diff --git a/.github/auto-merge.yml b/.github/auto-merge.yml
new file mode 100644
index 0000000..ca80427
--- /dev/null
+++ b/.github/auto-merge.yml
@@ -0,0 +1,11 @@
+- match:
+    dependency_type: all
+    update_type: security:minor # includes patch updates!
+
+- match:
+    dependency_type: development
+    update_type: semver:minor # includes patch updates!
+
+- match:
+    dependency_type: production
+    update_type: semver:patch
diff --git a/.github/dependabot.yml b/.github/dependabot.yml
new file mode 100644
index 0000000..b401914
--- /dev/null
+++ b/.github/dependabot.yml
@@ -0,0 +1,12 @@
+version: 2
+
+updates:
+  - package-ecosystem: bundler
+    directory: "/"
+    schedule:
+      interval: daily
+      time: "03:00"
+      timezone: UTC
+    labels:
+      - dependencies
+      - ruby
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
new file mode 100644
index 0000000..378899e
--- /dev/null
+++ b/.github/workflows/ci.yml
@@ -0,0 +1,53 @@
+name: CI
+on:
+  - push
+jobs:
+  test:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v3
+
+      - name: Setup Ruby
+        uses: ruby/setup-ruby@v1
+        with:
+          ruby-version: 3.2
+          bundler-cache: true
+
+      - name: Run tests
+        env:
+          RAILS_ENV: test
+          CC_TEST_REPORTER_ID: true
+        run: bundle exec rspec --color --format RSpec::Github::Formatter --format progress --require spec_helper
+
+      - name: Upload coverage reports to Codecov
+        uses: codecov/codecov-action@v3
+        if: ${{ success() || failure() }}
+        with:
+          token: ${{ secrets.CODECOV_TOKEN }}
+
+  lint:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v3
+
+      - name: Setup Ruby
+        uses: ruby/setup-ruby@v1
+        with:
+          ruby-version: 3.2
+          bundler-cache: true
+
+      - name: Run rubocop
+        uses: reviewdog/action-rubocop@v2
+        with:
+          filter_mode: nofilter
+          rubocop_version: gemfile
+          rubocop_extensions: rubocop-rspec:gemfile rubocop-performance:gemfile
+          rubocop_flags: --parallel
+          reporter: github-check
+          skip_install: true
+          use_bundler: true
+          fail_on_error: true
diff --git a/.github/workflows/dependabot.yml b/.github/workflows/dependabot.yml
new file mode 100644
index 0000000..6121be9
--- /dev/null
+++ b/.github/workflows/dependabot.yml
@@ -0,0 +1,15 @@
+name: Dependabot Automerge Check
+on:
+  - pull_request_target
+
+jobs:
+  auto-merge:
+    if: github.actor == 'dependabot[bot]'
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v3
+      - name: Automerge dependabot dependencies
+        uses: ahmadnassri/action-dependabot-auto-merge@v2
+        with:
+          github-token: ${{ secrets.OPENHPI_BOT_TOKEN }}
diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
deleted file mode 100644
index 46d8be9..0000000
--- a/.github/workflows/main.yml
+++ /dev/null
@@ -1,27 +0,0 @@
-name: Ruby
-
-on:
-  push:
-    branches:
-      - master
-
-  pull_request:
-
-jobs:
-  build:
-    runs-on: ubuntu-latest
-    name: Ruby ${{ matrix.ruby }}
-    strategy:
-      matrix:
-        ruby:
-          - '3.2.0'
-
-    steps:
-    - uses: actions/checkout@v3
-    - name: Set up Ruby
-      uses: ruby/setup-ruby@v1
-      with:
-        ruby-version: ${{ matrix.ruby }}
-        bundler-cache: true
-    - name: Run the default task
-      run: bundle exec rake
diff --git a/.gitignore b/.gitignore
index f2f3a8c..31c95f2 100644
--- a/.gitignore
+++ b/.gitignore
@@ -6,8 +6,8 @@
 /pkg/
 /spec/reports/
 /tmp/
-
+/.idea/
+*.iml
 # rspec failure tracking
 .rspec_status
-
-.idea/
+.byebug_history
diff --git a/.rspec b/.rspec
index 34c5164..bd5e028 100644
--- a/.rspec
+++ b/.rspec
@@ -1,3 +1,3 @@
---format documentation
+--format progress
 --color
 --require spec_helper
diff --git a/.rubocop.yml b/.rubocop.yml
index 5d4e5a8..466bdfc 100644
--- a/.rubocop.yml
+++ b/.rubocop.yml
@@ -1,17 +1,22 @@
-require: rubocop-rspec
+require:
+  - rubocop-performance
+  - rubocop-rspec
+
+inherit_from:
+  - .rubocop/layout.yml
+  - .rubocop/lint.yml
+  - .rubocop/metrics.yml
+  - .rubocop/rspec.yml
+  - .rubocop/style.yml
 
 AllCops:
   TargetRubyVersion: 3.2
+  UseCache: True
   NewCops: enable
   Exclude:
-    - bin/*
-    - vendor/**/*
-
-Layout/LineLength:
-  Max: 120
-
-Layout/SpaceInsideHashLiteralBraces:
-  EnforcedStyle: no_space
-
-Style/Documentation:
-  Enabled: false
+    - 'bin/*'
+    - 'vendor/**/*'
+    # Ignore local files for faster processing
+    - 'tmp/**/*'
+    - 'out/**/*'
+    - 'coverage/**/*'
diff --git a/.rubocop/layout.yml b/.rubocop/layout.yml
new file mode 100644
index 0000000..77bda0d
--- /dev/null
+++ b/.rubocop/layout.yml
@@ -0,0 +1,39 @@
+# layout cop settings
+
+Layout/ArgumentAlignment:
+  EnforcedStyle: with_fixed_indentation
+
+Layout/CaseIndentation:
+  EnforcedStyle: end
+  SupportedStyles:
+    - case
+    - end
+  IndentOneStep: true
+
+Layout/FirstArrayElementIndentation:
+  EnforcedStyle: consistent
+
+Layout/FirstHashElementIndentation:
+  EnforcedStyle: consistent
+
+#
+# There are good reasons for key as well as table style.
+#
+Layout/HashAlignment:
+  Enabled: false
+
+Layout/LineLength:
+  Exclude:
+    - "spec/**/*"
+  Max: 140
+
+Layout/MultilineMethodCallIndentation:
+  EnforcedStyle: indented
+
+Layout/SpaceInsideBlockBraces:
+  EnforcedStyle: space
+  EnforcedStyleForEmptyBraces: no_space
+  SpaceBeforeBlockParameters: false
+
+Layout/SpaceInsideHashLiteralBraces:
+  EnforcedStyle: no_space
diff --git a/.rubocop/lint.yml b/.rubocop/lint.yml
new file mode 100644
index 0000000..6a50611
--- /dev/null
+++ b/.rubocop/lint.yml
@@ -0,0 +1,13 @@
+# lint cop settings
+
+#
+# False positives:
+#   * expect { something }.to change { something } often triggers this
+#
+Lint/AmbiguousBlockAssociation:
+  Exclude:
+    - "spec/**/*_spec.rb"
+
+Lint/EmptyBlock:
+  Exclude:
+    - 'spec/**/*'
diff --git a/.rubocop/metrics.yml b/.rubocop/metrics.yml
new file mode 100644
index 0000000..2c4ed47
--- /dev/null
+++ b/.rubocop/metrics.yml
@@ -0,0 +1,31 @@
+# metric cop settings
+
+Metrics/BlockLength:
+  Exclude:
+    # Common files with e.g. block based DSLs
+    - "spec/**/*"
+    - "**/*.rake"
+    - "Rakefile"
+    - "Guardfile"
+    - "**/*/Rakefile"
+    - 'dachsfisch.gemspec'
+  Max: 50
+
+Metrics/ClassLength:
+  Max: 150
+
+#
+# Often used as a proxy for complexity in a method, but causes many false
+# positives, e.g. when generating large, but simple, hashes.
+# We want to rely on CyclomaticComplexity instead.
+#
+Metrics/MethodLength:
+  Enabled: true
+  Max: 20
+
+#
+# This seems to be the cop that is closest to what we're interested in, which
+# is the kind of complexity that usually surfaces in deep nesting.
+#
+Metrics/CyclomaticComplexity:
+  Enabled: true
diff --git a/.rubocop/rails.yml b/.rubocop/rails.yml
new file mode 100644
index 0000000..2750b1d
--- /dev/null
+++ b/.rubocop/rails.yml
@@ -0,0 +1,4 @@
+# rails cop settings
+
+Rails:
+  Enabled: true
diff --git a/.rubocop/rspec.yml b/.rubocop/rspec.yml
new file mode 100644
index 0000000..06d7dd6
--- /dev/null
+++ b/.rubocop/rspec.yml
@@ -0,0 +1,20 @@
+# rspec cop settings
+
+RSpec:
+  Include:
+    - "spec/**/*_spec.rb"
+    - "spec/spec_helper.rb"
+    - "spec/dachsfisch_spec.rb"
+
+#
+# Too stupid. There are also views, templates, request specs etc.
+#
+RSpec/DescribeClass:
+  Exclude:
+    - "spec/custom_matchers/*"
+
+RSpec/MultipleMemoizedHelpers:
+  Enabled: false
+
+RSpec/NestedGroups:
+  Max: 5
diff --git a/.rubocop/style.yml b/.rubocop/style.yml
new file mode 100644
index 0000000..5aed184
--- /dev/null
+++ b/.rubocop/style.yml
@@ -0,0 +1,74 @@
+# style cop settings
+
+#
+# Nein. Period. Try to keep it English, but there *will* references using
+# unicode characters.
+#
+Style/AsciiComments:
+  Enabled: false
+
+#
+# Both styles or mixtures are reasonable
+#
+Style/ClassAndModuleChildren:
+  EnforcedStyle: compact
+  Enabled: false
+
+#
+# Maybe a bit uncommon for new devs and often results in heavily indented code
+# blocks.
+#
+Style/ConditionalAssignment:
+  Enabled: false
+
+#
+# Would be better but unlikely...
+#
+Style/Documentation:
+  Enabled: false
+
+#
+# Okay for conditions, but false positive in return statements (e.g. APIs)
+#
+Style/DoubleNegation:
+  Enabled: false
+
+#
+# Our default string token has the '%{value}' format
+#
+Style/FormatStringToken:
+  EnforcedStyle: template
+
+#
+# Far to often easy to read without.
+#
+Style/GuardClause:
+  Enabled: false
+
+#
+# IfUnlessModifier has no own line length but we do not want it to force 120
+# chars long modifiers just because we allow a few long lines.
+#
+Style/IfUnlessModifier:
+  Enabled: false
+
+#
+# Well, we do this. To often to disable them. Studid.
+#
+Style/MultilineBlockChain:
+  Enabled: false
+
+#Style/NumericPredicate:
+#  Enabled: false
+
+Style/RaiseArgs:
+  EnforcedStyle: compact
+
+Style/SignalException:
+  EnforcedStyle: only_raise
+
+Style/TrailingCommaInArrayLiteral:
+  EnforcedStyleForMultiline: comma
+
+Style/TrailingCommaInHashLiteral:
+  EnforcedStyleForMultiline: comma
diff --git a/Gemfile b/Gemfile
index 8adac45..a4373de 100644
--- a/Gemfile
+++ b/Gemfile
@@ -2,5 +2,5 @@
 
 source 'https://rubygems.org'
 
-# Specify your gem's dependencies in proforma.gemspec
+# Specify your gem's dependencies in dachsfisch.gemspec
 gemspec
diff --git a/Gemfile.lock b/Gemfile.lock
index f7c2d33..22d4689 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -8,56 +8,71 @@ GEM
   specs:
     ast (2.4.2)
     diff-lcs (1.5.0)
+    docile (1.4.0)
     json (2.6.3)
     parallel (1.22.1)
-    parser (3.2.0.0)
+    parser (3.2.2.0)
       ast (~> 2.4.1)
     rainbow (3.1.1)
     rake (13.0.6)
-    regexp_parser (2.6.2)
+    regexp_parser (2.7.0)
     rexml (3.2.5)
     rspec (3.12.0)
       rspec-core (~> 3.12.0)
       rspec-expectations (~> 3.12.0)
       rspec-mocks (~> 3.12.0)
-    rspec-core (3.12.0)
+    rspec-core (3.12.1)
       rspec-support (~> 3.12.0)
     rspec-expectations (3.12.2)
       diff-lcs (>= 1.2.0, < 2.0)
       rspec-support (~> 3.12.0)
-    rspec-mocks (3.12.3)
+    rspec-github (2.4.0)
+      rspec-core (~> 3.0)
+    rspec-mocks (3.12.5)
       diff-lcs (>= 1.2.0, < 2.0)
       rspec-support (~> 3.12.0)
     rspec-support (3.12.0)
-    rubocop (1.44.1)
+    rubocop (1.49.0)
       json (~> 2.3)
       parallel (~> 1.10)
       parser (>= 3.2.0.0)
       rainbow (>= 2.2.2, < 4.0)
       regexp_parser (>= 1.8, < 3.0)
       rexml (>= 3.2.5, < 4.0)
-      rubocop-ast (>= 1.24.1, < 2.0)
+      rubocop-ast (>= 1.28.0, < 2.0)
       ruby-progressbar (~> 1.7)
       unicode-display_width (>= 2.4.0, < 3.0)
-    rubocop-ast (1.24.1)
-      parser (>= 3.1.1.0)
+    rubocop-ast (1.28.0)
+      parser (>= 3.2.1.0)
     rubocop-capybara (2.17.1)
       rubocop (~> 1.41)
-    rubocop-rspec (2.18.1)
+    rubocop-performance (1.16.0)
+      rubocop (>= 1.7.0, < 2.0)
+      rubocop-ast (>= 0.4.0)
+    rubocop-rspec (2.19.0)
       rubocop (~> 1.33)
       rubocop-capybara (~> 2.17)
-    ruby-progressbar (1.11.0)
+    ruby-progressbar (1.13.0)
+    simplecov (0.22.0)
+      docile (~> 1.1)
+      simplecov-html (~> 0.11)
+      simplecov_json_formatter (~> 0.1)
+    simplecov-html (0.12.3)
+    simplecov_json_formatter (0.1.4)
     unicode-display_width (2.4.2)
 
 PLATFORMS
-  x86_64-linux
+  ruby
 
 DEPENDENCIES
   dachsfisch!
   rake (~> 13.0)
   rspec (~> 3.0)
-  rubocop (~> 1.21)
-  rubocop-rspec (~> 2.18.1)
+  rspec-github (~> 2.4.0)
+  rubocop (~> 1.49.0)
+  rubocop-performance (~> 1.16.0)
+  rubocop-rspec (~> 2.19.0)
+  simplecov (~> 0.22.0)
 
 BUNDLED WITH
-   2.4.3
+   2.4.10
diff --git a/Rakefile b/Rakefile
index 4964751..05fde3d 100644
--- a/Rakefile
+++ b/Rakefile
@@ -2,11 +2,10 @@
 
 require 'bundler/gem_tasks'
 require 'rspec/core/rake_task'
+require 'rubocop/rake_task'
 
 RSpec::Core::RakeTask.new(:spec)
 
-require 'rubocop/rake_task'
-
 RuboCop::RakeTask.new
 
 task default: %i[spec rubocop]
diff --git a/dachsfisch.gemspec b/dachsfisch.gemspec
index 6228089..ba44e07 100644
--- a/dachsfisch.gemspec
+++ b/dachsfisch.gemspec
@@ -12,7 +12,7 @@ Gem::Specification.new do |spec|
   spec.description = 'Implements a bidirectional converter for XML and JSON based on the badgerfish-specification'
   spec.homepage = 'https://github.com/openHPI/dachsfisch'
   spec.license = 'MIT'
-  spec.required_ruby_version = '>= 3.2.0'
+  spec.required_ruby_version = '>= 3.2'
 
   # spec.metadata["allowed_push_host"] = "TODO: Set to your gem server 'https://example.com'"
 
@@ -27,13 +27,18 @@ Gem::Specification.new do |spec|
       (f == __FILE__) || f.match(%r{\A(?:(?:bin|test|spec|features)/|\.(?:git|circleci)|appveyor)})
     end
   end
+
   spec.bindir = 'exe'
-  spec.executables = spec.files.grep(%r{\Aexe/}) { |f| File.basename(f) }
+  spec.executables = spec.files.grep(%r{\Aexe/}) {|f| File.basename(f) }
   spec.require_paths = ['lib']
 
   spec.add_development_dependency 'rake', '~> 13.0'
   spec.add_development_dependency 'rspec', '~> 3.0'
-  spec.add_development_dependency 'rubocop', '~> 1.21'
-  spec.add_development_dependency 'rubocop-rspec', '~> 2.18.1'
+  spec.add_development_dependency 'rspec-github', '~> 2.4.0'
+  spec.add_development_dependency 'rubocop', '~> 1.49.0'
+  spec.add_development_dependency 'rubocop-performance', '~> 1.16.0'
+  spec.add_development_dependency 'rubocop-rspec', '~> 2.19.0'
+  spec.add_development_dependency 'simplecov', '~> 0.22.0'
+
   spec.metadata['rubygems_mfa_required'] = 'true'
 end
diff --git a/spec/spec_helper.rb b/spec/spec_helper.rb
index 0337692..1d078f4 100644
--- a/spec/spec_helper.rb
+++ b/spec/spec_helper.rb
@@ -1,5 +1,8 @@
 # frozen_string_literal: true
 
+require 'simplecov'
+SimpleCov.start
+
 require 'dachsfisch'
 
 RSpec.configure do |config|