diff --git a/.github/workflows/ruby.yml b/.github/workflows/ruby.yml
index cbec182..4a83cf9 100644
--- a/.github/workflows/ruby.yml
+++ b/.github/workflows/ruby.yml
@@ -1,10 +1,3 @@
-# This workflow uses actions that are not certified by GitHub.
-# They are provided by a third-party and are governed by
-# separate terms of service, privacy policy, and support
-# documentation.
-# This workflow will download a prebuilt Ruby version, install dependencies and run tests with Rake
-# For more information see: https://github.com/marketplace/actions/setup-ruby-jruby-and-truffleruby
-
 name: Ruby
 
 on:
@@ -14,28 +7,13 @@ on:
     branches: [ master ]
 
 jobs:
-  test-linux:
-    runs-on: ubuntu-latest
-    steps:
-    - uses: actions/checkout@v2
-    - name: Set up Ruby
-      # To automatically get bug fixes and new Ruby versions for ruby/setup-ruby,
-      # (see https://github.com/ruby/setup-ruby#versioning):
-      uses: ruby/setup-ruby@v1
-    - name: Install dependencies
-      run: bundle install
-    - name: Run tests
-      run: bundle exec rspec
-
-  test-mac:
-    runs-on: macos-14
+  tests:
+    runs-on: macos-latest
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v5
     - name: Set up Ruby
-      # To automatically get bug fixes and new Ruby versions for ruby/setup-ruby,
-      # (see https://github.com/ruby/setup-ruby#versioning):
       uses: ruby/setup-ruby@v1
-    - name: Install dependencies
-      run: bundle install
+      with:
+        bundler-cache: true
     - name: Run tests
       run: bundle exec rspec
diff --git a/bin/battlestation b/bin/battlestation
index 8d6527a..c51425f 100755
--- a/bin/battlestation
+++ b/bin/battlestation
@@ -6,6 +6,4 @@ $LOAD_PATH.unshift("#{__dir__}/../lib")
 require 'battlestation'
 
 cli = Battlestation::CLI.new
-result = cli.run
-
-exit result
+cli.run
diff --git a/bin/sync_symlinks b/bin/sync_symlinks
deleted file mode 100755
index 42b41fc..0000000
--- a/bin/sync_symlinks
+++ /dev/null
@@ -1,48 +0,0 @@
-#!/usr/bin/env ruby
-
-# TODO: This is a WIP that will replace `create_link()` in setup.sh
-
-require 'optparse'
-require 'yaml'
-require 'pathname'
-
-require_relative '../lib/output'
-
-optparse = OptionParser.new do |opts|
-  opts.banner = "Usage: #{File.basename(__FILE__)} yaml_path"
-
-  opts.on( '-h', '--help', 'Display usage' ) do
-    Output.put_info(opts)
-    exit 1
-  end
-end
-
-optparse.parse!
-
-unless ARGV.count == 1
-  Output.put_error('Specify a single file.')
-  exit 1
-end
-
-yaml_path = ARGV[0]
-
-unless File.exists? yaml_path
-  Output.put_error("#{yaml_path} does not exist.")
-  exit 1
-end
-
-yaml = YAML.load_file(yaml_path)
-
-unless yaml.is_a? Array
-  Output.put_error("File must be a YAML array.")
-  exit 1
-end
-
-Symlink = Struct.new(:target_path, :source_path)
-symlinks = yaml.map do |element|
-  target_path = element['target_path']
-  source_path = element['source_path']
-  Symlink.new(target_path, source_path)
-end
-
-puts symlinks.inspect
diff --git a/config/symlinks.yaml b/config/symlinks.yaml
deleted file mode 100644
index f5228e8..0000000
--- a/config/symlinks.yaml
+++ /dev/null
@@ -1,16 +0,0 @@
-# Symbolic links to create.
-# Relatives target paths are relative to $HOME. Relative source paths are relative to the root of
-# this repo. Absolute paths are not modified.
----
-- target_path: .gitconfig
-  source_path: dotfiles/gitconfig
-
-- target_path: .npmrc
-  source_path: dotfiles/npmrc
-
-- target_path: Library/Application Support/Code/User/settings.json
-  source_path: vscode_settings.json
-
-
-- target_path: /usr/local/bin/git-cleanup
-  source_path: git-cleanup
diff --git a/lib/battlestation.rb b/lib/battlestation.rb
index 084501a..02bdce6 100644
--- a/lib/battlestation.rb
+++ b/lib/battlestation.rb
@@ -1,2 +1 @@
 require_relative 'battlestation/cli.rb'
-require_relative 'battlestation/symlink.rb'
diff --git a/lib/battlestation/cli.rb b/lib/battlestation/cli.rb
index 1bcabc8..6a0228e 100644
--- a/lib/battlestation/cli.rb
+++ b/lib/battlestation/cli.rb
@@ -15,7 +15,6 @@ class CLI
     # inspect the target files.
     #
     # @param args [Array<String>] command line arguments
-    # @return [Integer] UNIX exit code
     def run(args = ARGV)
       current_dirname = Pathname.new(__FILE__).dirname
 
@@ -46,8 +45,6 @@ def run(args = ARGV)
 
       Output.put_success("Setup completed.")
       Output.put_info("Please close and reopen your shell.")
-
-      return $?.exitstatus
     end
 
     private
diff --git a/lib/battlestation/symlink.rb b/lib/battlestation/symlink.rb
deleted file mode 100644
index 774ea63..0000000
--- a/lib/battlestation/symlink.rb
+++ /dev/null
@@ -1,17 +0,0 @@
-# frozen_string_literal: true
-
-module Battlestation
-
-  # A value type representing a symbolic link.
-  class Symlink
-
-    def initialize(source_file, link_pathname)
-      @source_file = source_file
-      @link_pathname = link_pathname
-    end
-
-    def exists?
-      raise NotImplementedError, "todo..."
-    end
-  end
-end
diff --git a/spec/battlestation/cli_spec.rb b/spec/battlestation/cli_spec.rb
new file mode 100644
index 0000000..f5ac61f
--- /dev/null
+++ b/spec/battlestation/cli_spec.rb
@@ -0,0 +1,26 @@
+require 'spec_helper'
+require_relative '../../lib/battlestation/cli'
+
+describe Battlestation::CLI do
+
+  describe '#run' do
+    it 'runs each setup step and returns shell exit status' do
+      expect(subject).to receive(:install_terminal_theme).with(kind_of(Pathname))
+      expect(subject).to receive(:configure_xcode)
+      expect(subject).to receive(:run_legacy_setup_script).with(kind_of(Pathname))
+      expect(subject).to receive(:install_python)
+      expect(subject).to receive(:install_aws_cli)
+      expect(subject).to receive(:update_homebrew)
+      expect(subject).to receive(:install_packages)
+      expect(subject).to receive(:configure_fzf)
+      expect(subject).to receive(:install_ruby).with('2.7.6')
+      expect(subject).to receive(:set_ruby_version).with('2.7.6')
+      expect(subject).to receive(:install_gems).with(kind_of(Pathname))
+
+      allow(Output).to receive(:put_success)
+      allow(Output).to receive(:put_info)
+
+      subject.run
+    end
+  end
+end
diff --git a/spec/battlestation/symlink_spec.rb b/spec/battlestation/symlink_spec.rb
deleted file mode 100644
index 82e1482..0000000
--- a/spec/battlestation/symlink_spec.rb
+++ /dev/null
@@ -1,16 +0,0 @@
-# frozen_string_literal: true
-
-require 'battlestation'
-
-RSpec.describe Battlestation::Symlink do
-
-  describe '#exists?', :isolated_directory do
-    before do
-      # create files
-    end
-
-    it 'blah' do
-      expect(true).to be_truthy
-    end
-  end
-end