diff --git a/.github/dependabot.yml b/.github/dependabot.yml
new file mode 100644
index 0000000..46f1c90
--- /dev/null
+++ b/.github/dependabot.yml
@@ -0,0 +1,13 @@
+version: 2
+updates:
+  - package-ecosystem: bundler
+    directory: "/"
+    schedule:
+      interval: "daily"
+    open-pull-requests-limit: 10
+    ignore:
+      - dependency-name: "rubocop-lts"
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "daily"
diff --git a/.github/workflows/codeql-analysis.yml b/.github/workflows/codeql-analysis.yml
new file mode 100644
index 0000000..502c2a0
--- /dev/null
+++ b/.github/workflows/codeql-analysis.yml
@@ -0,0 +1,70 @@
+# For most projects, this workflow file will not need changing; you simply need
+# to commit it to your repository.
+#
+# You may wish to alter this file to override the set of languages analyzed,
+# or to provide custom queries or build logic.
+#
+# ******** NOTE ********
+# We have attempted to detect the languages in your repository. Please check
+# the `language` matrix defined below to confirm you have the correct set of
+# supported CodeQL languages.
+#
+name: "CodeQL"
+
+on:
+  push:
+    branches: [ main, "*-stable" ]
+  pull_request:
+    # The branches below must be a subset of the branches above
+    branches: [ main, "*-stable" ]
+  schedule:
+    - cron: '35 1 * * 5'
+
+jobs:
+  analyze:
+    name: Analyze
+    runs-on: ubuntu-latest
+    permissions:
+      actions: read
+      contents: read
+      security-events: write
+
+    strategy:
+      fail-fast: false
+      matrix:
+        language: [ 'ruby' ]
+        # CodeQL supports [ 'cpp', 'csharp', 'go', 'java', 'javascript', 'python', 'ruby' ]
+        # Learn more about CodeQL language support at https://git.io/codeql-language-support
+
+    steps:
+    - name: Checkout repository
+      uses: actions/checkout@v4
+
+    # Initializes the CodeQL tools for scanning.
+    - name: Initialize CodeQL
+      uses: github/codeql-action/init@v3
+      with:
+        languages: ${{ matrix.language }}
+        # If you wish to specify custom queries, you can do so here or in a config file.
+        # By default, queries listed here will override any specified in a config file.
+        # Prefix the list here with "+" to use these queries and those in the config file.
+        # queries: ./path/to/local/query, your-org/your-repo/queries@main
+
+    # Autobuild attempts to build any compiled languages  (C/C++, C#, or Java).
+    # If this step fails, then you should remove it and run the build manually (see below)
+    - name: Autobuild
+      uses: github/codeql-action/autobuild@v3
+
+    # ℹ️ Command-line programs to run using the OS shell.
+    # 📚 https://git.io/JvXDl
+
+    # ✏️ If the Autobuild fails above, remove it and uncomment the following three lines
+    #    and modify them (or add more) to build your code if your project
+    #    uses a compiled language
+
+    #- run: |
+    #   make bootstrap
+    #   make release
+
+    - name: Perform CodeQL Analysis
+      uses: github/codeql-action/analyze@v3
diff --git a/.github/workflows/coverage.yml b/.github/workflows/coverage.yml
new file mode 100644
index 0000000..5344a4e
--- /dev/null
+++ b/.github/workflows/coverage.yml
@@ -0,0 +1,120 @@
+name: Test Coverage
+
+env:
+  K_SOUP_COV_MIN_BRANCH: 80
+  K_SOUP_COV_MIN_LINE: 91
+  K_SOUP_COV_MIN_HARD: true
+  K_SOUP_COV_DO: true
+  K_SOUP_COV_COMMAND_NAME: "RSpec Coverage"
+
+on:
+  push:
+    branches:
+      - 'main'
+    tags:
+      - '!*' # Do not execute on tags
+  pull_request:
+    branches:
+      - '*'
+  # Allow manually triggering the workflow.
+  workflow_dispatch:
+
+permissions:
+  contents: read
+
+# Cancels all previous workflow runs for the same branch that have not yet completed.
+concurrency:
+  # The concurrency group contains the workflow name and the branch name.
+  group: "${{ github.workflow }}-${{ github.ref }}"
+  cancel-in-progress: true
+
+jobs:
+  test:
+    name: Specs with Coverage - Ruby ${{ matrix.ruby }} ${{ matrix.name_extra || '' }}
+    if: "!contains(github.event.commits[0].message, '[ci skip]') && !contains(github.event.commits[0].message, '[skip ci]')"
+    env: # $BUNDLE_GEMFILE must be set at job level, so it is set for all steps
+      BUNDLE_GEMFILE: ${{ github.workspace }}/gemfiles/${{ matrix.gemfile }}.gemfile
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          # Coverage
+          - ruby: "3.4"
+            appraisal: "coverage"
+            exec_cmd: "turbo_tests -n4"
+            gemfile: "Appraisal.root"
+            rubygems: latest
+            bundler: latest
+
+    steps:
+      - uses: amancevice/setup-code-climate@v2
+        name: CodeClimate Install
+        if: ${{ github.event_name != 'pull_request' }}
+        with:
+          cc_test_reporter_id: ${{ secrets.CC_TEST_REPORTER_ID }}
+
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup Ruby & RubyGems
+        uses: ruby/setup-ruby@v1
+        with:
+          ruby-version: "${{ matrix.ruby }}"
+          rubygems: "${{ matrix.rubygems }}"
+          bundler: "${{ matrix.bundler }}"
+          bundler-cache: false
+
+      - name: CodeClimate Pre-build Notification
+        run: cc-test-reporter before-build
+        if: ${{ github.event_name != 'pull_request' }}
+        continue-on-error: ${{ matrix.experimental != 'false' }}
+
+      # This will use the BUNDLE_GEMFILE set to matrix.gemfile (i.e. Appraisal.root)
+      # We need to do this first to get appraisal installed.
+      # NOTE: This does not use the root Gemfile at all.
+      - name: Bundle for Appraisal ${{ matrix.appraisal }}
+        run: bundle
+      - name: Install Appraisal ${{ matrix.appraisal }} dependencies
+        run: bundle exec appraisal ${{ matrix.appraisal }} bundle
+      - name: Run ${{ matrix.appraisal }} tests via ${{ matrix.exec_cmd }}
+        run: bundle exec appraisal ${{ matrix.appraisal }} bundle exec ${{ matrix.exec_cmd }}
+
+      - name: CodeClimate Post-build Notification
+        run: cc-test-reporter after-build
+        if: ${{ github.event_name != 'pull_request' }}
+        continue-on-error: ${{ matrix.experimental != 'false' }}
+
+      - name: Code Coverage Summary Report
+        uses: irongut/CodeCoverageSummary@v1.3.0
+        if: ${{ github.event_name == 'pull_request' }}
+        with:
+          filename: ./coverage/coverage.xml
+          badge: true
+          fail_below_min: true
+          format: markdown
+          hide_branch_rate: false
+          hide_complexity: true
+          indicators: true
+          output: both
+          thresholds: '69 80'
+        continue-on-error: ${{ matrix.experimental != 'false' }}
+
+      - name: Add Coverage PR Comment
+        uses: marocchino/sticky-pull-request-comment@v2
+        if: ${{ github.event_name == 'pull_request' }}
+        with:
+          recreate: true
+          path: code-coverage-results.md
+        continue-on-error: ${{ matrix.experimental != 'false' }}
+
+      - name: Coveralls
+        uses: coverallsapp/github-action@master
+        with:
+          github-token: ${{ secrets.GITHUB_TOKEN }}
+        continue-on-error: ${{ matrix.experimental != 'false' }}
+
+      - name: Upload results to Codecov
+        uses: codecov/codecov-action@v5
+        with:
+          token: ${{ secrets.CODECOV_TOKEN }}
diff --git a/.github/workflows/dependency-review.yml b/.github/workflows/dependency-review.yml
new file mode 100644
index 0000000..0d4a013
--- /dev/null
+++ b/.github/workflows/dependency-review.yml
@@ -0,0 +1,20 @@
+# Dependency Review Action
+#
+# This Action will scan dependency manifest files that change as part of a Pull Request, surfacing known-vulnerable versions of the packages declared or updated in the PR. Once installed, if the workflow run is marked as required, PRs introducing known-vulnerable packages will be blocked from merging.
+#
+# Source repository: https://github.com/actions/dependency-review-action
+# Public documentation: https://docs.github.com/en/code-security/supply-chain-security/understanding-your-software-supply-chain/about-dependency-review#dependency-review-enforcement
+name: 'Dependency Review'
+on: [pull_request]
+
+permissions:
+  contents: read
+
+jobs:
+  dependency-review:
+    runs-on: ubuntu-latest
+    steps:
+      - name: 'Checkout Repository'
+        uses: actions/checkout@v4
+      - name: 'Dependency Review'
+        uses: actions/dependency-review-action@v4
diff --git a/.github/workflows/heads.yml b/.github/workflows/heads.yml
new file mode 100644
index 0000000..32b30a3
--- /dev/null
+++ b/.github/workflows/heads.yml
@@ -0,0 +1,82 @@
+name: Heads Compat Matrix
+
+env:
+  K_SOUP_COV_DO: false
+
+on:
+  push:
+    branches:
+      - 'main'
+    tags:
+      - '!*' # Do not execute on tags
+  pull_request:
+    branches:
+      - '*'
+  # Allow manually triggering the workflow.
+  workflow_dispatch:
+
+permissions:
+  contents: read
+
+# Cancels all previous workflow runs for the same branch that have not yet completed.
+concurrency:
+  # The concurrency group contains the workflow name and the branch name.
+  group: "${{ github.workflow }}-${{ github.ref }}"
+  cancel-in-progress: true
+
+jobs:
+  test:
+    name: Specs - Ruby ${{ matrix.ruby }} ${{ matrix.appraisal }}${{ matrix.name_extra || '' }}
+    if: "!contains(github.event.commits[0].message, '[ci skip]') && !contains(github.event.commits[0].message, '[skip ci]')"
+    env: # $BUNDLE_GEMFILE must be set at job level, so it is set for all steps
+      BUNDLE_GEMFILE: ${{ github.workspace }}/${{ matrix.gemfile }}.gemfile
+    runs-on: ubuntu-latest
+    continue-on-error: ${{ matrix.experimental || endsWith(matrix.ruby, 'head') }}
+    strategy:
+      fail-fast: true
+      matrix:
+        include:
+          # ruby-head
+          - ruby: "ruby-head"
+            appraisal: "ruby-head"
+            exec_cmd: "turbo_tests -n4"
+            gemfile: "Appraisal.root"
+            rubygems: latest
+            bundler: latest
+
+          # truffleruby-head
+          - ruby: "truffleruby-head"
+            appraisal: "truffleruby-head"
+            exec_cmd: "turbo_tests -n4"
+            gemfile: "Appraisal.root"
+            rubygems: latest
+            bundler: latest
+
+          # jruby-head
+          - ruby: "jruby-head"
+            appraisal: "jruby-head"
+            exec_cmd: "turbo_tests -n4"
+            gemfile: "Appraisal.root"
+            rubygems: latest
+            bundler: latest
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup Ruby & RubyGems
+        uses: ruby/setup-ruby@v1
+        with:
+          ruby-version: ${{ matrix.ruby }}
+          rubygems: ${{ matrix.rubygems }}
+          bundler: ${{ matrix.bundler }}
+          bundler-cache: false
+      # This will use the BUNDLE_GEMFILE set to matrix.gemfile (i.e. Appraisal.root)
+      # We need to do this first to get appraisal installed.
+      # NOTE: This does not use the root Gemfile at all.
+      - name: Bundle for Appraisal ${{ matrix.appraisal }}
+        run: bundle
+      - name: Install Appraisal ${{ matrix.appraisal }} dependencies
+        run: bundle exec appraisal ${{ matrix.appraisal }} bundle
+      - name: Run ${{ matrix.appraisal }} tests via ${{ matrix.exec_cmd }}
+        run: bundle exec appraisal ${{ matrix.appraisal }} bundle exec ${{ matrix.exec_cmd }}
diff --git a/.github/workflows/legacy.yml b/.github/workflows/legacy.yml
new file mode 100644
index 0000000..3285654
--- /dev/null
+++ b/.github/workflows/legacy.yml
@@ -0,0 +1,66 @@
+name: Legacy Compat (EOL, Ruby 3.0) Matrix
+
+env:
+  K_SOUP_COV_DO: false
+
+on:
+  push:
+    branches:
+      - 'main'
+    tags:
+      - '!*' # Do not execute on tags
+  pull_request:
+    branches:
+      - '*'
+  # Allow manually triggering the workflow.
+  workflow_dispatch:
+
+permissions:
+  contents: read
+
+# Cancels all previous workflow runs for the same branch that have not yet completed.
+concurrency:
+  # The concurrency group contains the workflow name and the branch name.
+  group: "${{ github.workflow }}-${{ github.ref }}"
+  cancel-in-progress: true
+
+jobs:
+  test:
+    name: Specs - Ruby ${{ matrix.ruby }} ${{ matrix.appraisal }}${{ matrix.name_extra || '' }}
+    if: "!contains(github.event.commits[0].message, '[ci skip]') && !contains(github.event.commits[0].message, '[skip ci]')"
+    env: # $BUNDLE_GEMFILE must be set at job level, so it is set for all steps
+      BUNDLE_GEMFILE: ${{ github.workspace }}/${{ matrix.gemfile }}.gemfile
+    continue-on-error: ${{ matrix.experimental || endsWith(matrix.ruby, 'head') }}
+    runs-on: ubuntu-22.04
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          # Ruby 3.0
+          - ruby: "3.0"
+            appraisal: "ruby-3-0"
+            exec_cmd: "turbo_tests -n4"
+            gemfile: "Appraisal.root"
+            rubygems: '3.5.23'
+            bundler: '2.5.23'
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup Ruby & RubyGems
+        uses: ruby/setup-ruby@v1
+        with:
+          ruby-version: ${{ matrix.ruby }}
+          rubygems: ${{ matrix.rubygems }}
+          bundler: ${{ matrix.bundler }}
+          bundler-cache: false
+      # This will use the BUNDLE_GEMFILE set to matrix.gemfile (i.e. Appraisal.root)
+      # We need to do this first to get appraisal installed.
+      # NOTE: This does not use the root Gemfile at all.
+      - name: Bundle for Appraisal ${{ matrix.appraisal }}
+        run: bundle
+      - name: Install Appraisal ${{ matrix.appraisal }} dependencies
+        run: bundle exec appraisal ${{ matrix.appraisal }} bundle
+      - name: Run ${{ matrix.appraisal }} tests via ${{ matrix.exec_cmd }}
+        run: bundle exec appraisal ${{ matrix.appraisal }} bundle exec ${{ matrix.exec_cmd }}
diff --git a/.github/workflows/style.yml b/.github/workflows/style.yml
new file mode 100644
index 0000000..3c529aa
--- /dev/null
+++ b/.github/workflows/style.yml
@@ -0,0 +1,50 @@
+name: Ruby - Style
+
+on:
+  push:
+    branches:
+      - 'main'
+    tags:
+      - '!*' # Do not execute on tags
+  pull_request:
+    branches:
+      - '*'
+
+jobs:
+  rubocop:
+    name: RuboCop
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          # Style
+          - ruby: "3.4"
+            appraisal: "style"
+            exec_cmd: "rake rubocop_gradual:check"
+            gemfile: "Appraisal.root"
+            rubygems: latest
+            bundler: latest
+
+    runs-on: ubuntu-latest
+    continue-on-error: ${{ matrix.experimental || endsWith(matrix.ruby, 'head') }}
+    env: # $BUNDLE_GEMFILE must be set at job level, so it is set for all steps
+      BUNDLE_GEMFILE: ${{ github.workspace }}/gemfiles/${{ matrix.gemfile }}.gemfile
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Setup Ruby & RubyGems
+        uses: ruby/setup-ruby@v1
+        with:
+          ruby-version: ${{ matrix.ruby }}
+          rubygems: ${{ matrix.rubygems }}
+          bundler: ${{ matrix.bundler }}
+          bundler-cache: false
+      # This will use the BUNDLE_GEMFILE set to matrix.gemfile (i.e. Appraisal.root)
+      # We need to do this first to get appraisal installed.
+      # NOTE: This does not use the root Gemfile at all.
+      - name: Bundle for Appraisal ${{ matrix.appraisal }}
+        run: bundle
+      - name: Install Appraisal ${{ matrix.appraisal }} dependencies
+        run: bundle exec appraisal ${{ matrix.appraisal }} bundle
+      - name: Run ${{ matrix.appraisal }} tests via ${{ matrix.exec_cmd }}
+        run: bundle exec appraisal ${{ matrix.appraisal }} bundle exec ${{ matrix.exec_cmd }}
diff --git a/.github/workflows/supported.yml b/.github/workflows/supported.yml
new file mode 100644
index 0000000..d7ba6e8
--- /dev/null
+++ b/.github/workflows/supported.yml
@@ -0,0 +1,89 @@
+name: Supported Compat Matrix
+
+env:
+  K_SOUP_COV_DO: false
+
+on:
+  push:
+    branches:
+      - 'main'
+    tags:
+      - '!*' # Do not execute on tags
+  pull_request:
+    branches:
+      - '*'
+  # Allow manually triggering the workflow.
+  workflow_dispatch:
+
+permissions:
+  contents: read
+
+# Cancels all previous workflow runs for the same branch that have not yet completed.
+concurrency:
+  # The concurrency group contains the workflow name and the branch name.
+  group: "${{ github.workflow }}-${{ github.ref }}"
+  cancel-in-progress: true
+
+jobs:
+  test:
+    name: Specs - Ruby ${{ matrix.ruby }} ${{ matrix.appraisal }}${{ matrix.name_extra || '' }}
+    if: "!contains(github.event.commits[0].message, '[ci skip]') && !contains(github.event.commits[0].message, '[skip ci]')"
+    env: # $BUNDLE_GEMFILE must be set at job level, so it is set for all steps
+      BUNDLE_GEMFILE: ${{ github.workspace }}/${{ matrix.gemfile }}.gemfile
+    runs-on: ubuntu-latest
+    continue-on-error: ${{ matrix.experimental || endsWith(matrix.ruby, 'head') }}
+    strategy:
+      matrix:
+        include:
+          # Ruby 3.1
+          - ruby: "3.1"
+            appraisal: "ruby-3-1"
+            exec_cmd: "turbo_tests -n4"
+            gemfile: "Appraisal.root"
+            rubygems: latest
+            bundler: latest
+
+          # Ruby 3.2
+          - ruby: "3.2"
+            appraisal: "ruby-3-2"
+            exec_cmd: "turbo_tests -n4"
+            gemfile: "Appraisal.root"
+            rubygems: latest
+            bundler: latest
+
+          # Ruby 3.3
+          - ruby: "3.3"
+            appraisal: "ruby-3-3"
+            exec_cmd: "turbo_tests -n4"
+            gemfile: "Appraisal.root"
+            rubygems: latest
+            bundler: latest
+
+          # Ruby 3.4
+          - ruby: "3.4"
+            appraisal: "ruby-3-4"
+            exec_cmd: "turbo_tests -n4"
+            gemfile: "Appraisal.root"
+            rubygems: latest
+            bundler: latest
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup Ruby & RubyGems
+        uses: ruby/setup-ruby@v1
+        with:
+          ruby-version: ${{ matrix.ruby }}
+          rubygems: ${{ matrix.rubygems }}
+          bundler: ${{ matrix.bundler }}
+          bundler-cache: false
+      # This will use the BUNDLE_GEMFILE set to matrix.gemfile (i.e. Appraisal.root)
+      # We need to do this first to get appraisal installed.
+      # NOTE: This does not use the root Gemfile at all.
+      - name: Bundle for Appraisal ${{ matrix.appraisal }}
+        run: bundle
+      - name: Install Appraisal ${{ matrix.appraisal }} dependencies
+        run: bundle exec appraisal ${{ matrix.appraisal }} bundle
+      - name: Run ${{ matrix.appraisal }} tests via ${{ matrix.exec_cmd }}
+        run: bundle exec appraisal ${{ matrix.appraisal }} bundle exec ${{ matrix.exec_cmd }}
diff --git a/.github/workflows/tag_and_release.yml b/.github/workflows/tag_and_release.yml
index 9d0264a..11eff4c 100644
--- a/.github/workflows/tag_and_release.yml
+++ b/.github/workflows/tag_and_release.yml
@@ -20,7 +20,7 @@ jobs:
       packages: write
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - name: Set up Ruby 2.7
       uses: ruby/setup-ruby@v1
       with:
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index e552093..4f56ce7 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -2,6 +2,8 @@ name: Tests
 
 on:
   pull_request:
+    branches:
+      - '!*' # Ignore this workflow; Remove workflow once done pulling in upstream PRs
 
 permissions:
   contents: read
diff --git a/.github/workflows/unsupported.yml b/.github/workflows/unsupported.yml
new file mode 100644
index 0000000..f7a9720
--- /dev/null
+++ b/.github/workflows/unsupported.yml
@@ -0,0 +1,66 @@
+name: Unsupported Compat (EOL, Ruby 2.6, 2.7) Matrix
+
+env:
+  K_SOUP_COV_DO: false
+
+on:
+  push:
+    branches:
+      - 'main'
+    tags:
+      - '!*' # Do not execute on tags
+  pull_request:
+    branches:
+      - '*'
+  # Allow manually triggering the workflow.
+  workflow_dispatch:
+
+permissions:
+  contents: read
+
+# Cancels all previous workflow runs for the same branch that have not yet completed.
+concurrency:
+  # The concurrency group contains the workflow name and the branch name.
+  group: "${{ github.workflow }}-${{ github.ref }}"
+  cancel-in-progress: true
+
+jobs:
+  test:
+    name: Specs - Ruby ${{ matrix.ruby }} ${{ matrix.appraisal }}${{ matrix.name_extra || '' }}
+    if: "!contains(github.event.commits[0].message, '[ci skip]') && !contains(github.event.commits[0].message, '[skip ci]')"
+    env: # $BUNDLE_GEMFILE must be set at job level, so it is set for all steps
+      BUNDLE_GEMFILE: ${{ github.workspace }}/${{ matrix.gemfile }}.gemfile
+    continue-on-error: ${{ matrix.experimental || endsWith(matrix.ruby, 'head') }}
+    runs-on: ubuntu-22.04
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          # Ruby 2.7
+          - ruby: "2.7"
+            appraisal: "ruby-2-7"
+            exec_cmd: "turbo_tests -n4"
+            gemfile: "Appraisal.root"
+            rubygems: '3.4.22'
+            bundler: '2.4.22'
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup Ruby & RubyGems
+        uses: ruby/setup-ruby@v1
+        with:
+          ruby-version: ${{ matrix.ruby }}
+          rubygems: ${{ matrix.rubygems }}
+          bundler: ${{ matrix.bundler }}
+          bundler-cache: false
+      # This will use the BUNDLE_GEMFILE set to matrix.gemfile (i.e. Appraisal.root)
+      # We need to do this first to get appraisal installed.
+      # NOTE: This does not use the root Gemfile at all.
+      - name: Bundle for Appraisal ${{ matrix.appraisal }}
+        run: bundle
+      - name: Install Appraisal ${{ matrix.appraisal }} dependencies
+        run: bundle exec appraisal ${{ matrix.appraisal }} bundle
+      - name: Run ${{ matrix.appraisal }} tests via ${{ matrix.exec_cmd }}
+        run: bundle exec appraisal ${{ matrix.appraisal }} bundle exec ${{ matrix.exec_cmd }}
diff --git a/.gitignore b/.gitignore
index 2a71158..2fde0d5 100644
--- a/.gitignore
+++ b/.gitignore
@@ -66,3 +66,7 @@ tags
 
 # End of https://www.toptal.com/developers/gitignore/api/macos,vim
 
+# Appraisals Bundles (only commit the coverage, audit, and style lockfiles)
+gemfiles/ruby_*.gemfile.lock
+gemfiles/*_head.gemfile.lock
+Appraisal.root.gemfile.lock
\ No newline at end of file
diff --git a/Appraisal.root.gemfile b/Appraisal.root.gemfile
new file mode 100644
index 0000000..1d6ae79
--- /dev/null
+++ b/Appraisal.root.gemfile
@@ -0,0 +1,16 @@
+git_source(:github) { |repo_name| "https://github.com/#{repo_name}" }
+
+# Allow usage of eval_gemfile inside our Appraisal definitions
+# Solution is based on this comment:
+#   https://github.com/thoughtbot/appraisal/issues/154#issuecomment-493804217
+# (and fixed to work in 2025)
+eval_gemfile "appraisal-hack.gemfile"
+
+source "https://rubygems.org"
+
+# Appraisal Root Gemfile is for running appraisal to generate the Appraisal Gemfiles
+#   in gemfiles/*gemfile. It is not loaded on CI.
+# On CI we only run it for the Appraisal-based builds.
+# We do not load the standard Gemfile, as it is tailored for local development.
+
+gemspec
diff --git a/Appraisals b/Appraisals
new file mode 100644
index 0000000..4bd1503
--- /dev/null
+++ b/Appraisals
@@ -0,0 +1,67 @@
+# frozen_string_literal: true
+
+appraise "ruby-2-7" do
+  gem "mutex_m", "~> 0.2"
+  gem "stringio", "~> 3.0"
+end
+
+appraise "ruby-3-0" do
+  gem "mutex_m", "~> 0.2"
+  gem "stringio", "~> 3.0"
+end
+
+appraise "ruby-3-1" do
+  gem "mutex_m", "~> 0.2"
+  gem "stringio", "~> 3.0"
+end
+
+appraise "ruby-3-2" do
+  gem "mutex_m", "~> 0.2"
+  gem "stringio", "~> 3.0"
+end
+
+appraise "ruby-3-3" do
+  gem "mutex_m", "~> 0.2"
+  gem "stringio", "~> 3.0"
+end
+
+appraise "ruby-3-4" do
+  gem "mutex_m", "~> 0.2"
+  gem "stringio", "~> 3.0"
+end
+
+# Only run security audit on latest Ruby version
+appraise "audit" do
+  gem "mutex_m", "~> 0.2"
+  gem "stringio", "~> 3.0"
+  eval_gemfile "modular/audit.gemfile"
+end
+
+# Only run coverage on latest Ruby version
+appraise "coverage" do
+  gem "mutex_m", "~> 0.2"
+  gem "stringio", "~> 3.0"
+  eval_gemfile "modular/coverage.gemfile"
+end
+
+# Only run linter on latest Ruby version (but, in support of oldest supported Ruby version)
+appraise "style" do
+  gem "mutex_m", "~> 0.2"
+  gem "stringio", "~> 3.0"
+  eval_gemfile "modular/style.gemfile"
+end
+
+appraise "ruby-head" do
+  gem "mutex_m", ">= 0.2"
+  gem "stringio", ">= 3.0"
+end
+
+appraise "truffleruby-head" do
+  gem "mutex_m", ">= 0.2"
+  gem "stringio", ">= 3.0"
+end
+
+appraise "jruby-head" do
+  gem "mutex_m", ">= 0.2"
+  gem "stringio", ">= 3.0"
+end
diff --git a/Gemfile b/Gemfile
index 3085f59..ca045ea 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,6 +1,18 @@
 source "https://rubygems.org"
 
+# Security Audit
+if RUBY_VERSION >= "3"
+  # Note: Audit fails on Ruby 2.7 because nokogiri has dropped support for Ruby < 3
+  # See: https://github.com/sparklemotion/nokogiri/security/advisories/GHSA-r95h-9x8f-r3f7
+  # We can't add upgraded nokogiri here unless we are developing on Ruby 3+
+  eval_gemfile "gemfiles/modular/audit.gemfile"
+end
+
+# Code Coverage
+eval_gemfile "gemfiles/modular/coverage.gemfile"
+
+# Linting
+eval_gemfile "gemfiles/modular/style.gemfile"
+
 # Specify your gem's dependencies in turbo_tests.gemspec
 gemspec
-
-gem "rake", "~> 13.0"
diff --git a/Gemfile.lock b/Gemfile.lock
index 897849f..0999021 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -8,24 +8,51 @@ PATH
 GEM
   remote: https://rubygems.org/
   specs:
+    ansi (1.5.0)
     appraisal (2.5.0)
       bundler
       rake
       thor (>= 0.14.0)
+    ast (2.4.2)
+    bundler-audit (0.9.2)
+      bundler (>= 1.2.0, < 3)
+      thor (~> 1.0)
     coderay (1.1.3)
     diff-lcs (1.5.1)
+    diffy (3.4.3)
+    docile (1.4.1)
+    json (2.9.1)
+    kettle-soup-cover (1.0.4)
+      simplecov (~> 0.22)
+      simplecov-cobertura (~> 2.1)
+      simplecov-console (~> 0.9, >= 0.9.1)
+      simplecov-html (~> 0.12)
+      simplecov-lcov (~> 0.8)
+      simplecov-rcov (~> 0.3, >= 0.3.3)
+      simplecov_json_formatter (~> 0.1, >= 0.1.4)
+      version_gem (~> 1.1, >= 1.1.4)
+    language_server-protocol (3.17.0.3)
+    lint_roller (1.1.0)
     method_source (1.1.0)
     parallel (1.26.3)
     parallel_tests (4.9.0)
       parallel
+    parser (3.3.6.0)
+      ast (~> 2.4.1)
+      racc
     pry (0.15.2)
       coderay (~> 1.1)
       method_source (~> 1.0)
+    racc (1.8.1)
+    rainbow (3.1.1)
     rake (13.2.1)
+    regexp_parser (2.10.0)
+    rexml (3.4.0)
     rspec (3.13.0)
       rspec-core (~> 3.13.0)
       rspec-expectations (~> 3.13.0)
       rspec-mocks (~> 3.13.0)
+    rspec-block_is_expected (1.0.6)
     rspec-core (3.13.2)
       rspec-support (~> 3.13.0)
     rspec-expectations (3.13.3)
@@ -35,15 +62,106 @@ GEM
       diff-lcs (>= 1.2.0, < 2.0)
       rspec-support (~> 3.13.0)
     rspec-support (3.13.2)
+    rubocop (1.69.2)
+      json (~> 2.3)
+      language_server-protocol (>= 3.17.0)
+      parallel (~> 1.10)
+      parser (>= 3.3.0.2)
+      rainbow (>= 2.2.2, < 4.0)
+      regexp_parser (>= 2.9.3, < 3.0)
+      rubocop-ast (>= 1.36.2, < 2.0)
+      ruby-progressbar (~> 1.7)
+      unicode-display_width (>= 2.4.0, < 4.0)
+    rubocop-ast (1.37.0)
+      parser (>= 3.3.1.0)
+    rubocop-gradual (0.3.6)
+      diff-lcs (>= 1.2.0, < 2.0)
+      diffy (~> 3.0)
+      parallel (~> 1.10)
+      rainbow (>= 2.2.2, < 4.0)
+      rubocop (~> 1.0)
+    rubocop-lts (18.2.1)
+      rubocop-ruby2_7 (>= 2.0.4, < 3)
+      standard-rubocop-lts (>= 1.0.3, < 3)
+      version_gem (>= 1.1.2, < 3)
+    rubocop-md (1.2.4)
+      rubocop (>= 1.45)
+    rubocop-packaging (0.5.2)
+      rubocop (>= 1.33, < 2.0)
+    rubocop-performance (1.23.1)
+      rubocop (>= 1.48.1, < 2.0)
+      rubocop-ast (>= 1.31.1, < 2.0)
+    rubocop-rake (0.6.0)
+      rubocop (~> 1.0)
+    rubocop-rspec (3.3.0)
+      rubocop (~> 1.61)
+    rubocop-ruby2_7 (2.0.6)
+      rubocop-gradual (~> 0.3, >= 0.3.1)
+      rubocop-md (~> 1.2)
+      rubocop-rake (~> 0.6)
+      rubocop-shopify (~> 2.14)
+      rubocop-thread_safety (~> 0.5, >= 0.5.1)
+      standard-rubocop-lts (~> 1.0, >= 1.0.7)
+      version_gem (>= 1.1.3, < 3)
+    rubocop-shopify (2.15.1)
+      rubocop (~> 1.51)
+    rubocop-thread_safety (0.6.0)
+      rubocop (>= 1.48.1)
+    ruby-progressbar (1.13.0)
+    simplecov (0.22.0)
+      docile (~> 1.1)
+      simplecov-html (~> 0.11)
+      simplecov_json_formatter (~> 0.1)
+    simplecov-cobertura (2.1.0)
+      rexml
+      simplecov (~> 0.19)
+    simplecov-console (0.9.2)
+      ansi
+      simplecov
+      terminal-table
+    simplecov-html (0.13.1)
+    simplecov-lcov (0.8.0)
+    simplecov-rcov (0.3.7)
+      simplecov (>= 0.4.1)
+    simplecov_json_formatter (0.1.4)
+    standard (1.43.0)
+      language_server-protocol (~> 3.17.0.2)
+      lint_roller (~> 1.0)
+      rubocop (~> 1.69.1)
+      standard-custom (~> 1.0.0)
+      standard-performance (~> 1.6)
+    standard-custom (1.0.2)
+      lint_roller (~> 1.0)
+      rubocop (~> 1.50)
+    standard-performance (1.6.0)
+      lint_roller (~> 1.1)
+      rubocop-performance (~> 1.23.0)
+    standard-rubocop-lts (1.0.10)
+      rspec-block_is_expected (~> 1.0, >= 1.0.5)
+      standard (>= 1.35.1, < 2)
+      standard-custom (>= 1.0.2, < 2)
+      standard-performance (>= 1.3.1, < 2)
+      version_gem (>= 1.1.4, < 3)
+    terminal-table (1.6.0)
     thor (1.3.2)
+    unicode-display_width (3.1.4)
+      unicode-emoji (~> 4.0, >= 4.0.4)
+    unicode-emoji (4.0.4)
+    version_gem (1.1.4)
 
 PLATFORMS
   ruby
 
 DEPENDENCIES
   appraisal (~> 2.5)
+  bundler-audit (~> 0.9.2)
+  kettle-soup-cover (~> 1.0, >= 1.0.4)
   pry (~> 0.14)
   rake (~> 13.0)
+  rubocop-lts (~> 18.2, >= 18.2.1)
+  rubocop-packaging (~> 0.5, >= 0.5.2)
+  rubocop-rspec (~> 3.2)
+  standard (>= 1.35.1, != 1.42.0, != 1.41.1)
   turbo_tests!
 
 BUNDLED WITH
diff --git a/README.md b/README.md
index f5a285a..4c805b2 100644
--- a/README.md
+++ b/README.md
@@ -105,6 +105,15 @@ After checking out the repo, run `bin/setup` to install dependencies. Then, run
 
 To install this gem onto your local machine, run `bundle exec rake install`. To release a new version, update the version number in `version.rb`, and then run `bundle exec rake release`, which will create a git tag for the version, push git commits and tags, and push the `.gem` file to [rubygems.org](https://rubygems.org).
 
+### Appraisals
+
+From time to time the appraisal gemfiles in `gemfiles/` will need to be updated.
+They are created and updated with the command:
+
+```shell
+BUNDLE_GEMFILE=Appraisal.root.gemfile appraisal update
+```
+
 ## Contributing
 
 Bug reports and pull requests are welcome on GitHub at https://github.com/serpapi/turbo_tests. This project is intended to be a safe, welcoming space for collaboration, and contributors are expected to adhere to the [code of conduct](https://github.com/serpapi/turbo_tests/blob/master/CODE_OF_CONDUCT.md).
diff --git a/Rakefile b/Rakefile
index dbd59ee..c656deb 100644
--- a/Rakefile
+++ b/Rakefile
@@ -1,7 +1,61 @@
-require "bundler/setup"
+# frozen_string_literal: true
+
 require "bundler/gem_tasks"
-require "rspec/core/rake_task"
 
-RSpec::Core::RakeTask.new(:spec)
+begin
+  require "rspec/core/rake_task"
+
+  RSpec::Core::RakeTask.new(:spec)
+rescue LoadError
+  task(:spec) do
+    warn("RSpec is disabled")
+  end
+end
+
+desc "alias test task to spec"
+task test: :spec
+
+begin
+  require "reek/rake/task"
+  Reek::Rake::Task.new do |t|
+    t.fail_on_error = true
+    t.verbose = false
+    t.source_files = "{spec,spec_ignored,spec_orms,lib}/**/*.rb"
+  end
+rescue LoadError
+  task(:reek) do
+    warn("reek is disabled")
+  end
+end
+
+begin
+  require "yard-junk/rake"
+
+  YardJunk::Rake.define_task
+rescue LoadError
+  task("yard:junk") do
+    warn("yard:junk is disabled")
+  end
+end
+
+begin
+  require "yard"
+
+  YARD::Rake::YardocTask.new(:yard)
+rescue LoadError
+  task(:yard) do
+    warn("yard is disabled")
+  end
+end
+
+begin
+  require "rubocop/lts"
+  Rubocop::Lts.install_tasks
+rescue LoadError
+  task(:rubocop_gradual) do
+    warn("RuboCop (Gradual) is disabled")
+  end
+end
 
-task default: :spec
+# These tests do not require any services to be running, so this is what we run as default
+task default: %i[spec rubocop_gradual:autocorrect yard yard:junk]
diff --git a/appraisal-hack.gemfile b/appraisal-hack.gemfile
new file mode 100644
index 0000000..b487778
--- /dev/null
+++ b/appraisal-hack.gemfile
@@ -0,0 +1,40 @@
+# NOTE: There are two identical copies of this file to make this hack work.
+#
+# Solution is based on this comment:
+#   https://github.com/thoughtbot/appraisal/issues/154#issuecomment-493804217
+# (and fixed to work in 2025)
+# NOTE: We have two copies of this file due to the inability to specify a reliable path,
+#       that works across varying invocations as indicated in that same comment.
+# See: https://github.com/thoughtbot/appraisal/issues/154#issuecomment-2571386411
+
+require "appraisal/bundler_dsl"
+
+if Appraisal::BundlerDSL::PARTS.include?("eval_gemfile")
+  # When the hack is already active, this code path is run within appraisal,
+  #   so we can't really tell the difference between already hacked,
+  #   and new version of appraisal has added the feature
+else
+  require "appraisal/appraisal"
+
+  Appraisal::Appraisal.class_eval do
+    def eval_gemfile(*args)
+      gemfile.eval_gemfile(*args)
+    end
+  end
+
+  Appraisal::BundlerDSL.class_eval do
+    def eval_gemfile(path, contents = nil)
+      (@eval_gemfile ||= []) << [path, contents]
+    end
+
+    private
+
+    def eval_gemfile_entry
+      @eval_gemfile.map { |(p, c)| "eval_gemfile(#{p.inspect}#{", #{c.inspect}" if c})" } * "\n\n"
+    end
+
+    alias_method :eval_gemfile_entry_for_dup, :eval_gemfile_entry
+
+    self::PARTS << "eval_gemfile"
+  end
+end
diff --git a/gemfiles/appraisal-hack.gemfile b/gemfiles/appraisal-hack.gemfile
new file mode 100644
index 0000000..b487778
--- /dev/null
+++ b/gemfiles/appraisal-hack.gemfile
@@ -0,0 +1,40 @@
+# NOTE: There are two identical copies of this file to make this hack work.
+#
+# Solution is based on this comment:
+#   https://github.com/thoughtbot/appraisal/issues/154#issuecomment-493804217
+# (and fixed to work in 2025)
+# NOTE: We have two copies of this file due to the inability to specify a reliable path,
+#       that works across varying invocations as indicated in that same comment.
+# See: https://github.com/thoughtbot/appraisal/issues/154#issuecomment-2571386411
+
+require "appraisal/bundler_dsl"
+
+if Appraisal::BundlerDSL::PARTS.include?("eval_gemfile")
+  # When the hack is already active, this code path is run within appraisal,
+  #   so we can't really tell the difference between already hacked,
+  #   and new version of appraisal has added the feature
+else
+  require "appraisal/appraisal"
+
+  Appraisal::Appraisal.class_eval do
+    def eval_gemfile(*args)
+      gemfile.eval_gemfile(*args)
+    end
+  end
+
+  Appraisal::BundlerDSL.class_eval do
+    def eval_gemfile(path, contents = nil)
+      (@eval_gemfile ||= []) << [path, contents]
+    end
+
+    private
+
+    def eval_gemfile_entry
+      @eval_gemfile.map { |(p, c)| "eval_gemfile(#{p.inspect}#{", #{c.inspect}" if c})" } * "\n\n"
+    end
+
+    alias_method :eval_gemfile_entry_for_dup, :eval_gemfile_entry
+
+    self::PARTS << "eval_gemfile"
+  end
+end
diff --git a/gemfiles/audit.gemfile b/gemfiles/audit.gemfile
new file mode 100644
index 0000000..82f8f72
--- /dev/null
+++ b/gemfiles/audit.gemfile
@@ -0,0 +1,12 @@
+# This file was generated by Appraisal
+
+source "https://rubygems.org"
+
+gem "mutex_m", "~> 0.2"
+gem "stringio", "~> 3.0"
+
+gemspec path: "../"
+
+eval_gemfile("appraisal-hack.gemfile")
+
+eval_gemfile("modular/audit.gemfile")
diff --git a/gemfiles/audit.gemfile.lock b/gemfiles/audit.gemfile.lock
new file mode 100644
index 0000000..8206e3e
--- /dev/null
+++ b/gemfiles/audit.gemfile.lock
@@ -0,0 +1,65 @@
+PATH
+  remote: ..
+  specs:
+    turbo_tests (2.2.4)
+      parallel_tests (>= 3.3.0, < 5)
+      rspec (>= 3.10)
+
+GEM
+  remote: https://rubygems.org/
+  specs:
+    appraisal (2.5.0)
+      bundler
+      rake
+      thor (>= 0.14.0)
+    bundler-audit (0.9.2)
+      bundler (>= 1.2.0, < 3)
+      thor (~> 1.0)
+    coderay (1.1.3)
+    diff-lcs (1.5.1)
+    method_source (1.1.0)
+    mutex_m (0.3.0)
+    parallel (1.26.3)
+    parallel_tests (4.9.0)
+      parallel
+    pry (0.15.2)
+      coderay (~> 1.1)
+      method_source (~> 1.0)
+    rake (13.2.1)
+    rspec (3.13.0)
+      rspec-core (~> 3.13.0)
+      rspec-expectations (~> 3.13.0)
+      rspec-mocks (~> 3.13.0)
+    rspec-core (3.13.2)
+      rspec-support (~> 3.13.0)
+    rspec-expectations (3.13.3)
+      diff-lcs (>= 1.2.0, < 2.0)
+      rspec-support (~> 3.13.0)
+    rspec-mocks (3.13.2)
+      diff-lcs (>= 1.2.0, < 2.0)
+      rspec-support (~> 3.13.0)
+    rspec-support (3.13.2)
+    stringio (3.1.2)
+    thor (1.3.2)
+
+PLATFORMS
+  aarch64-linux-gnu
+  aarch64-linux-musl
+  arm-linux-gnu
+  arm-linux-musl
+  arm64-darwin
+  x86_64-darwin
+  x86_64-linux-gnu
+  x86_64-linux-musl
+
+DEPENDENCIES
+  appraisal (~> 2.5)
+  bundler-audit (~> 0.9.2)
+  mutex_m (~> 0.2)
+  pry (~> 0.14)
+  rake (~> 13.0)
+  stringio (~> 3.0)
+  turbo_tests!
+
+BUNDLED WITH
+   2.6.2
diff --git a/gemfiles/coverage.gemfile b/gemfiles/coverage.gemfile
new file mode 100644
index 0000000..2ef804c
--- /dev/null
+++ b/gemfiles/coverage.gemfile
@@ -0,0 +1,12 @@
+# This file was generated by Appraisal
+
+source "https://rubygems.org"
+
+gem "mutex_m", "~> 0.2"
+gem "stringio", "~> 3.0"
+
+gemspec path: "../"
+
+eval_gemfile("appraisal-hack.gemfile")
+
+eval_gemfile("modular/coverage.gemfile")
diff --git a/gemfiles/coverage.gemfile.lock b/gemfiles/coverage.gemfile.lock
new file mode 100644
index 0000000..16b3902
--- /dev/null
+++ b/gemfiles/coverage.gemfile.lock
@@ -0,0 +1,88 @@
+PATH
+  remote: ..
+  specs:
+    turbo_tests (2.2.4)
+      parallel_tests (>= 3.3.0, < 5)
+      rspec (>= 3.10)
+
+GEM
+  remote: https://rubygems.org/
+  specs:
+    ansi (1.5.0)
+    appraisal (2.5.0)
+      bundler
+      rake
+      thor (>= 0.14.0)
+    coderay (1.1.3)
+    diff-lcs (1.5.1)
+    docile (1.4.1)
+    kettle-soup-cover (1.0.4)
+      simplecov (~> 0.22)
+      simplecov-cobertura (~> 2.1)
+      simplecov-console (~> 0.9, >= 0.9.1)
+      simplecov-html (~> 0.12)
+      simplecov-lcov (~> 0.8)
+      simplecov-rcov (~> 0.3, >= 0.3.3)
+      simplecov_json_formatter (~> 0.1, >= 0.1.4)
+      version_gem (~> 1.1, >= 1.1.4)
+    method_source (1.1.0)
+    mutex_m (0.3.0)
+    parallel (1.26.3)
+    parallel_tests (4.9.0)
+      parallel
+    pry (0.15.2)
+      coderay (~> 1.1)
+      method_source (~> 1.0)
+    rake (13.2.1)
+    rexml (3.4.0)
+    rspec (3.13.0)
+      rspec-core (~> 3.13.0)
+      rspec-expectations (~> 3.13.0)
+      rspec-mocks (~> 3.13.0)
+    rspec-core (3.13.2)
+      rspec-support (~> 3.13.0)
+    rspec-expectations (3.13.3)
+      diff-lcs (>= 1.2.0, < 2.0)
+      rspec-support (~> 3.13.0)
+    rspec-mocks (3.13.2)
+      diff-lcs (>= 1.2.0, < 2.0)
+      rspec-support (~> 3.13.0)
+    rspec-support (3.13.2)
+    simplecov (0.22.0)
+      docile (~> 1.1)
+      simplecov-html (~> 0.11)
+      simplecov_json_formatter (~> 0.1)
+    simplecov-cobertura (2.1.0)
+      rexml
+      simplecov (~> 0.19)
+    simplecov-console (0.9.2)
+      ansi
+      simplecov
+      terminal-table
+    simplecov-html (0.13.1)
+    simplecov-lcov (0.8.0)
+    simplecov-rcov (0.3.7)
+      simplecov (>= 0.4.1)
+    simplecov_json_formatter (0.1.4)
+    stringio (3.1.2)
+    terminal-table (3.0.2)
+      unicode-display_width (>= 1.1.1, < 3)
+    thor (1.3.2)
+    unicode-display_width (2.6.0)
+    version_gem (1.1.4)
+
+PLATFORMS
+  arm64-darwin-24
+  ruby
+
+DEPENDENCIES
+  appraisal (~> 2.5)
+  kettle-soup-cover (~> 1.0, >= 1.0.4)
+  mutex_m (~> 0.2)
+  pry (~> 0.14)
+  rake (~> 13.0)
+  stringio (~> 3.0)
+  turbo_tests!
+
+BUNDLED WITH
+   2.6.2
diff --git a/gemfiles/jruby_head.gemfile b/gemfiles/jruby_head.gemfile
new file mode 100644
index 0000000..288e442
--- /dev/null
+++ b/gemfiles/jruby_head.gemfile
@@ -0,0 +1,10 @@
+# This file was generated by Appraisal
+
+source "https://rubygems.org"
+
+gem "mutex_m", ">= 0.2"
+gem "stringio", ">= 3.0"
+
+gemspec path: "../"
+
+eval_gemfile("appraisal-hack.gemfile")
diff --git a/gemfiles/modular/audit.gemfile b/gemfiles/modular/audit.gemfile
new file mode 100644
index 0000000..e5cc919
--- /dev/null
+++ b/gemfiles/modular/audit.gemfile
@@ -0,0 +1,5 @@
+# frozen_string_literal: true
+
+# Many gems are dropping support for Ruby < 3,
+#   so we only want to run our security audit in CI on Ruby 3+
+gem "bundler-audit", "~> 0.9.2"
diff --git a/gemfiles/modular/coverage.gemfile b/gemfiles/modular/coverage.gemfile
new file mode 100644
index 0000000..c7756b9
--- /dev/null
+++ b/gemfiles/modular/coverage.gemfile
@@ -0,0 +1,6 @@
+# frozen_string_literal: true
+
+# We run code coverage on the latest version of Ruby only.
+
+# Coverage
+gem "kettle-soup-cover", "~> 1.0", ">= 1.0.4"
diff --git a/gemfiles/modular/style.gemfile b/gemfiles/modular/style.gemfile
new file mode 100644
index 0000000..41e075a
--- /dev/null
+++ b/gemfiles/modular/style.gemfile
@@ -0,0 +1,9 @@
+# frozen_string_literal: true
+
+# We run rubocop on the latest version of Ruby,
+#   but in support of the oldest supported version of Ruby
+
+gem "rubocop-lts", "~> 18.2", ">= 18.2.1"  # For Ruby 2.7+
+gem "rubocop-packaging", "~> 0.5", ">= 0.5.2"
+gem "rubocop-rspec", "~> 3.2"
+gem "standard", ">= 1.35.1", "!= 1.41.1", "!= 1.42.0"
diff --git a/gemfiles/ruby_2_7.gemfile b/gemfiles/ruby_2_7.gemfile
new file mode 100644
index 0000000..4c02229
--- /dev/null
+++ b/gemfiles/ruby_2_7.gemfile
@@ -0,0 +1,10 @@
+# This file was generated by Appraisal
+
+source "https://rubygems.org"
+
+gem "mutex_m", "~> 0.2"
+gem "stringio", "~> 3.0"
+
+gemspec path: "../"
+
+eval_gemfile("appraisal-hack.gemfile")
diff --git a/gemfiles/ruby_3_0.gemfile b/gemfiles/ruby_3_0.gemfile
new file mode 100644
index 0000000..4c02229
--- /dev/null
+++ b/gemfiles/ruby_3_0.gemfile
@@ -0,0 +1,10 @@
+# This file was generated by Appraisal
+
+source "https://rubygems.org"
+
+gem "mutex_m", "~> 0.2"
+gem "stringio", "~> 3.0"
+
+gemspec path: "../"
+
+eval_gemfile("appraisal-hack.gemfile")
diff --git a/gemfiles/ruby_3_1.gemfile b/gemfiles/ruby_3_1.gemfile
new file mode 100644
index 0000000..4c02229
--- /dev/null
+++ b/gemfiles/ruby_3_1.gemfile
@@ -0,0 +1,10 @@
+# This file was generated by Appraisal
+
+source "https://rubygems.org"
+
+gem "mutex_m", "~> 0.2"
+gem "stringio", "~> 3.0"
+
+gemspec path: "../"
+
+eval_gemfile("appraisal-hack.gemfile")
diff --git a/gemfiles/ruby_3_2.gemfile b/gemfiles/ruby_3_2.gemfile
new file mode 100644
index 0000000..4c02229
--- /dev/null
+++ b/gemfiles/ruby_3_2.gemfile
@@ -0,0 +1,10 @@
+# This file was generated by Appraisal
+
+source "https://rubygems.org"
+
+gem "mutex_m", "~> 0.2"
+gem "stringio", "~> 3.0"
+
+gemspec path: "../"
+
+eval_gemfile("appraisal-hack.gemfile")
diff --git a/gemfiles/ruby_3_3.gemfile b/gemfiles/ruby_3_3.gemfile
new file mode 100644
index 0000000..4c02229
--- /dev/null
+++ b/gemfiles/ruby_3_3.gemfile
@@ -0,0 +1,10 @@
+# This file was generated by Appraisal
+
+source "https://rubygems.org"
+
+gem "mutex_m", "~> 0.2"
+gem "stringio", "~> 3.0"
+
+gemspec path: "../"
+
+eval_gemfile("appraisal-hack.gemfile")
diff --git a/gemfiles/ruby_3_4.gemfile b/gemfiles/ruby_3_4.gemfile
new file mode 100644
index 0000000..4c02229
--- /dev/null
+++ b/gemfiles/ruby_3_4.gemfile
@@ -0,0 +1,10 @@
+# This file was generated by Appraisal
+
+source "https://rubygems.org"
+
+gem "mutex_m", "~> 0.2"
+gem "stringio", "~> 3.0"
+
+gemspec path: "../"
+
+eval_gemfile("appraisal-hack.gemfile")
diff --git a/gemfiles/ruby_head.gemfile b/gemfiles/ruby_head.gemfile
new file mode 100644
index 0000000..288e442
--- /dev/null
+++ b/gemfiles/ruby_head.gemfile
@@ -0,0 +1,10 @@
+# This file was generated by Appraisal
+
+source "https://rubygems.org"
+
+gem "mutex_m", ">= 0.2"
+gem "stringio", ">= 3.0"
+
+gemspec path: "../"
+
+eval_gemfile("appraisal-hack.gemfile")
diff --git a/gemfiles/style.gemfile b/gemfiles/style.gemfile
new file mode 100644
index 0000000..277ed3b
--- /dev/null
+++ b/gemfiles/style.gemfile
@@ -0,0 +1,12 @@
+# This file was generated by Appraisal
+
+source "https://rubygems.org"
+
+gem "mutex_m", "~> 0.2"
+gem "stringio", "~> 3.0"
+
+gemspec path: "../"
+
+eval_gemfile("appraisal-hack.gemfile")
+
+eval_gemfile("modular/style.gemfile")
diff --git a/gemfiles/style.gemfile.lock b/gemfiles/style.gemfile.lock
new file mode 100644
index 0000000..82306a0
--- /dev/null
+++ b/gemfiles/style.gemfile.lock
@@ -0,0 +1,139 @@
+PATH
+  remote: ..
+  specs:
+    turbo_tests (2.2.4)
+      parallel_tests (>= 3.3.0, < 5)
+      rspec (>= 3.10)
+
+GEM
+  remote: https://rubygems.org/
+  specs:
+    appraisal (2.5.0)
+      bundler
+      rake
+      thor (>= 0.14.0)
+    ast (2.4.2)
+    coderay (1.1.3)
+    diff-lcs (1.5.1)
+    diffy (3.4.3)
+    json (2.9.1)
+    language_server-protocol (3.17.0.3)
+    lint_roller (1.1.0)
+    method_source (1.1.0)
+    mutex_m (0.3.0)
+    parallel (1.26.3)
+    parallel_tests (4.9.0)
+      parallel
+    parser (3.3.6.0)
+      ast (~> 2.4.1)
+      racc
+    pry (0.15.2)
+      coderay (~> 1.1)
+      method_source (~> 1.0)
+    racc (1.8.1)
+    rainbow (3.1.1)
+    rake (13.2.1)
+    regexp_parser (2.10.0)
+    rspec (3.13.0)
+      rspec-core (~> 3.13.0)
+      rspec-expectations (~> 3.13.0)
+      rspec-mocks (~> 3.13.0)
+    rspec-block_is_expected (1.0.6)
+    rspec-core (3.13.2)
+      rspec-support (~> 3.13.0)
+    rspec-expectations (3.13.3)
+      diff-lcs (>= 1.2.0, < 2.0)
+      rspec-support (~> 3.13.0)
+    rspec-mocks (3.13.2)
+      diff-lcs (>= 1.2.0, < 2.0)
+      rspec-support (~> 3.13.0)
+    rspec-support (3.13.2)
+    rubocop (1.69.2)
+      json (~> 2.3)
+      language_server-protocol (>= 3.17.0)
+      parallel (~> 1.10)
+      parser (>= 3.3.0.2)
+      rainbow (>= 2.2.2, < 4.0)
+      regexp_parser (>= 2.9.3, < 3.0)
+      rubocop-ast (>= 1.36.2, < 2.0)
+      ruby-progressbar (~> 1.7)
+      unicode-display_width (>= 2.4.0, < 4.0)
+    rubocop-ast (1.37.0)
+      parser (>= 3.3.1.0)
+    rubocop-gradual (0.3.6)
+      diff-lcs (>= 1.2.0, < 2.0)
+      diffy (~> 3.0)
+      parallel (~> 1.10)
+      rainbow (>= 2.2.2, < 4.0)
+      rubocop (~> 1.0)
+    rubocop-lts (18.2.1)
+      rubocop-ruby2_7 (>= 2.0.4, < 3)
+      standard-rubocop-lts (>= 1.0.3, < 3)
+      version_gem (>= 1.1.2, < 3)
+    rubocop-md (1.2.4)
+      rubocop (>= 1.45)
+    rubocop-packaging (0.5.2)
+      rubocop (>= 1.33, < 2.0)
+    rubocop-performance (1.23.1)
+      rubocop (>= 1.48.1, < 2.0)
+      rubocop-ast (>= 1.31.1, < 2.0)
+    rubocop-rake (0.6.0)
+      rubocop (~> 1.0)
+    rubocop-rspec (3.3.0)
+      rubocop (~> 1.61)
+    rubocop-ruby2_7 (2.0.6)
+      rubocop-gradual (~> 0.3, >= 0.3.1)
+      rubocop-md (~> 1.2)
+      rubocop-rake (~> 0.6)
+      rubocop-shopify (~> 2.14)
+      rubocop-thread_safety (~> 0.5, >= 0.5.1)
+      standard-rubocop-lts (~> 1.0, >= 1.0.7)
+      version_gem (>= 1.1.3, < 3)
+    rubocop-shopify (2.15.1)
+      rubocop (~> 1.51)
+    rubocop-thread_safety (0.6.0)
+      rubocop (>= 1.48.1)
+    ruby-progressbar (1.13.0)
+    standard (1.43.0)
+      language_server-protocol (~> 3.17.0.2)
+      lint_roller (~> 1.0)
+      rubocop (~> 1.69.1)
+      standard-custom (~> 1.0.0)
+      standard-performance (~> 1.6)
+    standard-custom (1.0.2)
+      lint_roller (~> 1.0)
+      rubocop (~> 1.50)
+    standard-performance (1.6.0)
+      lint_roller (~> 1.1)
+      rubocop-performance (~> 1.23.0)
+    standard-rubocop-lts (1.0.10)
+      rspec-block_is_expected (~> 1.0, >= 1.0.5)
+      standard (>= 1.35.1, < 2)
+      standard-custom (>= 1.0.2, < 2)
+      standard-performance (>= 1.3.1, < 2)
+      version_gem (>= 1.1.4, < 3)
+    stringio (3.1.2)
+    thor (1.3.2)
+    unicode-display_width (3.1.4)
+      unicode-emoji (~> 4.0, >= 4.0.4)
+    unicode-emoji (4.0.4)
+    version_gem (1.1.4)
+
+PLATFORMS
+  arm64-darwin-24
+  ruby
+
+DEPENDENCIES
+  appraisal (~> 2.5)
+  mutex_m (~> 0.2)
+  pry (~> 0.14)
+  rake (~> 13.0)
+  rubocop-lts (~> 18.2, >= 18.2.1)
+  rubocop-packaging (~> 0.5, >= 0.5.2)
+  rubocop-rspec (~> 3.2)
+  standard (>= 1.35.1, != 1.42.0, != 1.41.1)
+  stringio (~> 3.0)
+  turbo_tests!
+
+BUNDLED WITH
+   2.6.2
diff --git a/gemfiles/truffleruby_head.gemfile b/gemfiles/truffleruby_head.gemfile
new file mode 100644
index 0000000..288e442
--- /dev/null
+++ b/gemfiles/truffleruby_head.gemfile
@@ -0,0 +1,10 @@
+# This file was generated by Appraisal
+
+source "https://rubygems.org"
+
+gem "mutex_m", ">= 0.2"
+gem "stringio", ">= 3.0"
+
+gemspec path: "../"
+
+eval_gemfile("appraisal-hack.gemfile")
diff --git a/turbo_tests.gemspec b/turbo_tests.gemspec
index cb0fd36..fe90512 100644
--- a/turbo_tests.gemspec
+++ b/turbo_tests.gemspec
@@ -22,8 +22,9 @@ Gem::Specification.new do |spec|
   spec.add_dependency "rspec", ">= 3.10"
   spec.add_dependency "parallel_tests", ">= 3.3.0", "< 5"
 
-  spec.add_development_dependency("appraisal", "~> 2.5")
+  spec.add_development_dependency "appraisal", "~> 2.5"
   spec.add_development_dependency "pry", "~> 0.14"
+  spec.add_development_dependency "rake", "~> 13.0"
 
   # 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.