diff --git a/Gemfile b/Gemfile
index cb6a04e..8d1d891 100644
--- a/Gemfile
+++ b/Gemfile
@@ -3,7 +3,14 @@ source 'https://rubygems.org'
 # Specify your gem's dependencies in pageflow-vr.gemspec
 gemspec
 
-group :development, :test do
-  # Help Bundler resolve dependencies
-  gem 'rails', '~> 5.2.0'
+if ENV['PAGEFLOW_DEPENDENCIES'] == 'experimental'
+  git 'https://github.com/codevise/pageflow', branch: 'edge', glob: '**/*.gemspec' do
+    gem 'pageflow'
+    gem 'pageflow-support'
+  end
+else
+  group :development, :test do
+    # Help Bundler resolve dependencies
+    gem 'rails', '~> 5.2.0'
+  end
 end
diff --git a/lib/pageflow-vr.rb b/lib/pageflow/vr.rb
similarity index 95%
rename from lib/pageflow-vr.rb
rename to lib/pageflow/vr.rb
index 80989fd..68c07cd 100644
--- a/lib/pageflow-vr.rb
+++ b/lib/pageflow/vr.rb
@@ -1,4 +1,5 @@
 require 'pageflow/vr/engine'
+require 'pageflow/vr/version'
 
 module Pageflow
   module Vr
diff --git a/lib/pageflow/vr/engine.rb b/lib/pageflow/vr/engine.rb
index c3b7473..c722325 100644
--- a/lib/pageflow/vr/engine.rb
+++ b/lib/pageflow/vr/engine.rb
@@ -3,7 +3,22 @@ module Vr
     class Engine < Rails::Engine
       isolate_namespace Pageflow::Vr
 
-      config.autoload_paths << File.join(config.root, 'lib')
+      if Rails.respond_to?(:autoloaders)
+        lib = root.join('lib')
+
+        config.autoload_paths << lib
+        config.eager_load_paths << lib
+
+        initializer 'pageflow_vr.autoloading' do
+          Rails.autoloaders.main.ignore(
+            lib.join('pageflow/vr/version.rb'),
+            lib.join('generators')
+          )
+        end
+      else
+        config.autoload_paths << File.join(config.root, 'lib')
+      end
+
       config.i18n.load_path += Dir[config.root.join('config', 'locales', '**', '*.yml').to_s]
 
       initializer "pageflow-vr.add_watchable_files", group: :all do |app|
diff --git a/pageflow-vr.gemspec b/pageflow-vr.gemspec
index 44abbc4..14b4858 100644
--- a/pageflow-vr.gemspec
+++ b/pageflow-vr.gemspec
@@ -15,7 +15,7 @@ Gem::Specification.new do |spec|
   spec.files         = `git ls-files -z`.split("\x0").reject { |f| f.match(%r{^(test|spec|features)/}) }
   spec.require_paths = ['lib']
 
-  spec.required_ruby_version = '~> 2.1'
+  spec.required_ruby_version = '>= 2.1'
 
   spec.add_dependency 'pageflow', ['>= 12.0', '< 17']
   spec.add_dependency 'pageflow-public-i18n', '~> 1.10'
@@ -23,6 +23,12 @@ Gem::Specification.new do |spec|
   spec.add_development_dependency 'bundler', ['>= 1.12', '< 3']
   spec.add_development_dependency 'pageflow-support', ['>= 14', '< 17']
   spec.add_development_dependency 'rake', '~> 12.0'
-  spec.add_development_dependency 'rspec-rails', '~> 3.0'
+
+  if ENV['PAGEFLOW_DEPENDENCIES'] == 'experimental'
+    spec.add_development_dependency 'rspec-rails', '~> 6.0'
+  else
+    spec.add_development_dependency 'rspec-rails', '~> 3.0'
+  end
+
   spec.add_development_dependency 'semmy', '~> 1.0'
 end