diff --git a/Gemfile b/Gemfile
index 7be8b4f..d0b6240 100644
--- a/Gemfile
+++ b/Gemfile
@@ -10,3 +10,4 @@ gem "rake", "~> 13.0"
 gem "rspec", "~> 3.0"
 
 gem "standard", "~> 1.3"
+
diff --git a/Gemfile.lock b/Gemfile.lock
new file mode 100644
index 0000000..a825804
--- /dev/null
+++ b/Gemfile.lock
@@ -0,0 +1,81 @@
+PATH
+  remote: .
+  specs:
+    rex (0.1.0)
+      rbtree (~> 0.4.6)
+
+GEM
+  remote: https://rubygems.org/
+  specs:
+    ast (2.4.2)
+    base64 (0.1.1)
+    diff-lcs (1.5.0)
+    json (2.6.3)
+    language_server-protocol (3.17.0.3)
+    lint_roller (1.1.0)
+    parallel (1.23.0)
+    parser (3.2.2.4)
+      ast (~> 2.4.1)
+      racc
+    racc (1.7.1)
+    rainbow (3.1.1)
+    rake (13.0.6)
+    rbtree (0.4.6)
+    regexp_parser (2.8.2)
+    rexml (3.2.6)
+    rspec (3.12.0)
+      rspec-core (~> 3.12.0)
+      rspec-expectations (~> 3.12.0)
+      rspec-mocks (~> 3.12.0)
+    rspec-core (3.12.2)
+      rspec-support (~> 3.12.0)
+    rspec-expectations (3.12.3)
+      diff-lcs (>= 1.2.0, < 2.0)
+      rspec-support (~> 3.12.0)
+    rspec-mocks (3.12.6)
+      diff-lcs (>= 1.2.0, < 2.0)
+      rspec-support (~> 3.12.0)
+    rspec-support (3.12.1)
+    rubocop (1.56.4)
+      base64 (~> 0.1.1)
+      json (~> 2.3)
+      language_server-protocol (>= 3.17.0)
+      parallel (~> 1.10)
+      parser (>= 3.2.2.3)
+      rainbow (>= 2.2.2, < 4.0)
+      regexp_parser (>= 1.8, < 3.0)
+      rexml (>= 3.2.5, < 4.0)
+      rubocop-ast (>= 1.28.1, < 2.0)
+      ruby-progressbar (~> 1.7)
+      unicode-display_width (>= 2.4.0, < 3.0)
+    rubocop-ast (1.29.0)
+      parser (>= 3.2.1.0)
+    rubocop-performance (1.19.1)
+      rubocop (>= 1.7.0, < 2.0)
+      rubocop-ast (>= 0.4.0)
+    ruby-progressbar (1.13.0)
+    standard (1.31.2)
+      language_server-protocol (~> 3.17.0.2)
+      lint_roller (~> 1.0)
+      rubocop (~> 1.56.4)
+      standard-custom (~> 1.0.0)
+      standard-performance (~> 1.2)
+    standard-custom (1.0.2)
+      lint_roller (~> 1.0)
+      rubocop (~> 1.50)
+    standard-performance (1.2.1)
+      lint_roller (~> 1.1)
+      rubocop-performance (~> 1.19.1)
+    unicode-display_width (2.5.0)
+
+PLATFORMS
+  arm64-darwin-22
+
+DEPENDENCIES
+  rake (~> 13.0)
+  rex!
+  rspec (~> 3.0)
+  standard (~> 1.3)
+
+BUNDLED WITH
+   2.4.8