Add bullet gem and config.

Gemfile

@@ -50,6 +50,7 @@ group :development do
 
   # Static analyzers, linters and similar
   gem 'brakeman', '~> 5.3.1'
+  gem 'bullet', '~> 7.0.3'
   gem 'lefthook', '~> 1.1.1'
   gem 'rubocop', '~> 1.36.0'
   gem 'rubocop-rails', '~> 2.16.0'

Gemfile.lock

@@ -73,6 +73,9 @@ GEM
       msgpack (~> 1.2)
     brakeman (5.3.1)
     builder (3.2.4)
+    bullet (7.0.3)
+      activesupport (>= 3.0.0)
+      uniform_notifier (~> 1.11)
     concurrent-ruby (1.1.10)
     crass (1.0.6)
     debug (1.6.2)
@@ -214,6 +217,7 @@ GEM
     tzinfo (2.0.5)
       concurrent-ruby (~> 1.0)
     unicode-display_width (2.3.0)
+    uniform_notifier (1.16.0)
     warden (1.2.9)
       rack (>= 2.0.9)
     web-console (4.2.0)
@@ -233,6 +237,7 @@ PLATFORMS
 DEPENDENCIES
   bootsnap
   brakeman (~> 5.3.1)
+  bullet (~> 7.0.3)
   debug
   devise (~> 4.8.1)
   importmap-rails

config/environments/development.rb

@@ -1,6 +1,15 @@
 require "active_support/core_ext/integer/time"
 
 Rails.application.configure do
+  config.after_initialize do
+    Bullet.enable        = true
+    Bullet.alert         = true
+    Bullet.bullet_logger = true
+    Bullet.console       = true
+    Bullet.rails_logger  = true
+    Bullet.add_footer    = true
+  end
+
   # Settings specified here will take precedence over those in config/application.rb.
 
   # In the development environment your application's code is reloaded any time

config/environments/test.rb

@@ -6,6 +6,12 @@
 # and recreated between test runs. Don't rely on the data there!
 
 Rails.application.configure do
+  config.after_initialize do
+    Bullet.enable        = true
+    Bullet.bullet_logger = true
+    Bullet.raise         = true # raise an error if n+1 query occurs
+  end
+
   # Settings specified here will take precedence over those in config/application.rb.
 
   # Turn false under Spring and add config.action_view.cache_template_loading = true.