diff --git a/Rakefile b/Rakefile
index e22d8e3..c073ec4 100644
--- a/Rakefile
+++ b/Rakefile
@@ -12,7 +12,7 @@ Releasy::Project.new do
   verbose
 
   add_build :windows_folder do
-    # icon "assets/icon.ico"
+    icon "static/icon.ico"
     executable_type :console # Assuming you don't want it to run with a console window.
     add_package :exe # Windows self-extracting archive.
   end
diff --git a/_background_menu_test.rb b/_background_menu_test.rb
index bc72da4..a2dd0ae 100644
--- a/_background_menu_test.rb
+++ b/_background_menu_test.rb
@@ -1,5 +1,8 @@
-require "gosu"
-require_relative "lib/objects/text"
+begin
+  require_relative "../cyberarm_engine/lib/cyberarm_engine"
+rescue LoadError
+  require "cyberarm_engine"
+end
 
 class Window < Gosu::Window
   def initialize
@@ -9,8 +12,8 @@ class Window < Gosu::Window
     @slope = 250
     @color_step = 10
     @base_color = Gosu::Color.rgb(255, 127, 0)
-    @title = Text.new("I-MIC FPS", color: Gosu::Color.rgb(255,127,0), size: 100, x: 0, y: 15, alignment: :center)
-    @singleplayer = Text.new("Singleplayer", color: Gosu::Color.rgb(0,127,127), size: 50, x: 0, y: 150, alignment: :center)
+    @title = CyberarmEngine::Text.new("I-MIC FPS", color: Gosu::Color.rgb(255,127,0), size: 100, x: 0, y: 15, alignment: :center)
+    @singleplayer = CyberarmEngine::Text.new("Singleplayer", color: Gosu::Color.rgb(0,127,127), size: 50, x: 0, y: 150, alignment: :center)
   end
 
   def draw
diff --git a/i-mic-fps.rb b/i-mic-fps.rb
index 8c7c7f6..66de036 100644
--- a/i-mic-fps.rb
+++ b/i-mic-fps.rb
@@ -3,10 +3,12 @@ require "yaml"
 require "json"
 require "abbrev"
 require "time"
+require "socket"
 
 require "opengl"
 require "glu"
 require "nokogiri"
+require "async/websocket"
 
 begin
   require_relative "../cyberarm_engine/lib/cyberarm_engine"
diff --git a/lib/managers/network_manager.rb b/lib/managers/network_manager.rb
index e69de29..310f7f1 100644
--- a/lib/managers/network_manager.rb
+++ b/lib/managers/network_manager.rb
@@ -0,0 +1,26 @@
+class IMICFPS
+  class NetworkManager
+    MULTICAST_ADDRESS = "224.0.0.1"
+    MULTICAST_PORT = 30_000
+
+    REMOTE_GAMEHUB = "i-mic.rubyclan.org"
+    REMOTE_GAMEHUB_PORT = 98765
+
+    DEFAULT_SERVER_HOST = "0.0.0.0"
+    DEFAULT_SERVER_PORT = 56789
+    DEFAULT_SERVER_QUERY_PORT = 28900
+    def initialize
+    end
+
+    # https://github.com/jpignata/blog/blob/master/articles/multicast-in-ruby.md
+    def broadcast_lan_lobby
+      socket = UDPSocket.open
+      socket.setsockopt(:IPPROTO_IP, :IP_MULTICAST_TTL, 1)
+      socket.send("IMICFPS_LAN_LOBBY", 0, MULTICAST_ADDRESS, MULTICAST_PORT)
+      socket.close
+    end
+
+    def handle_lan_multicast
+    end
+  end
+end
\ No newline at end of file
diff --git a/pixel_test.png b/pixel_test.png
deleted file mode 100644
index 819f819..0000000
Binary files a/pixel_test.png and /dev/null differ
diff --git a/static/icon.ico b/static/icon.ico
new file mode 100644
index 0000000..71c5555
Binary files /dev/null and b/static/icon.ico differ