diff --git a/.rubocop_gradual.lock b/.rubocop_gradual.lock
index cd948fb..19e9e56 100644
--- a/.rubocop_gradual.lock
+++ b/.rubocop_gradual.lock
@@ -1,5 +1,10 @@
 {
-  "bin/bundle:4028066867": [
-    [64, 5, 20, "ThreadSafety/InstanceVariableInClassMethod: Avoid instance variables in class methods.", 2485198147]
+  "bin/bundle:3870166066": [
+    [33, 24, 58, "Performance/ConstantRegexp: Extract this regexp into a constant, memoize it, or append an `/o` option to its options.", 2287896868],
+    [59, 40, 62, "Performance/ConstantRegexp: Extract this regexp into a constant, memoize it, or append an `/o` option to its options.", 2593609308],
+    [64, 5, 20, "ThreadSafety/InstanceVariableInClassMethod: Avoid instance variables in class methods.", 2485198147],
+    [86, 7, 34, "Style/MethodCallWithArgsParentheses: Use parentheses for method calls with arguments.", 991972134],
+    [93, 5, 194, "Style/MethodCallWithArgsParentheses: Use parentheses for method calls with arguments.", 1374511802],
+    [94, 5, 7, "Style/MethodCallWithArgsParentheses: Use parentheses for method calls with arguments.", 285434243]
   ]
 }
diff --git a/bin/bundle b/bin/bundle
index 450605b..42c7fd7 100755
--- a/bin/bundle
+++ b/bin/bundle
@@ -30,7 +30,7 @@ m = Module.new do
       if update_index && update_index.succ == i && a =~ Gem::Version::ANCHORED_VERSION_PATTERN
         bundler_version = a
       end
-      next unless a =~ /\A--bundler(?:[= ](#{Gem::Version::VERSION_PATTERN}))?\z/o
+      next unless a =~ /\A--bundler(?:[= ](#{Gem::Version::VERSION_PATTERN}))?\z/
       bundler_version = $1
       update_index = i
     end
@@ -56,7 +56,7 @@ m = Module.new do
   def lockfile_version
     return unless File.file?(lockfile)
     lockfile_contents = File.read(lockfile)
-    return unless lockfile_contents =~ /\n\nBUNDLED WITH\n\s{2,}(#{Gem::Version::VERSION_PATTERN})\n/o
+    return unless lockfile_contents =~ /\n\nBUNDLED WITH\n\s{2,}(#{Gem::Version::VERSION_PATTERN})\n/
     Regexp.last_match(1)
   end
 
@@ -83,15 +83,15 @@ m = Module.new do
 
   def activate_bundler
     gem_error = activation_error_handling do
-      gem("bundler", bundler_requirement)
+      gem "bundler", bundler_requirement
     end
     return if gem_error.nil?
     require_error = activation_error_handling do
       require "bundler/version"
     end
     return if require_error.nil? && Gem::Requirement.new(bundler_requirement).satisfied_by?(Gem::Version.new(Bundler::VERSION))
-    warn("Activating bundler (#{bundler_requirement}) failed:\n#{gem_error.message}\n\nTo install the version of bundler this project requires, run `gem install bundler -v '#{bundler_requirement}'`")
-    exit(42)
+    warn "Activating bundler (#{bundler_requirement}) failed:\n#{gem_error.message}\n\nTo install the version of bundler this project requires, run `gem install bundler -v '#{bundler_requirement}'`"
+    exit 42
   end
 
   def activation_error_handling
diff --git a/bin/setup b/bin/setup
new file mode 100755
index 0000000..dce67d8
--- /dev/null
+++ b/bin/setup
@@ -0,0 +1,8 @@
+#!/usr/bin/env bash
+set -euo pipefail
+IFS=$'\n\t'
+set -vx
+
+bundle install
+
+# Do any other automated setup that you need to do here