "^2.3.2",
     "express": "^4.16.4",
     "helmet": "^3.15.0",
-    "mysql": "^2.16.0",
     "pug": "^2.0.3",
     "socket.io": "^2.2.0",
-    "socket.io-client": "^2.2.0"
+    "socket.io-client": "^2.2.0",
+    "sqlite3": "^4.0.4"
   }
 }
diff --git a/server.coffee b/server.coffee
index c9a871f..503daf0 100644
--- a/server.coffee
+++ b/server.coffee
@@ -1,21 +1,18 @@
-# libraries
-bcrypt = require('bcrypt')
-express = require('express')
-helmet = require('helmet')
-http = require('http')
-mysql = require('mysql')
-path = require('path')
-socketio = require('socket.io')
+# node libraries
+express = (require 'express')
+helmet = (require 'helmet')
+http = (require 'http')
+path = (require 'path')
+socketio = (require 'socket.io')
 
-# socket.io framework
+# my libraries
+fftcgdb = (require './inc/fftcgdb')
+fftcgdb.open path.resolve(__dirname, 'fftcg.db')
+
+# express + socket.io framework
 app = express()
-web = http.Server(app)
-io = socketio(web)
-
-# Listen server
-web.listen 8080, ->
-  console.log 'Node.js listening on port 8080'
-  return
+web = http.Server app
+io = socketio web
 
 app.use helmet()
 
@@ -27,39 +24,24 @@ app.set 'view engine', 'pug'
 app.get '/:template.html', (req, res) ->
   res.render (req.params.template + '.pug')
 
-con = mysql.createConnection
-  host: 'tcgsql'
-  user: 'fftcg'
-  database: 'fftcg'
-  password: 'juchie5OhH6eiQuujaoquievezoe9iXe'
-
-con.connect (err) ->
-  if err
-    throw err
-  console.log 'Connected to TCGSQL!'
-  return
-
 # Server logic
 io.on 'connection', (socket) ->
 
   console.log 'a user connected'
 
   socket.on 'disconnect', ->
-    # console.log('user disconnected');
+    console.log 'a user disconnected'
     return
 
   socket.on 'login', (msg) ->
     console.log 'message:', msg.uname, msg.password
-    saltRounds = 13
+    fftcgdb.adduser msg.uname, msg.password
 
-    bcrypt.hash msg.password, saltRounds, (err, hash) ->
-      con.query 'INSERT INTO `users` (nick, pwd_hash) VALUES (\'' + msg.uname + '\', \'' + hash + '\');', (err, result) ->
-        if err
-          throw err
-        console.log 'Result: ' + result
-        return
-      return
+# Create server
+web.listen 3000, ->
+  console.log '[FFTCG] Listening on port 3000 ...'
 
-    return
-
-  return
+# Handle termination
+process.on 'SIGINT', ->
+  console.log '[FFTCG] shutting down after SIGINT'
+  process.exit()
diff --git a/users.sql b/users.sql
deleted file mode 100644
index 46e0328..0000000
--- a/users.sql
+++ /dev/null
@@ -1,22 +0,0 @@
--- Adminer 4.6.3 MySQL dump
-
-SET NAMES utf8;
-SET time_zone = '+00:00';
-SET foreign_key_checks = 0;
-SET sql_mode = 'NO_AUTO_VALUE_ON_ZERO';
-
-DROP DATABASE IF EXISTS `fftcg`;
-CREATE DATABASE `fftcg` /*!40100 DEFAULT CHARACTER SET utf8 */;
-USE `fftcg`;
-
-DROP TABLE IF EXISTS `users`;
-CREATE TABLE `users` (
-  `id` int(10) unsigned NOT NULL AUTO_INCREMENT,
-  `nick` varchar(100) NOT NULL,
-  `pwd_hash` char(64) NOT NULL,
-  `socket_id` varchar(64) DEFAULT NULL,
-  PRIMARY KEY (`id`)
-) ENGINE=Aria DEFAULT CHARSET=utf8 PAGE_CHECKSUM=1;
-
-
--- 2018-10-04 00:24:51