This is a copy of the gemfile for a social network that I'm building

Gemfile.rb

source 'https://rubygems.org'
git_source(:github) { |repo| "https://github.com/#{repo}.git" }

ruby '2.6.0'

# ++ Back-end infrastructure

# Bundle edge Rails instead: gem 'rails', github: 'rails/rails'
gem 'rails'
# Use pg as the database for Active Record
gem 'pg', '~> 0.18'
# Use Puma as the app server
gem 'puma'
# Use Redis adapter to run Action Cable in production
gem 'redis'
# Use AWS S3 for file storage
gem 'aws-sdk-s3', require: false
# Use SendGrid for transactional emails
gem 'sendgrid-ruby'
# Application performance monitoring
gem 'newrelic_rpm'
# Bug and exception tracking
gem 'sentry-raven'
# Add Elasticsearch for searching
gem 'searchkick'
# Increase JSON generation performance
gem 'oj'
# Increase persistent HTTP connection perforance
gem 'typhoeus'
# Auto-suggesting to add indices
gem 'pg_query'
# Sanitise PII out of Rails logs
gem 'logstop'
# Anonymize IP addresses
gem 'ip_anonymizer'
# rate limitting
gem 'rack-attack'

# ++ Engines

# GDPR policy management
gem 'gdpr_rails', github: 'ben-gy/gdpr_rails'
# Search analytics tracking
gem 'searchjoy'
# Insight into user behaviour
gem 'notable'
# Performance monitoring for postgres
gem 'pghero'
# Business Intelligence
gem 'blazer'

# ++ Back-end libraries

# Use devise for user model managment
gem 'devise'
# Simplify markup for forms
gem 'simple_form'
# Making objects taggable
gem 'acts-as-taggable-on'
# Geocoder for converting locations into data
gem 'geocoder'
# Friendly ID for good URLs
gem 'friendly_id'
# Powerful analytics
gem 'ahoy_matey'
# Enable following and liking
gem 'acts_as_votable'
# Easy pagination
gem 'will_paginate'
# Use Pundit for authorisation
gem 'pundit'
# Use groupify to manage groups
gem 'groupify', github: 'dwbutler/groupify', branch: 'fix/rails5-named-groups'
# Use browser to determine device/browser type for user
gem 'browser'
# Kaminari for pagination
gem 'kaminari'
# Devise login tracking
gem 'authtrail'
# Email analytics
gem 'ahoy_email'
# Centralise some config stuff
gem 'config'
# Natural language date/time parsing
gem 'chronic'
# Click to edit functionality
gem 'dynaspan', github: 'ben-gy/dynaspan'
# Payment infrastrucure
gem 'stripe'
# unique id generation
gem 'hashid-rails'
# Easier front-end cookie management
gem 'js_cookie_rails'
# Customer engagement
gem 'intercom-rails'
# Cocoon for nested forms
gem 'cocoon'
# Pretend to be a user
gem 'pretender'

# ++ Front-end infrastructure

# Use Uglifier as compressor for JavaScript assets
gem 'uglifier'
# Reduces boot times through caching; required in config/boot.rb
gem 'bootsnap', require: false
# Turbolinks makes navigating your web application faster. Read more: https://github.com/turbolinks/turbolinks
gem 'turbolinks'
# JQuery for Rails
gem 'jquery-rails'
# Use CoffeeScript for .coffee assets and views
gem 'coffee-rails'
# Use SCSS for stylesheets
gem 'sassc-rails'
# Slim templating language
gem 'slim-rails'
# Normalise browser style rendering
gem 'normalize-rails'
# Add vendor prefixes to CSS
gem 'autoprefixer-rails'
# Wrapper for the flexbox grid system
gem 'flexbox_rb'

# ++ Front-end libraries

# Beautifull responsive carousel slider
gem 'owlcarousel-rails'
# Interactive Vector maps
gem 'jvectormap-rails'
# Client-side form validations
gem 'client_side_validations'
gem 'client_side_validations-simple_form'
# Autosize textarea as you type
gem 'autosize'
# Use keyboard shortcuts
gem 'mousetrap-rails'
# Clever dropdowns
gem 'selectize-rails'

# +++ Development & tests

group :development, :test do
  # Call 'byebug' anywhere in the code to stop execution and get a debugger console
  gem 'byebug', platforms: [:mri, :mingw, :x64_mingw]
end

group :development do
  # Access an interactive console on exception pages or by calling 'console' anywhere in the code.
  gem 'web-console'
  gem 'listen'

  # Spring speeds up development by keeping your application running in the background. Read more: https://github.com/rails/spring
  gem 'spring'
  gem 'spring-watcher-listen'

  # Environment variable management
  gem 'figaro'

  # Letter opener to intercept an open emails
  gem 'letter_opener'

  # Static analysis tool
  gem 'brakeman'
end

group :test do
  # Adds support for Capybara system testing and selenium driver
  gem 'capybara'
  gem 'selenium-webdriver'

  # Easy installation and use of webdrivers to run system tests with Chrome
  gem 'webdrivers'
end