diff --git a/.circleci/config.yml b/.circleci/config.yml
new file mode 100644
index 0000000..c7fbd00
--- /dev/null
+++ b/.circleci/config.yml
@@ -0,0 +1,281 @@
+---
+# ---------------------------------------------------------------------------------------------------------------------
+# CircleCI Snippets
+#
+# Reusable snippets are defined below this section. These are yaml fragments that can injected into the standard
+# CircleCI configuration, reducing the complexity of the entire block.
+# ---------------------------------------------------------------------------------------------------------------------
+version: 2.1
+
+# ---------------------------------------------------------------------------------------------------------------------
+# CircleCI Commands Configuration
+#
+# Commands are re-usable steps that can be shared across jobs. For example the installation of gems using bundler or
+# waiting on a database connection. By defining them inside the commands section, they can be invoked as any standard
+# command on the system, but will already be preconfigured. This allows us to keep the jobs definition small and clean
+# ---------------------------------------------------------------------------------------------------------------------
+commands:
+  install_dependencies:
+    description: "Installs the required OS packages to ensure all gems compile"
+    steps:
+      - run:
+          name: "Aptitude Install"
+          command: |
+            apt update
+            apt install -y --no-install-recommends libsqlite3-dev pkg-config
+  appraisal_install:
+    description: "Performs the bundler installation, relying on the CircleCI cache for performance"
+    parameters:
+      ruby-version:
+        type: string
+    steps:
+      - restore_cache:
+          keys:
+            - appraisal-cache-<< parameters.ruby-version >>-1.1-{{ checksum "is_it_ready.gemspec" }}
+      - run:
+          name: "Appraisal Install"
+          command: |
+            gem install bundler:1.17.3 --force
+            bundle config --local path vendor/bundle
+            bundle install --jobs 4 --retry 3
+            bundle exec appraisal install
+      - save_cache:
+          key: appraisal-cache-<< parameters.ruby-version >>-1.1-{{ checksum "is_it_ready.gemspec" }}
+          paths:
+            - vendor/bundle
+
+# ---------------------------------------------------------------------------------------------------------------------
+# CircleCI Job Configuration
+#
+# This section defines all the available jobs that can be executed inside a Workflow.
+# Think of a Job as a batch of tasks that need to be performed to setup the environment and perform a specific task
+# such as running RSpec, uploading the test results to CodeClimate etc.
+# ---------------------------------------------------------------------------------------------------------------------
+jobs:
+  tests:
+    parameters:
+      ruby-version:
+        type: string
+      gemfile:
+        type: string
+    docker:
+      - image: 916869144969.dkr.ecr.us-east-1.amazonaws.com/customink/ruby:focal-<< parameters.ruby-version >>
+        user: root
+        aws_auth:
+          aws_access_key_id: ${PRODUCTION_AWS_ACCESS_KEY_ID}
+          aws_secret_access_key: ${PRODUCTION_AWS_SECRET_ACCESS_KEY}
+        environment:
+          RAILS_ENV: test
+          RACK_ENV: test
+    steps:
+      - checkout
+      - install_dependencies
+      - appraisal_install:
+          ruby-version: << parameters.ruby-version >>
+      - run:
+          name: "Tests"
+          command: bundle exec appraisal << parameters.gemfile >> rake test
+      - store_artifacts:
+          path: ./coverage
+      - store_test_results:
+          path: ./test/reports
+      - store_artifacts:
+          path: ./test/reports
+  build_and_publish:
+    docker:
+      - image: 916869144969.dkr.ecr.us-east-1.amazonaws.com/customink/ruby:focal-3.0
+        aws_auth:
+          aws_access_key_id: ${PRODUCTION_AWS_ACCESS_KEY_ID}
+          aws_secret_access_key: ${PRODUCTION_AWS_SECRET_ACCESS_KEY}
+        user: root
+    steps:
+      - checkout
+      - run:
+          name: "Configure Rubygems"
+          command: |
+            mkdir ~/.gem
+            touch ~/.gem/credentials
+            echo "---" >> ~/.gem/credentials
+            echo ":github: Bearer $CINK_CIRCLE_CI_GITHUB_PACKAGES_TOKEN" >> ~/.gem/credentials
+            chmod 600 ~/.gem/credentials
+      - run:
+          name: "Gem build"
+          command: gem build is_it_up.gemspec
+      - run:
+          name: "Gem Push"
+          command: gem push --key github --host https://rubygems.pkg.github.com/customink is_it_up-*.gem
+
+# ---------------------------------------------------------------------------------------------------------------------
+# CircleCI Workflow Execution Order
+#
+# Here we define the Workflow, the order of the various jobs and their dependencies.
+# This allows us to decide whether to run certain tasks sequentially or run several of them in parallel.
+# ---------------------------------------------------------------------------------------------------------------------
+workflows:
+  version: 2.1
+  build-and-test:
+    jobs:
+      # Ruby 2.2
+      - tests:
+          name: "Ruby 2.2 with Ruby on Rails 3.2"
+          context: "customink"
+          gemfile: "rails32"
+          ruby-version: "2.2"
+      - tests:
+          name: "Ruby 2.2 with Ruby on Rails 4.0"
+          context: "customink"
+          gemfile: "rails40"
+          ruby-version: "2.2"
+      - tests:
+          name: "Ruby 2.2 with Ruby on Rails 4.1"
+          context: "customink"
+          gemfile: "rails41"
+          ruby-version: "2.2"
+      - tests:
+          name: "Ruby 2.2 with Ruby on Rails 4.2"
+          context: "customink"
+          gemfile: "rails42"
+          ruby-version: "2.2"
+      - tests:
+          name: "Ruby 2.2 with Ruby on Rails 5.0"
+          context: "customink"
+          gemfile: "rails50"
+          ruby-version: "2.2"
+      - tests:
+          name: "Ruby 2.2 with Ruby on Rails 5.1"
+          context: "customink"
+          gemfile: "rails51"
+          ruby-version: "2.2"
+      - tests:
+          name: "Ruby 2.2 with Ruby on Rails 5.2"
+          context: "customink"
+          gemfile: "rails52"
+          ruby-version: "2.2"
+      # Ruby 2.3
+      - tests:
+          name: "Ruby 2.3 with Ruby on Rails 5.0"
+          context: "customink"
+          gemfile: "rails50"
+          ruby-version: "2.3"
+      - tests:
+          name: "Ruby 2.3 with Ruby on Rails 5.1"
+          context: "customink"
+          gemfile: "rails51"
+          ruby-version: "2.3"
+      - tests:
+          name: "Ruby 2.3 with Ruby on Rails 5.2"
+          context: "customink"
+          gemfile: "rails52"
+          ruby-version: "2.3"
+      # Ruby 2.4
+      - tests:
+          name: "Ruby 2.4 with Ruby on Rails 5.0"
+          context: "customink"
+          gemfile: "rails50"
+          ruby-version: "2.4"
+      - tests:
+          name: "Ruby 2.4 with Ruby on Rails 5.1"
+          context: "customink"
+          gemfile: "rails51"
+          ruby-version: "2.4"
+      - tests:
+          name: "Ruby 2.4 with Ruby on Rails 5.2"
+          context: "customink"
+          gemfile: "rails52"
+          ruby-version: "2.4"
+      # Ruby 2.5
+      - tests:
+          name: "Ruby 2.5 with Ruby on Rails 5.1"
+          context: "customink"
+          gemfile: "rails51"
+          ruby-version: "2.5"
+      - tests:
+          name: "Ruby 2.5 with Ruby on Rails 5.2"
+          context: "customink"
+          gemfile: "rails52"
+          ruby-version: "2.5"
+      - tests:
+          name: "Ruby 2.5 with Ruby on Rails 6.0"
+          context: "customink"
+          gemfile: "rails60"
+          ruby-version: "2.5"
+      - tests:
+          name: "Ruby 2.5 with Ruby on Rails 6.1"
+          context: "customink"
+          gemfile: "rails61"
+          ruby-version: "2.5"
+      # Ruby 2.6
+      - tests:
+          name: "Ruby 2.6 with Ruby on Rails 5.2"
+          context: "customink"
+          gemfile: "rails52"
+          ruby-version: "2.6"
+      - tests:
+          name: "Ruby 2.6 with Ruby on Rails 6.0"
+          context: "customink"
+          gemfile: "rails60"
+          ruby-version: "2.6"
+      - tests:
+          name: "Ruby 2.6 with Ruby on Rails 6.1"
+          context: "customink"
+          gemfile: "rails61"
+          ruby-version: "2.6"
+      # Ruby 2.7
+      - tests:
+          name: "Ruby 2.7 with Ruby on Rails 6.0"
+          context: "customink"
+          gemfile: "rails60"
+          ruby-version: "2.7"
+      - tests:
+          name: "Ruby 2.7 with Ruby on Rails 6.1"
+          context: "customink"
+          gemfile: "rails61"
+          ruby-version: "2.7"
+      - tests:
+          name: "Ruby 2.7 with Ruby on Rails 7.0.0"
+          context: "customink"
+          gemfile: "rails70"
+          ruby-version: "2.7"
+      # Ruby 3.0
+      - tests:
+          name: "Ruby 3.0 with Ruby on Rails 7.0.0"
+          context: "customink"
+          gemfile: "rails70"
+          ruby-version: "3.0"
+      # Ruby 3.1
+      - tests:
+          name: "Ruby 3.1 with Ruby on Rails 7.0"
+          context: "customink"
+          gemfile: "rails7"
+          ruby-version: "3.1"
+      - build_and_publish:
+          context: "customink"
+          requires:
+            - "Ruby 2.2 with Ruby on Rails 3.2"
+            - "Ruby 2.2 with Ruby on Rails 4.0"
+            - "Ruby 2.2 with Ruby on Rails 4.1"
+            - "Ruby 2.2 with Ruby on Rails 4.2"
+            - "Ruby 2.2 with Ruby on Rails 5.0"
+            - "Ruby 2.2 with Ruby on Rails 5.1"
+            - "Ruby 2.2 with Ruby on Rails 5.2"
+            - "Ruby 2.3 with Ruby on Rails 5.0"
+            - "Ruby 2.3 with Ruby on Rails 5.1"
+            - "Ruby 2.3 with Ruby on Rails 5.2"
+            - "Ruby 2.4 with Ruby on Rails 5.1"
+            - "Ruby 2.4 with Ruby on Rails 5.2"
+            - "Ruby 2.5 with Ruby on Rails 5.1"
+            - "Ruby 2.5 with Ruby on Rails 5.2"
+            - "Ruby 2.5 with Ruby on Rails 6.0"
+            - "Ruby 2.5 with Ruby on Rails 6.1"
+            - "Ruby 2.6 with Ruby on Rails 5.2"
+            - "Ruby 2.6 with Ruby on Rails 6.0"
+            - "Ruby 2.6 with Ruby on Rails 6.1"
+            - "Ruby 2.7 with Ruby on Rails 6.0"
+            - "Ruby 2.7 with Ruby on Rails 6.1"
+            - "Ruby 2.7 with Ruby on Rails 7.0.0"
+            - "Ruby 3.0 with Ruby on Rails 7.0.0"
+            - "Ruby 3.1 with Ruby on Rails 7.0"
+          filters:
+            branches:
+              only:
+                - main
diff --git a/.gitignore b/.gitignore
index 1dfe31e..512b02c 100644
--- a/.gitignore
+++ b/.gitignore
@@ -5,3 +5,6 @@ test/dummy/db/*.sqlite3
 test/dummy/log/*.log
 test/dummy/tmp/
 test/dummy/.sass-cache
+gemfiles/
+vendor/
+Gemfile.lock
diff --git a/.ruby-version b/.ruby-version
new file mode 100644
index 0000000..0d3ad67
--- /dev/null
+++ b/.ruby-version
@@ -0,0 +1 @@
+2.2.10
diff --git a/Appraisals b/Appraisals
new file mode 100644
index 0000000..91115bc
--- /dev/null
+++ b/Appraisals
@@ -0,0 +1,75 @@
+# This is the Appraisals file that determines which specific gems should be tested based upon the selected
+# Ruby version and Ruby on Rails framework.
+# Because each of these configurations have their own requirements, we will build a compatibility matrix and
+# make sure that each step includes the correct version of Ruby on Rails, and freezes the dependencies to the
+# requirements of that version.
+
+# Ruby 2.2 will be used to test all EOL Ruby on Rails versions still in use by Custom Ink.
+# This is simply to provide a guarantee our code works against them until we can drop these versions.
+if ::Gem::Version.new(RUBY_VERSION) < ::Gem::Version.new('2.3.0')
+    appraise 'rails32' do
+        gem 'rails', '~> 3.2.0'
+        gem 'rake', '< 13'
+    end
+
+    appraise 'rails40' do
+        gem 'rails', '~> 4.0.0'
+        gem 'rake', '< 13'
+    end
+
+    appraise 'rails41' do
+        gem 'rails', '~> 4.1.0'
+        gem 'rake', '< 13'
+    end
+
+    appraise 'rails42' do
+        gem 'rails', '~> 4.2.0'
+        gem 'rake', '< 13'
+    end
+end
+
+if ::Gem::Version.new(RUBY_VERSION) < ::Gem::Version.new('2.5.0')
+    appraise 'rails50' do
+        gem 'rails', '~> 5.0.0'
+        gem 'rake', '< 13'
+    end
+end
+
+if ::Gem::Version.new(RUBY_VERSION) < ::Gem::Version.new('2.6.0')
+    appraise 'rails51' do
+        gem 'rails', '~> 5.1.0'
+        gem 'rake', '< 13'
+    end
+end
+
+if ::Gem::Version.new(RUBY_VERSION) < ::Gem::Version.new('2.7.0')
+    appraise 'rails52' do
+        gem 'rails', '~> 5.2.0'
+        gem 'rake', '< 13'
+    end
+end
+
+# For Ruby versions >= 2.5.0 and < 3.0 we can test all Rails 6
+if ::Gem::Version.new(RUBY_VERSION) >= ::Gem::Version.new('2.5.0') && ::Gem::Version.new(RUBY_VERSION) < ::Gem::Version.new('3.0.0')
+    appraise 'rails60' do
+        gem 'rails', '~> 6.0.0'
+    end
+
+    appraise 'rails61' do
+        gem 'rails', '~> 6.1.0'
+    end
+end
+
+# Ruby on Rails 7.0.0 recommends Ruby to be >= 2.7.0
+if ::Gem::Version.new(RUBY_VERSION) >= ::Gem::Version.new('2.7.0')
+    appraise 'rails70' do
+        gem 'rails', '7.0.0'
+    end
+end
+
+# Ruby on Rails 7.0.x recommend Ruby to be >= 3.1.0
+if ::Gem::Version.new(RUBY_VERSION) >= ::Gem::Version.new('3.1.0')
+    appraise 'rails7' do
+        gem 'rails', '~> 7.0.0'
+    end
+end
diff --git a/CHANGELOG.md b/CHANGELOG.md
new file mode 100644
index 0000000..5c43904
--- /dev/null
+++ b/CHANGELOG.md
@@ -0,0 +1,9 @@
+# Is It Ready? CHANGELOG
+
+## 0.0.2
+* Enabled the CircleCI Pipeline
+* Added the test matrix
+* Updated documentation
+
+## 0.0.1
+* Initial implementation
diff --git a/Gemfile b/Gemfile
index 3c136af..3ca4444 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,12 +1,24 @@
-source "https://rubygems.org"
+source 'https://rubygems.org'
 
 # Declare your gem's dependencies in is_it_ready.gemspec.
 # Bundler will treat runtime dependencies like base dependencies, and
 # development dependencies will be added by default to the :development group.
 gemspec
 
-# jquery-rails is used by the dummy application
-gem "jquery-rails"
+# On Ruby 2.2, the gem test-unit is not included anymore by default
+# For Rails 3.2, this is a required dependency, so ensure this is installed automatically for all
+# versions of Ruby that support Rails 3.2
+if ::Gem::Version.new(RUBY_VERSION) < ::Gem::Version.new('2.5.0')
+  gem 'test-unit', '~> 3.0'
+end
 
-# Required since Ruby 2.2
-gem 'test-unit', '~> 3.0'
+# These are testing dependencies for the CircleCI environment and our general test reporting.
+# They don't need to be inside the gemspec as they are specific to the CI, not the project.
+group :test do
+  gem 'appraisal'
+  gem 'minitest-ci', require: false
+  gem 'simplecov', require: false
+
+  # jquery-rails is used by the dummy application
+  gem 'jquery-rails'
+end
diff --git a/Gemfile.lock b/Gemfile.lock
deleted file mode 100644
index 557cad0..0000000
--- a/Gemfile.lock
+++ /dev/null
@@ -1,108 +0,0 @@
-PATH
-  remote: .
-  specs:
-    is_it_ready (0.0.1)
-      rails (~> 3.2.22.5)
-
-GEM
-  remote: https://rubygems.org/
-  specs:
-    actionmailer (3.2.22.5)
-      actionpack (= 3.2.22.5)
-      mail (~> 2.5.4)
-    actionpack (3.2.22.5)
-      activemodel (= 3.2.22.5)
-      activesupport (= 3.2.22.5)
-      builder (~> 3.0.0)
-      erubis (~> 2.7.0)
-      journey (~> 1.0.4)
-      rack (~> 1.4.5)
-      rack-cache (~> 1.2)
-      rack-test (~> 0.6.1)
-      sprockets (~> 2.2.1)
-    activemodel (3.2.22.5)
-      activesupport (= 3.2.22.5)
-      builder (~> 3.0.0)
-    activerecord (3.2.22.5)
-      activemodel (= 3.2.22.5)
-      activesupport (= 3.2.22.5)
-      arel (~> 3.0.2)
-      tzinfo (~> 0.3.29)
-    activeresource (3.2.22.5)
-      activemodel (= 3.2.22.5)
-      activesupport (= 3.2.22.5)
-    activesupport (3.2.22.5)
-      i18n (~> 0.6, >= 0.6.4)
-      multi_json (~> 1.0)
-    arel (3.0.3)
-    builder (3.0.4)
-    concurrent-ruby (1.1.10)
-    erubis (2.7.0)
-    hike (1.2.3)
-    i18n (0.9.5)
-      concurrent-ruby (~> 1.0)
-    journey (1.0.4)
-    jquery-rails (3.1.5)
-      railties (>= 3.0, < 5.0)
-      thor (>= 0.14, < 2.0)
-    json (1.8.6)
-    mail (2.5.5)
-      mime-types (~> 1.16)
-      treetop (~> 1.4.8)
-    mime-types (1.25.1)
-    minitest (5.15.0)
-    multi_json (1.15.0)
-    polyglot (0.3.5)
-    power_assert (2.0.1)
-    rack (1.4.7)
-    rack-cache (1.9.0)
-      rack (>= 0.4)
-    rack-ssl (1.3.4)
-      rack
-    rack-test (0.6.3)
-      rack (>= 1.0)
-    rails (3.2.22.5)
-      actionmailer (= 3.2.22.5)
-      actionpack (= 3.2.22.5)
-      activerecord (= 3.2.22.5)
-      activeresource (= 3.2.22.5)
-      activesupport (= 3.2.22.5)
-      bundler (~> 1.0)
-      railties (= 3.2.22.5)
-    railties (3.2.22.5)
-      actionpack (= 3.2.22.5)
-      activesupport (= 3.2.22.5)
-      rack-ssl (~> 1.3.2)
-      rake (>= 0.8.7)
-      rdoc (~> 3.4)
-      thor (>= 0.14.6, < 2.0)
-    rake (13.0.6)
-    rdoc (3.12.2)
-      json (~> 1.4)
-    sprockets (2.2.3)
-      hike (~> 1.2)
-      multi_json (~> 1.0)
-      rack (~> 1.0)
-      tilt (~> 1.1, != 1.3.0)
-    sqlite3 (1.3.13)
-    test-unit (3.5.3)
-      power_assert
-    thor (1.2.1)
-    tilt (1.4.1)
-    treetop (1.4.15)
-      polyglot
-      polyglot (>= 0.3.1)
-    tzinfo (0.3.61)
-
-PLATFORMS
-  ruby
-
-DEPENDENCIES
-  is_it_ready!
-  jquery-rails
-  minitest
-  sqlite3 (~> 1.3.5)
-  test-unit (~> 3.0)
-
-BUNDLED WITH
-   1.17.3
diff --git a/README.md b/README.md
index b9fa0c2..b170e5e 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,7 @@
 # Is It Ready?
 
+[![CircleCI](https://dl.circleci.com/status-badge/img/gh/customink/is_it_ready/tree/main.svg?style=svg)](https://dl.circleci.com/status-badge/redirect/gh/customink/is_it_ready/tree/main)
+
 A Ruby gem that adds a simple Rails engine to your application to see if it's ready to serve requests.
 The endpoint and mounting options are configurable using the standard Rails conventions.
 
@@ -10,6 +12,21 @@ and allows Kubernetes to add/remove applications from the load-balancer based up
 * Ruby `>= 2.2.0`
 * Ruby on Rails `>= 3.2.22.5`
 
+### Compatibility Matrix
+This Matrix provides an overview on which versions of Ruby are tested against which Ruby on Rails versions.
+These combinations are guaranteed to work, whereas other combinations might work but are not guaranteed.
+
+| Ruby Version | Rails `~> 3.2` | Rails `~> 4.0` | Rails `~> 4.1` | Rails `~> 4.2` | Rails `~> 5.0` | Rails `~> 5.1` | Rails `~> 5.2` | Rails `~> 6.0` | Rails `~> 6.1` | Rails 7.0.0 | Rails `~> 7.0` |
+|--------------|----------------|----------------|----------------|----------------|----------------|----------------|----------------|----------------|----------------|-------------|----------------|
+| `2.2`        | ☑️             | ☑️             | ☑️             | ☑️             | ☑️             | ☑️             | ☑️             | -              | -              | -           | -              |
+| `2.3`        | -              | -              | -              | -              | ☑️             | ☑️             | ☑️             | -              | -              | -           | -              | - |
+| `2.4`        | -              | -              | -              | -              | ☑️             | ☑️             | ☑️             | -              | -              | -           | -              | - |
+| `2.5`        | -              | -              | -              | -              | -              | ☑️             | ☑️             | ☑️             | ☑️             | -           | -              | - |
+| `2.6`        | -              | -              | -              | -              | -              | -              | ☑️             | ☑️             | ☑️             | -           | -              | - |
+| `2.7`        | -              | -              | -              | -              | -              | -              | -              | ☑️             | ☑️             | ☑️          | -              |
+| `3.0`        | -              | -              | -              | -              | -              | -              | -              | -              | -              | ☑️          | -              |
+| `3.1`        | -              | -              | -              | -              | -              | -              | -              | -              | -              | -           | ☑️             |
+
 ## Installation
 
 Add this line to your application's Gemfile:
@@ -26,6 +43,37 @@ And then execute:
 
 ## Usage
 
+Simply mount the engine in your `config/routes.rb` and the routes will be available under the given path.
+
+```ruby
+Rails.application.routes.draw do
+  mount IsItReady::Engine => "/is_it_ready"
+end
+```
+
+With the above snippet, the health check will be available under:
+
+* https://your-domain/is_it_ready
+* https://your-domain/is_it_ready/is_it_ready
+
+## Configuration
+
+Sometimes additional configuration might be required. For example when the endpoint is reserved in your application
+or conflicts with another plugin. In this case, creating an initializer under `config/initializers/is_it_ready.rb` can help.
+
+```ruby
+# Initializer example to overwrite specific settings for the gem, or to enable certain features.
+# 
+
+# Overwrite the endpoint that's used for listening to the required calls from the ReadinessProbe.
+# Setting this value, changes the second entry to be the path defined here, as well as the path under which
+# the application has been mounted:
+#   * https://your-domain/<mount-path>
+#   * https://your-domain/<mount-path>/something_else
+# This is more for cosmetic purposes, or when mountain multiple engines under the same endpoint with distinct routes.
+::IsItReady.endpoint = '/something_else'
+```
+
 ## Contributing
 
 1. Fork it (https://github.com/customink/is_it_ready/fork).
diff --git a/app/assets/config/manifest.js b/app/assets/config/manifest.js
new file mode 100644
index 0000000..bf0ee0b
--- /dev/null
+++ b/app/assets/config/manifest.js
@@ -0,0 +1,4 @@
+// Required for Rails 6+ and Sprockets
+//= link_tree ../images
+//= link_directory ../javascripts .js
+//= link_directory ../stylesheets .css
diff --git a/bin/console b/bin/console
new file mode 100755
index 0000000..d69c321
--- /dev/null
+++ b/bin/console
@@ -0,0 +1,14 @@
+#!/usr/bin/env ruby
+
+require 'bundler/setup'
+require 'is_it_ready'
+
+# You can add fixtures and/or initialization code here to make experimenting
+# with your gem easier. You can also use a different console, if you like.
+
+# (If you use this, don't forget to add pry to your Gemfile!)
+# require "pry"
+# Pry.start
+
+require 'irb'
+::IRB.start(__FILE__)
diff --git a/bin/setup b/bin/setup
new file mode 100755
index 0000000..1c6928a
--- /dev/null
+++ b/bin/setup
@@ -0,0 +1,9 @@
+#!/usr/bin/env bash
+set -euo pipefail
+IFS=$'\n\t'
+set -vx
+
+bundle config --local path vendor/bundle
+bundle install
+
+# Do any other automated setup that you need to do here
diff --git a/bin/test b/bin/test
new file mode 100755
index 0000000..1ad9db8
--- /dev/null
+++ b/bin/test
@@ -0,0 +1,10 @@
+#!/usr/bin/env sh
+set -e
+
+echo "== Running Appraisal Install =="
+
+bundle exec appraisal install
+
+echo "== Running tests =="
+
+bundle exec appraisal rake test
diff --git a/is_it_ready.gemspec b/is_it_ready.gemspec
index dce3c37..61c7dda 100644
--- a/is_it_ready.gemspec
+++ b/is_it_ready.gemspec
@@ -13,11 +13,26 @@ Gem::Specification.new do |s|
   s.summary     = "Rails Engine to verify whether application can serve traffic"
   s.description = "An internal tool used by Custom Ink to take application from the Kubernetes load-balancer"
 
+  # Specify the required version to ensure we keep up to date with releases and gem requirements
+  s.required_ruby_version = '>= 2.2.0'
+
+  # Ensure that people are actually using an up to date version of RubyGems
+  unless s.respond_to?(:metadata)
+    raise(::StandardError, 'RubyGems 2.0 or newer is required to protect against public gem pushes')
+  end
+
+  s.metadata['allowed_push_host'] = 'https://rubygems.pkg.github.com/customink'
+  s.metadata['homepage_uri'] = s.homepage
+  s.metadata['source_code_uri'] = 'https://github.com/customink/is_it_ready'
+  s.metadata['changelog_uri'] = 'https://github.com/customink/is_it_ready/CHANGELOG.md'
+  s.metadata['rubygems_mfa_required'] = 'true'
+
   s.files = Dir["{app,config,db,lib}/**/*"] + %w[MIT-LICENSE Rakefile README.md]
   s.test_files = Dir["test/**/*"]
 
-  s.add_dependency "rails", "~> 3.2.22.5"
+  s.add_dependency "rails"
 
-  s.add_development_dependency "sqlite3", '~> 1.3.5'
+  s.add_development_dependency "sqlite3"
   s.add_development_dependency "minitest"
+  s.add_development_dependency "bundler"
 end
diff --git a/lib/is_it_ready/version.rb b/lib/is_it_ready/version.rb
index 42cd4cc..0549d4e 100644
--- a/lib/is_it_ready/version.rb
+++ b/lib/is_it_ready/version.rb
@@ -1,5 +1,5 @@
 # frozen_string_literal: true
 
 module IsItReady
-  VERSION = '0.0.1'
+  VERSION = '0.0.2'
 end
diff --git a/test/dummy/app/assets/config/manifest.js b/test/dummy/app/assets/config/manifest.js
new file mode 100644
index 0000000..bf0ee0b
--- /dev/null
+++ b/test/dummy/app/assets/config/manifest.js
@@ -0,0 +1,4 @@
+// Required for Rails 6+ and Sprockets
+//= link_tree ../images
+//= link_directory ../javascripts .js
+//= link_directory ../stylesheets .css
diff --git a/test/dummy/config/application.rb b/test/dummy/config/application.rb
index 93b765e..c87c404 100644
--- a/test/dummy/config/application.rb
+++ b/test/dummy/config/application.rb
@@ -28,32 +28,6 @@ class Application < Rails::Application
     # The default locale is :en and all translations from config/locales/*.rb,yml are auto loaded.
     # config.i18n.load_path += Dir[Rails.root.join('my', 'locales', '*.{rb,yml}').to_s]
     # config.i18n.default_locale = :de
-
-    # Configure the default encoding used in templates for Ruby 1.9.
-    config.encoding = "utf-8"
-
-    # Configure sensitive parameters which will be filtered from the log file.
-    config.filter_parameters += [:password]
-
-    # Enable escaping HTML in JSON.
-    config.active_support.escape_html_entities_in_json = true
-
-    # Use SQL instead of Active Record's schema dumper when creating the database.
-    # This is necessary if your schema can't be completely dumped by the schema dumper,
-    # like if you have constraints or database-specific column types
-    # config.active_record.schema_format = :sql
-
-    # Enforce whitelist mode for mass assignment.
-    # This will create an empty whitelist of attributes available for mass-assignment for all models
-    # in your app. As such, your models will need to explicitly whitelist or blacklist accessible
-    # parameters by using an attr_accessible or attr_protected declaration.
-    config.active_record.whitelist_attributes = true
-
-    # Enable the asset pipeline
-    config.assets.enabled = true
-
-    # Version of your assets, change this if you want to expire all your assets
-    config.assets.version = '1.0'
   end
 end
 
diff --git a/test/dummy/config/environments/development.rb b/test/dummy/config/environments/development.rb
index 82c74d1..21f33a8 100644
--- a/test/dummy/config/environments/development.rb
+++ b/test/dummy/config/environments/development.rb
@@ -1,6 +1,9 @@
 Dummy::Application.configure do
   # Settings specified here will take precedence over those in config/application.rb
 
+  # Do not eager load the code in the development environment
+  config.eager_load = false
+
   # In the development environment your application's code is reloaded on
   # every request. This slows down response time but is perfect for development
   # since you don't have to restart the web server when you make code changes.
@@ -22,8 +25,10 @@
   # Only use best-standards-support built into browsers
   config.action_dispatch.best_standards_support = :builtin
 
-  # Raise exception on mass assignment protection for Active Record models
-  config.active_record.mass_assignment_sanitizer = :strict
+  if ::Gem::Version.new(::Rails.version) < ::Gem::Version.new('4.0.0')
+    # Raise exception on mass assignment protection for Active Record models
+    config.active_record.mass_assignment_sanitizer = :strict
+  end
 
   # Log the query plan for queries taking more than this (works
   # with SQLite, MySQL, and PostgreSQL)
diff --git a/test/dummy/config/environments/production.rb b/test/dummy/config/environments/production.rb
index bdac56a..18c1e3f 100644
--- a/test/dummy/config/environments/production.rb
+++ b/test/dummy/config/environments/production.rb
@@ -1,6 +1,9 @@
 Dummy::Application.configure do
   # Settings specified here will take precedence over those in config/application.rb
 
+  # Eager load all code
+  config.eager_load = true
+
   # Code is not reloaded between requests
   config.cache_classes = true
 
diff --git a/test/dummy/config/environments/test.rb b/test/dummy/config/environments/test.rb
index f1a4814..53e870c 100644
--- a/test/dummy/config/environments/test.rb
+++ b/test/dummy/config/environments/test.rb
@@ -1,6 +1,9 @@
 Dummy::Application.configure do
   # Settings specified here will take precedence over those in config/application.rb
 
+  # Do not eager load our code
+  config.eager_load = false
+
   # The test environment is used exclusively to run your application's
   # test suite. You never need to work with it otherwise. Remember that
   # your test database is "scratch space" for the test suite and is wiped
@@ -29,8 +32,10 @@
   # ActionMailer::Base.deliveries array.
   config.action_mailer.delivery_method = :test
 
-  # Raise exception on mass assignment protection for Active Record models
-  config.active_record.mass_assignment_sanitizer = :strict
+  if ::Gem::Version.new(::Rails.version) < ::Gem::Version.new('4.0.0')
+    # Raise exception on mass assignment protection for Active Record models
+    config.active_record.mass_assignment_sanitizer = :strict
+  end
 
   # Print deprecation notices to the stderr
   config.active_support.deprecation = :stderr