diff --git a/bin/uhwm b/bin/uhwm
new file mode 100755
index 0000000..539577c
--- /dev/null
+++ b/bin/uhwm
@@ -0,0 +1,5 @@
+#!/usr/bin/env ruby
+
+require 'uh/wm'
+
+Uh::WM::CLI.run!(ARGV)
diff --git a/features/steps/run_steps.rb b/features/steps/run_steps.rb
new file mode 100644
index 0000000..2a58281
--- /dev/null
+++ b/features/steps/run_steps.rb
@@ -0,0 +1,4 @@
+When /^I start uhwm$/ do
+  @process = run 'uhwm'
+  @interactive = @process
+end
diff --git a/features/steps/x_steps.rb b/features/steps/x_steps.rb
new file mode 100644
index 0000000..cb32a42
--- /dev/null
+++ b/features/steps/x_steps.rb
@@ -0,0 +1,10 @@
+Then /^it must connect to X display$/ do
+  Timeout.timeout(exit_timeout) do
+    loop do
+      break if assert_partial_output_interactive 'Connected to'
+      sleep 0.1
+    end
+  end
+  expect(`sockstat -u`.lines.grep /\s+ruby.+\s+#{@process.pid}/)
+    .not_to be_empty
+end
diff --git a/features/support/env.rb b/features/support/env.rb
index a0b2904..202e348 100644
--- a/features/support/env.rb
+++ b/features/support/env.rb
@@ -1,4 +1,12 @@
 require 'aruba/cucumber'
 require 'headless'
 
+module Aruba
+  class SpawnProcess
+    def pid
+      @process.pid
+    end
+  end
+end
+
 Headless.new.start
diff --git a/features/x/connection.feature b/features/x/connection.feature
new file mode 100644
index 0000000..87c6eef
--- /dev/null
+++ b/features/x/connection.feature
@@ -0,0 +1,5 @@
+Feature: connection to X server
+
+  Scenario: connects to X server
+    When I start uhwm
+    Then it must connect to X display
diff --git a/lib/uh/wm.rb b/lib/uh/wm.rb
new file mode 100644
index 0000000..16b9951
--- /dev/null
+++ b/lib/uh/wm.rb
@@ -0,0 +1,3 @@
+require 'uh'
+
+require 'uh/wm/cli'
diff --git a/lib/uh/wm/cli.rb b/lib/uh/wm/cli.rb
new file mode 100644
index 0000000..734ddf2
--- /dev/null
+++ b/lib/uh/wm/cli.rb
@@ -0,0 +1,15 @@
+module Uh
+  module WM
+    class CLI
+      class << self
+        def run! arguments
+          $stdout.sync = true
+          @display = Display.new
+          @display.open
+          puts "Connected to X server on `#{display}'"
+          sleep 8
+        end
+      end
+    end
+  end
+end