diff --git a/.circleci/config.yml b/.circleci/config.yml
new file mode 100644
index 0000000..b52fa97
--- /dev/null
+++ b/.circleci/config.yml
@@ -0,0 +1,55 @@
+ruby: &ruby
+  image: carwow/ruby-ci:2.6
+
+version: 2
+
+jobs:
+  bundle:
+    working_directory: ~/umbra
+    docker:
+      - *ruby
+    steps:
+      - checkout
+      - restore_cache:
+          keys:
+            - bundle-{{ checksum "Gemfile.lock" }}
+            - bundle-
+      - run: |
+          bundle config --local path vendor/bundle &&
+          bundle check || bundle install --jobs=4 --retry=3
+      - save_cache:
+          key: bundle-{{ checksum "Gemfile.lock" }}
+          paths: [~/umbra/vendor/bundle]
+      - persist_to_workspace:
+          root: '~'
+          paths: [umbra]
+
+  rubocop:
+    working_directory: ~/umbra
+    docker:
+      - *ruby
+    steps:
+      - attach_workspace:
+          at: '~'
+      - run: bundle exec rubocop
+
+  tests:
+    working_directory: ~/umbra
+    docker:
+      - *ruby
+    steps:
+      - attach_workspace:
+          at: '~'
+      - run: |
+          bundle exec rspec
+
+workflows:
+  version: 2
+  build:
+    jobs:
+      - bundle
+      - rubocop:
+          requires: [bundle]
+      - tests:
+          requires: [bundle]
+
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..b04a8c8
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,11 @@
+/.bundle/
+/.yardoc
+/_yardoc/
+/coverage/
+/doc/
+/pkg/
+/spec/reports/
+/tmp/
+
+# rspec failure tracking
+.rspec_status
diff --git a/.rspec b/.rspec
new file mode 100644
index 0000000..34c5164
--- /dev/null
+++ b/.rspec
@@ -0,0 +1,3 @@
+--format documentation
+--color
+--require spec_helper
diff --git a/.rubocop.yml b/.rubocop.yml
new file mode 100644
index 0000000..856c871
--- /dev/null
+++ b/.rubocop.yml
@@ -0,0 +1,3 @@
+inherit_gem:
+  carwow_rubocop:
+    - default.yml
diff --git a/Gemfile b/Gemfile
new file mode 100644
index 0000000..01bec52
--- /dev/null
+++ b/Gemfile
@@ -0,0 +1,6 @@
+# frozen_string_literal: true
+
+source 'https://rubygems.org'
+
+# Specify your gem's dependencies in umbra.gemspec
+gemspec
diff --git a/Gemfile.lock b/Gemfile.lock
new file mode 100644
index 0000000..1a7e7f2
--- /dev/null
+++ b/Gemfile.lock
@@ -0,0 +1,71 @@
+PATH
+  remote: .
+  specs:
+    umbra (0.1.0)
+      multi_json (~> 1.13)
+      oj (~> 3.9)
+      redis (~> 4.1)
+      typhoeus (~> 1.3)
+
+GEM
+  remote: https://rubygems.org/
+  specs:
+    ast (2.4.0)
+    carwow_rubocop (3.0.3)
+      rubocop (>= 0.68)
+      rubocop-performance
+      rubocop-rspec
+    diff-lcs (1.3)
+    ethon (0.12.0)
+      ffi (>= 1.3.0)
+    ffi (1.11.1)
+    jaro_winkler (1.5.3)
+    multi_json (1.13.1)
+    oj (3.9.1)
+    parallel (1.17.0)
+    parser (2.6.4.1)
+      ast (~> 2.4.0)
+    rainbow (3.0.0)
+    rake (10.5.0)
+    redis (4.1.3)
+    rspec (3.8.0)
+      rspec-core (~> 3.8.0)
+      rspec-expectations (~> 3.8.0)
+      rspec-mocks (~> 3.8.0)
+    rspec-core (3.8.2)
+      rspec-support (~> 3.8.0)
+    rspec-expectations (3.8.4)
+      diff-lcs (>= 1.2.0, < 2.0)
+      rspec-support (~> 3.8.0)
+    rspec-mocks (3.8.1)
+      diff-lcs (>= 1.2.0, < 2.0)
+      rspec-support (~> 3.8.0)
+    rspec-support (3.8.2)
+    rubocop (0.74.0)
+      jaro_winkler (~> 1.5.1)
+      parallel (~> 1.10)
+      parser (>= 2.6)
+      rainbow (>= 2.2.2, < 4.0)
+      ruby-progressbar (~> 1.7)
+      unicode-display_width (>= 1.4.0, < 1.7)
+    rubocop-performance (1.4.1)
+      rubocop (>= 0.71.0)
+    rubocop-rspec (1.35.0)
+      rubocop (>= 0.60.0)
+    ruby-progressbar (1.10.1)
+    typhoeus (1.3.1)
+      ethon (>= 0.9.0)
+    unicode-display_width (1.6.0)
+
+PLATFORMS
+  ruby
+
+DEPENDENCIES
+  bundler (~> 2.0)
+  carwow_rubocop
+  rake (~> 10.0)
+  rspec (~> 3.0)
+  umbra!
+
+BUNDLED WITH
+   2.0.2
diff --git a/LICENSE.txt b/LICENSE.txt
new file mode 100644
index 0000000..73d5497
--- /dev/null
+++ b/LICENSE.txt
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2019 Christian Gregg
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..c6f9247
--- /dev/null
+++ b/README.md
@@ -0,0 +1,26 @@
+# umbra - A shadow requesting tool for rack-based apps
+
+
+```ruby
+gem 'umbra'
+```
+
+And then execute:
+
+    $ bundle
+
+Or install it yourself as:
+
+    $ gem install umbra
+
+## Usage
+
+TODO: Write usage instructions here
+
+## Contributing
+
+Bug reports and pull requests are welcome on GitHub at https://github.com/carwow/umbra.
+
+## License
+
+The gem is available as open source under the terms of the [MIT License](https://opensource.org/licenses/MIT).
diff --git a/Rakefile b/Rakefile
new file mode 100644
index 0000000..82bb534
--- /dev/null
+++ b/Rakefile
@@ -0,0 +1,8 @@
+# frozen_string_literal: true
+
+require 'bundler/gem_tasks'
+require 'rspec/core/rake_task'
+
+RSpec::Core::RakeTask.new(:spec)
+
+task default: :spec
diff --git a/lib/umbra.rb b/lib/umbra.rb
new file mode 100644
index 0000000..f1ba682
--- /dev/null
+++ b/lib/umbra.rb
@@ -0,0 +1,8 @@
+# frozen_string_literal: true
+
+require 'umbra/version'
+
+module Umbra
+  class Error < StandardError; end
+  # Your code goes here...
+end
diff --git a/lib/umbra/version.rb b/lib/umbra/version.rb
new file mode 100644
index 0000000..0acf453
--- /dev/null
+++ b/lib/umbra/version.rb
@@ -0,0 +1,5 @@
+# frozen_string_literal: true
+
+module Umbra
+  VERSION = '0.1.0'
+end
diff --git a/spec/spec_helper.rb b/spec/spec_helper.rb
new file mode 100644
index 0000000..89ce88a
--- /dev/null
+++ b/spec/spec_helper.rb
@@ -0,0 +1,16 @@
+# frozen_string_literal: true
+
+require 'bundler/setup'
+require 'umbra'
+
+RSpec.configure do |config|
+  # Enable flags like --only-failures and --next-failure
+  config.example_status_persistence_file_path = '.rspec_status'
+
+  # Disable RSpec exposing methods globally on `Module` and `main`
+  config.disable_monkey_patching!
+
+  config.expect_with :rspec do |c|
+    c.syntax = :expect
+  end
+end
diff --git a/spec/umbra_spec.rb b/spec/umbra_spec.rb
new file mode 100644
index 0000000..77866a0
--- /dev/null
+++ b/spec/umbra_spec.rb
@@ -0,0 +1,7 @@
+# frozen_string_literal: true
+
+RSpec.describe Umbra do
+  it 'has a version number' do
+    expect(Umbra::VERSION).not_to be nil
+  end
+end
diff --git a/umbra.gemspec b/umbra.gemspec
new file mode 100644
index 0000000..544fc5d
--- /dev/null
+++ b/umbra.gemspec
@@ -0,0 +1,37 @@
+# frozen_string_literal: true
+
+lib = File.expand_path('lib', __dir__)
+$LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
+require 'umbra/version'
+
+Gem::Specification.new do |spec|
+  spec.name          = 'umbra'
+  spec.version       = Umbra::VERSION
+  spec.authors       = ['carwow Developers']
+  spec.email         = ['developers@carwow.co.uk']
+
+  spec.summary       = 'A shadow requesting library for rack based applications'
+  spec.homepage      = 'https://github.com/carwow/umbra'
+  spec.license       = 'MIT'
+
+  spec.metadata['allowed_push_host'] = 'https://rubygems.org'
+  spec.metadata['homepage_uri'] = spec.homepage
+  spec.metadata['source_code_uri'] = spec.homepage
+
+  # Specify which files should be added to the gem when it is released.
+  # The `git ls-files -z` loads the files in the RubyGem that have been added into git.
+  spec.files = Dir.chdir(File.expand_path(__dir__)) do
+    `git ls-files -z`.split("\x0").reject { |f| f.match(%r{^(test|spec|features)/}) }
+  end
+  spec.require_paths = ['lib']
+
+  spec.add_development_dependency 'bundler', '~> 2.0'
+  spec.add_development_dependency 'carwow_rubocop'
+  spec.add_development_dependency 'rake', '~> 10.0'
+  spec.add_development_dependency 'rspec', '~> 3.0'
+
+  spec.add_dependency 'typhoeus', '~> 1.3'
+  spec.add_dependency 'redis', '~> 4.1'
+  spec.add_dependency 'multi_json', '~> 1.13'
+  spec.add_dependency 'oj', '~> 3.9'
+end