Add 'devise' gem

Gemfile

@@ -14,12 +14,11 @@ gem "importmap-rails"
 
 gem "sassc-rails"
 
-# Use Active Model has_secure_password [https://guides.rubyonrails.org/active_model_basics.html#securepassword]
-# gem "bcrypt", "~> 3.1.7"
-
 # Windows does not include zoneinfo files, so bundle the tzinfo-data gem
 gem "tzinfo-data", platforms: %i[ mingw mswin x64_mingw jruby ]
 
+gem "devise"
+
 group :development, :test do
   # See https://guides.rubyonrails.org/debugging_rails_applications.html#debugging-with-the-debug-gem
   gem "debug", platforms: %i[ mri mingw x64_mingw ]

Gemfile.lock

@@ -68,6 +68,7 @@ GEM
       tzinfo (~> 2.0)
     addressable (2.8.1)
       public_suffix (>= 2.0.2, < 6.0)
+    bcrypt (3.1.18)
     bindex (0.8.1)
     builder (3.2.4)
     byebug (11.1.3)
@@ -86,6 +87,12 @@ GEM
     debug (1.7.1)
       irb (>= 1.5.0)
       reline (>= 0.3.1)
+    devise (4.9.0)
+      bcrypt (~> 3.0)
+      orm_adapter (~> 0.1)
+      railties (>= 4.1.0)
+      responders
+      warden (~> 1.2.3)
     erubi (1.12.0)
     ffi (1.15.5)
     globalid (1.1.0)
@@ -124,6 +131,7 @@ GEM
     nio4r (2.5.8)
     nokogiri (1.14.2-x86_64-linux)
       racc (~> 1.4)
+    orm_adapter (0.5.0)
     public_suffix (5.0.1)
     puma (5.6.5)
       nio4r (~> 2.0)
@@ -161,6 +169,9 @@ GEM
     regexp_parser (2.7.0)
     reline (0.3.2)
       io-console (~> 0.5)
+    responders (3.1.0)
+      actionpack (>= 5.2)
+      railties (>= 5.2)
     rexml (3.2.5)
     rubyzip (2.3.2)
     sassc (2.4.0)
@@ -187,6 +198,8 @@ GEM
     timeout (0.3.2)
     tzinfo (2.0.6)
       concurrent-ruby (~> 1.0)
+    warden (1.2.9)
+      rack (>= 2.0.9)
     web-console (4.2.0)
       actionview (>= 6.0.0)
       activemodel (>= 6.0.0)
@@ -211,6 +224,7 @@ DEPENDENCIES
   byebug
   capybara
   debug
+  devise
   importmap-rails
   mysql2 (~> 0.5)
   puma (~> 5.0)

config/application.rb

@@ -7,7 +7,7 @@ require "active_model/railtie"
 require "active_record/railtie"
 # require "active_storage/engine"
 require "action_controller/railtie"
-# require "action_mailer/railtie"
+require "action_mailer/railtie"
 # require "action_mailbox/engine"
 # require "action_text/engine"
 require "action_view/railtie"