diff --git a/extra/hanami_app/Gemfile b/extra/hanami_app/Gemfile
deleted file mode 100644
index 005c85e..0000000
--- a/extra/hanami_app/Gemfile
+++ /dev/null
@@ -1,11 +0,0 @@
-# frozen_string_literal: true
-
-source 'https://rubygems.org'
-git_source(:github) { |repo| "https://github.com/#{repo}.git" }
-
-gem 'rack'
-gem 'webrick'
-
-gem 'hanami-router'
-
-gem 'tiny_admin', path: '../../'
diff --git a/extra/hanami_app/app.rb b/extra/hanami_app/app.rb
deleted file mode 100644
index 1e10a96..0000000
--- a/extra/hanami_app/app.rb
+++ /dev/null
@@ -1,14 +0,0 @@
-# frozen_string_literal: true
-
-require 'bundler'
-Bundler.require
-
-require_relative '../tiny_admin_settings'
-
-app = Hanami::Router.new do
-  root to: ->(_env) { [200, {}, ['Root page']] }
-
-  mount TinyAdmin::Router, at: '/admin'
-end
-
-Rack::Server.new(app: app, Port: 3000).start if __FILE__ == $PROGRAM_NAME
diff --git a/extra/hanami_app/config.ru b/extra/hanami_app/config.ru
new file mode 100644
index 0000000..5aab0f1
--- /dev/null
+++ b/extra/hanami_app/config.ru
@@ -0,0 +1,26 @@
+# frozen_string_literal: true
+
+# => rackup -p 3000
+
+require 'bundler/inline'
+
+gemfile(true) do
+  source 'https://rubygems.org'
+
+  gem 'hanami-router'
+  gem 'webrick'
+
+  gem 'tiny_admin', path: '../../'
+end
+
+require 'hanami/router'
+
+require_relative '../tiny_admin_settings'
+
+app = Hanami::Router.new do
+  root to: ->(_env) { [200, {}, ['Root page - go to /admin for TinyAdmin']] }
+
+  mount TinyAdmin::Router, at: '/admin'
+end
+
+run app
diff --git a/extra/rails_app/Gemfile b/extra/rails_app/Gemfile
deleted file mode 100644
index 7a455aa..0000000
--- a/extra/rails_app/Gemfile
+++ /dev/null
@@ -1,9 +0,0 @@
-# frozen_string_literal: true
-
-source 'https://rubygems.org'
-git_source(:github) { |repo| "https://github.com/#{repo}.git" }
-
-gem 'rails', '~> 7.0'
-gem 'webrick'
-
-gem 'tiny_admin', path: '../../'
diff --git a/extra/rails_app/app.rb b/extra/rails_app/app.rb
index 90fdd52..5f3ae03 100644
--- a/extra/rails_app/app.rb
+++ b/extra/rails_app/app.rb
@@ -1,18 +1,29 @@
 # frozen_string_literal: true
 
-require 'bundler'
-Bundler.require
+# => ruby app.rb
+
+require 'bundler/inline'
+
+gemfile(true) do
+  source 'https://rubygems.org'
+
+  gem 'rails', '~> 7'
+  gem 'tiny_admin', path: '../../'
+end
 
 require 'action_controller/railtie'
 require_relative '../tiny_admin_settings'
 
 class RailsApp < Rails::Application
   routes.append do
-    root to: proc { [200, {}, ['Root page']] }
+    root to: proc { [200, {}, ['Root page - go to /admin for TinyAdmin']] }
 
     mount TinyAdmin::Router => '/admin'
   end
 
+  config.action_dispatch.show_exceptions = :none
+  config.active_support.cache_format_version = 7.1
+  config.consider_all_requests_local = false
   config.eager_load = false
 end
 
diff --git a/extra/roda_app/Gemfile b/extra/roda_app/Gemfile
deleted file mode 100644
index 651c01b..0000000
--- a/extra/roda_app/Gemfile
+++ /dev/null
@@ -1,12 +0,0 @@
-# frozen_string_literal: true
-
-source 'https://rubygems.org'
-git_source(:github) { |repo| "https://github.com/#{repo}.git" }
-
-gem 'rack'
-gem 'rackup'
-gem 'webrick'
-
-gem 'roda'
-
-gem 'tiny_admin', path: '../../'
diff --git a/extra/roda_app/app.rb b/extra/roda_app/app.rb
index 4fc2a32..3b73e6e 100644
--- a/extra/roda_app/app.rb
+++ b/extra/roda_app/app.rb
@@ -1,14 +1,23 @@
 # frozen_string_literal: true
 
-require 'bundler'
-Bundler.require
+# => ruby app.rb
+
+require 'bundler/inline'
+
+gemfile(true) do
+  source 'https://rubygems.org'
+
+  gem 'rackup'
+  gem 'roda'
+  gem 'tiny_admin', path: '../../'
+end
 
 require_relative '../tiny_admin_settings'
 
 class RodaApp < Roda
   route do |r|
     r.root do
-      'Root page'
+      'Root page - go to /admin for TinyAdmin'
     end
 
     r.on 'admin' do
diff --git a/extra/sample_features_app/app.rb b/extra/sample_features_app/app.rb
index 39cacd2..3105bcf 100644
--- a/extra/sample_features_app/app.rb
+++ b/extra/sample_features_app/app.rb
@@ -1,5 +1,7 @@
 # frozen_string_literal: true
 
+# => bundle exec ruby app.rb
+
 require 'bundler'
 Bundler.require
 
diff --git a/extra/standalone_app/Gemfile b/extra/standalone_app/Gemfile
deleted file mode 100644
index 1d49483..0000000
--- a/extra/standalone_app/Gemfile
+++ /dev/null
@@ -1,10 +0,0 @@
-# frozen_string_literal: true
-
-source 'https://rubygems.org'
-git_source(:github) { |repo| "https://github.com/#{repo}.git" }
-
-gem 'rack'
-gem 'rackup'
-gem 'webrick'
-
-gem 'tiny_admin', path: '../../'
diff --git a/extra/standalone_app/app.rb b/extra/standalone_app/app.rb
index 72120ab..1f5aa74 100644
--- a/extra/standalone_app/app.rb
+++ b/extra/standalone_app/app.rb
@@ -1,7 +1,16 @@
 # frozen_string_literal: true
 
-require 'bundler'
-Bundler.require
+# => ruby app.rb
+
+require 'bundler/inline'
+
+gemfile(true) do
+  source 'https://rubygems.org'
+
+  gem 'rackup'
+
+  gem 'tiny_admin', path: '../../'
+end
 
 require_relative '../tiny_admin_settings'