Set up bootsnap to increase server loading speed

Gemfile

@@ -7,6 +7,7 @@ git_source(:github) do |repo_name|
   "https://github.com/#{repo_name}.git"
 end
 
+gem 'bootsnap', require: false
 gem 'bootstrap', '~> 4.0.0.alpha6'
 gem 'coffee-rails', '~> 4.2'
 gem 'devise'

Gemfile.lock

@@ -51,6 +51,8 @@ GEM
       thread_safe (~> 0.3, >= 0.3.1)
     bcrypt (3.1.11)
     bindex (0.5.0)
+    bootsnap (1.1.2)
+      msgpack (~> 1.0)
     bootstrap (4.0.0.alpha6)
       autoprefixer-rails (>= 6.0.3)
       sass (>= 3.4.19)
@@ -156,6 +158,7 @@ GEM
     mime-types-data (3.2016.0521)
     mini_portile2 (2.2.0)
     minitest (5.10.3)
+    msgpack (1.1.0)
     multi_json (1.12.1)
     multi_xml (0.6.0)
     multipart-post (2.0.0)
@@ -352,6 +355,7 @@ PLATFORMS
   ruby
 
 DEPENDENCIES
+  bootsnap
   bootstrap (~> 4.0.0.alpha6)
   byebug
   capybara

config/boot.rb

@@ -1,3 +1,4 @@
 ENV['BUNDLE_GEMFILE'] ||= File.expand_path('../Gemfile', __dir__)
 
 require 'bundler/setup' # Set up gems listed in the Gemfile.
+require 'bootsnap/setup'