Use puma.

Author: dblock

.rubocop_todo.yml

@@ -1,6 +1,6 @@
 # This configuration was generated by
 # `rubocop --auto-gen-config`
-# on 2025-10-01 13:39:51 UTC using RuboCop version 1.81.1.
+# on 2025-10-01 17:05:23 UTC using RuboCop version 1.81.1.
 # The point is for the user to remove these configuration records
 # one by one as the offenses are removed from the code base.
 # Note that changes in the inspected code, or installation of new

Gemfile

@@ -10,12 +10,12 @@ gem 'mongoid-scroll'
 gem 'newrelic_rpm'
 gem 'newrelic-slack-ruby-bot'
 gem 'ostruct'
+gem 'puma'
 gem 'rack'
 gem 'rack-robotz'
 gem 'rack-server-pages'
 gem 'slack-ruby-bot-server-mailchimp'
 gem 'slack-ruby-bot-server-rtm'
-gem 'unicorn'
 
 group :development, :test do
   gem 'foreman'
@@ -43,5 +43,4 @@ group :test do
   gem 'selenium-webdriver'
   gem 'vcr'
   gem 'webmock'
-  gem 'webrick'
 end

Gemfile.lock

@@ -146,7 +146,6 @@ GEM
     kaminari-grape (1.0.1)
       grape
       kaminari-core (~> 1.0)
-    kgio (2.11.4)
     language_server-protocol (3.17.0.5)
     lint_roller (1.1.0)
     logger (1.7.0)
@@ -190,6 +189,7 @@ GEM
       newrelic_rpm
       slack-ruby-bot (>= 0.10.5)
     newrelic_rpm (9.21.0)
+    nio4r (2.7.4)
     nokogiri (1.18.10-aarch64-linux-gnu)
       racc (~> 1.4)
     nokogiri (1.18.10-aarch64-linux-musl)
@@ -219,6 +219,8 @@ GEM
       date
       stringio
     public_suffix (6.0.2)
+    puma (7.0.4)
+      nio4r (~> 2.0)
     racc (1.8.1)
     rack (3.2.1)
     rack-cors (3.0.0)
@@ -234,7 +236,6 @@ GEM
     rackup (2.2.1)
       rack (>= 3)
     rainbow (3.1.1)
-    raindrops (0.20.1)
     rake (13.3.0)
     rdoc (6.14.2)
       erb
@@ -343,17 +344,13 @@ GEM
     unicode-display_width (3.2.0)
       unicode-emoji (~> 4.1)
     unicode-emoji (4.1.0)
-    unicorn (6.1.0)
-      kgio (~> 2.6)
-      raindrops (~> 0.7)
     uri (1.0.3)
     vcr (6.3.1)
       base64
     webmock (3.25.1)
       addressable (>= 2.8.0)
       crack (>= 0.3.2)
       hashdiff (>= 0.4.0, < 2.0.0)
-    webrick (1.9.1)
     websocket (1.2.11)
     websocket-driver (0.7.7)
       base64
@@ -390,6 +387,7 @@ DEPENDENCIES
   newrelic-slack-ruby-bot
   newrelic_rpm
   ostruct
+  puma
   rack
   rack-robotz
   rack-server-pages
@@ -404,10 +402,8 @@ DEPENDENCIES
   selenium-webdriver
   slack-ruby-bot-server-mailchimp
   slack-ruby-bot-server-rtm
-  unicorn
   vcr
   webmock
-  webrick
 
 RUBY VERSION
    ruby 3.4.6p54

Procfile

@@ -1 +1 @@
-web: bundle exec unicorn -p $PORT
+web: bundle exec puma -p $PORT

slack-api-explorer/commands/help.rb

@@ -32,7 +32,7 @@ def self.commands
         General
         -------
 
-        help       - get this helpful message
+        help                                      - Get this helpful message.
 
         Commands
         --------

spec/support/capybara.rb

@@ -3,5 +3,4 @@
 Capybara.configure do |config|
   config.app = Api::Middleware.instance
   config.server_port = 9293
-  config.server = :webrick
 end