diff --git a/extra/hanami_app/Makefile b/extra/hanami_app/Makefile
new file mode 100644
index 0000000..941f010
--- /dev/null
+++ b/extra/hanami_app/Makefile
@@ -0,0 +1,2 @@
+up:
+	rackup
diff --git a/extra/rails_app/app.rb b/extra/rails_app/app.rb
index 5f3ae03..0efe86d 100644
--- a/extra/rails_app/app.rb
+++ b/extra/rails_app/app.rb
@@ -7,7 +7,10 @@
 gemfile(true) do
   source 'https://rubygems.org'
 
-  gem 'rails', '~> 7'
+  gem 'rackup'
+  gem 'rails'
+  gem 'webrick'
+
   gem 'tiny_admin', path: '../../'
 end
 
@@ -29,4 +32,4 @@ class RailsApp < Rails::Application
 
 RailsApp.initialize!
 
-Rack::Server.new(app: RailsApp, Port: 3000).start if __FILE__ == $PROGRAM_NAME
+Rackup::Server.new(app: RailsApp, Port: 3000).start if __FILE__ == $PROGRAM_NAME
diff --git a/extra/roda_app/app.rb b/extra/roda_app/app.rb
index 3b73e6e..b2bbe32 100644
--- a/extra/roda_app/app.rb
+++ b/extra/roda_app/app.rb
@@ -9,6 +9,8 @@
 
   gem 'rackup'
   gem 'roda'
+  gem 'webrick'
+
   gem 'tiny_admin', path: '../../'
 end
 
diff --git a/extra/standalone_app/app.rb b/extra/standalone_app/app.rb
index 1f5aa74..bb5c72b 100644
--- a/extra/standalone_app/app.rb
+++ b/extra/standalone_app/app.rb
@@ -8,6 +8,7 @@
   source 'https://rubygems.org'
 
   gem 'rackup'
+  gem 'webrick'
 
   gem 'tiny_admin', path: '../../'
 end