diff --git a/.gitattributes b/.gitattributes
new file mode 100644
index 0000000..5168571
--- /dev/null
+++ b/.gitattributes
@@ -0,0 +1,10 @@
+# See https://git-scm.com/docs/gitattributes for more about git attribute files.
+
+# Mark the database schema as having been generated.
+db/schema.rb linguist-generated
+
+# Mark the yarn lockfile as having been generated.
+yarn.lock linguist-generated
+
+# Mark any vendored files as having been vendored.
+vendor/* linguist-vendored
diff --git a/.gitignore b/.gitignore
index dde8780..adbbf52 100644
--- a/.gitignore
+++ b/.gitignore
@@ -9,7 +9,7 @@
 
 # Ignore the default SQLite database.
 /db/*.sqlite3
-/db/*.sqlite3-journal
+/db/*.sqlite3-*
 
 # Ignore all logfiles and tempfiles.
 /log/*
@@ -17,7 +17,12 @@
 !/log/.keep
 !/tmp/.keep
 
-# Ignore uploaded files in development
+# Ignore pidfiles, but keep the directory.
+/tmp/pids/*
+!/tmp/pids/
+!/tmp/pids/.keep
+
+# Ignore uploaded files in development.
 /storage/*
 !/storage/.keep
 
diff --git a/bin/rails b/bin/rails
index 5badb2f..21d3e02 100755
--- a/bin/rails
+++ b/bin/rails
@@ -1,9 +1,5 @@
 #!/usr/bin/env ruby
-begin
-  load File.expand_path('../spring', __FILE__)
-rescue LoadError => e
-  raise unless e.message.include?('spring')
-end
+load File.expand_path("spring", __dir__)
 APP_PATH = File.expand_path('../config/application', __dir__)
-require_relative '../config/boot'
-require 'rails/commands'
+require_relative "../config/boot"
+require "rails/commands"
diff --git a/bin/rake b/bin/rake
index d87d5f5..7327f47 100755
--- a/bin/rake
+++ b/bin/rake
@@ -1,9 +1,5 @@
 #!/usr/bin/env ruby
-begin
-  load File.expand_path('../spring', __FILE__)
-rescue LoadError => e
-  raise unless e.message.include?('spring')
-end
-require_relative '../config/boot'
-require 'rake'
+load File.expand_path("spring", __dir__)
+require_relative "../config/boot"
+require "rake"
 Rake.application.run
diff --git a/bin/setup b/bin/setup
index 94fd4d7..90700ac 100755
--- a/bin/setup
+++ b/bin/setup
@@ -1,6 +1,5 @@
 #!/usr/bin/env ruby
-require 'fileutils'
-include FileUtils
+require "fileutils"
 
 # path to your application root.
 APP_ROOT = File.expand_path('..', __dir__)
@@ -9,24 +8,25 @@ def system!(*args)
   system(*args) || abort("\n== Command #{args} failed ==")
 end
 
-chdir APP_ROOT do
-  # This script is a starting point to setup your application.
+FileUtils.chdir APP_ROOT do
+  # This script is a way to set up or update your development environment automatically.
+  # This script is idempotent, so that you can run it at any time and get an expectable outcome.
   # Add necessary setup steps to this file.
 
   puts '== Installing dependencies =='
   system! 'gem install bundler --conservative'
   system('bundle check') || system!('bundle install')
 
-  # Install JavaScript dependencies if using Yarn
-  # system('bin/yarn')
+  # Install JavaScript dependencies
+  system! 'bin/yarn'
 
   # puts "\n== Copying sample files =="
   # unless File.exist?('config/database.yml')
-  #   cp 'config/database.yml.sample', 'config/database.yml'
+  #   FileUtils.cp 'config/database.yml.sample', 'config/database.yml'
   # end
 
   puts "\n== Preparing database =="
-  system! 'bin/rails db:setup'
+  system! 'bin/rails db:prepare'
 
   puts "\n== Removing old logs and tempfiles =="
   system! 'bin/rails log:clear tmp:clear'
diff --git a/bin/spring b/bin/spring
index fb2ec2e..b4147e8 100755
--- a/bin/spring
+++ b/bin/spring
@@ -1,17 +1,14 @@
 #!/usr/bin/env ruby
+if !defined?(Spring) && [nil, "development", "test"].include?(ENV["RAILS_ENV"])
+  gem "bundler"
+  require "bundler"
 
-# This file loads spring without using Bundler, in order to be fast.
-# It gets overwritten when you run the `spring binstub` command.
-
-unless defined?(Spring)
-  require 'rubygems'
-  require 'bundler'
-
-  lockfile = Bundler::LockfileParser.new(Bundler.default_lockfile.read)
-  spring = lockfile.specs.detect { |spec| spec.name == "spring" }
-  if spring
+  # Load Spring without loading other gems in the Gemfile, for speed.
+  Bundler.locked_gems&.specs&.find { |spec| spec.name == "spring" }&.tap do |spring|
     Gem.use_paths Gem.dir, Bundler.bundle_path.to_s, *Gem.path
-    gem 'spring', spring.version
-    require 'spring/binstub'
+    gem "spring", spring.version
+    require "spring/binstub"
+  rescue Gem::LoadError
+    # Ignore when Spring is not installed.
   end
 end
diff --git a/bin/yarn b/bin/yarn
index 460dd56..9fab2c3 100755
--- a/bin/yarn
+++ b/bin/yarn
@@ -1,9 +1,15 @@
 #!/usr/bin/env ruby
 APP_ROOT = File.expand_path('..', __dir__)
 Dir.chdir(APP_ROOT) do
-  begin
-    exec "yarnpkg", *ARGV
-  rescue Errno::ENOENT
+  yarn = ENV["PATH"].split(File::PATH_SEPARATOR).
+    select { |dir| File.expand_path(dir) != __dir__ }.
+    product(["yarn", "yarn.cmd", "yarn.ps1"]).
+    map { |dir, file| File.expand_path(file, dir) }.
+    find { |file| File.executable?(file) }
+
+  if yarn
+    exec yarn, *ARGV
+  else
     $stderr.puts "Yarn executable was not detected in the system."
     $stderr.puts "Download Yarn at https://yarnpkg.com/en/docs/install"
     exit 1
diff --git a/config.ru b/config.ru
index f7ba0b5..4a3c09a 100644
--- a/config.ru
+++ b/config.ru
@@ -1,5 +1,6 @@
 # This file is used by Rack-based servers to start the application.
 
-require_relative 'config/environment'
+require_relative "config/environment"
 
 run Rails.application
+Rails.application.load_server
diff --git a/config/application.rb b/config/application.rb
index 9121937..b8885d8 100644
--- a/config/application.rb
+++ b/config/application.rb
@@ -1,6 +1,6 @@
-require_relative 'boot'
+require_relative "boot"
 
-require 'rails/all'
+require "rails/all"
 
 # Require the gems listed in Gemfile, including any gems
 # you've limited to :test, :development, or :production.
@@ -9,11 +9,14 @@
 module InterviewApp
   class Application < Rails::Application
     # Initialize configuration defaults for originally generated Rails version.
-    config.load_defaults 5.2
+    config.load_defaults 6.1
 
-    # Settings in config/environments/* take precedence over those specified here.
-    # Application configuration can go into files in config/initializers
-    # -- all .rb files in that directory are automatically loaded after loading
-    # the framework and any gems in your application.
+    # Configuration for the application, engines, and railties goes here.
+    #
+    # These settings can be overridden in specific environments using the files
+    # in config/environments, which are processed later.
+    #
+    # config.time_zone = "Central Time (US & Canada)"
+    # config.eager_load_paths << Rails.root.join("extras")
   end
 end
diff --git a/config/boot.rb b/config/boot.rb
index b9e460c..3cda23b 100644
--- a/config/boot.rb
+++ b/config/boot.rb
@@ -1,4 +1,4 @@
 ENV['BUNDLE_GEMFILE'] ||= File.expand_path('../Gemfile', __dir__)
 
-require 'bundler/setup' # Set up gems listed in the Gemfile.
-require 'bootsnap/setup' # Speed up boot time by caching expensive operations.
+require "bundler/setup" # Set up gems listed in the Gemfile.
+require "bootsnap/setup" # Speed up boot time by caching expensive operations.
diff --git a/config/cable.yml b/config/cable.yml
index c370038..5b6fd80 100644
--- a/config/cable.yml
+++ b/config/cable.yml
@@ -2,9 +2,9 @@ development:
   adapter: async
 
 test:
-  adapter: async
+  adapter: test
 
 production:
   adapter: redis
   url: <%= ENV.fetch("REDIS_URL") { "redis://localhost:6379/1" } %>
-  channel_prefix: interview-app_production
+  channel_prefix: interview_app_production
diff --git a/config/environment.rb b/config/environment.rb
index 426333b..cac5315 100644
--- a/config/environment.rb
+++ b/config/environment.rb
@@ -1,5 +1,5 @@
 # Load the Rails application.
-require_relative 'application'
+require_relative "application"
 
 # Initialize the Rails application.
 Rails.application.initialize!
diff --git a/config/environments/development.rb b/config/environments/development.rb
index 578f187..1cef18d 100644
--- a/config/environments/development.rb
+++ b/config/environments/development.rb
@@ -1,8 +1,10 @@
+require "active_support/core_ext/integer/time"
+
 Rails.application.configure do
   # Settings specified here will take precedence over those in config/application.rb.
 
-  # In the development environment your application's code is reloaded on
-  # every request. This slows down response time but is perfect for development
+  # In the development environment your application's code is reloaded any time
+  # it changes. This slows down response time but is perfect for development
   # since you don't have to restart the web server when you make code changes.
   config.cache_classes = false
 
@@ -16,6 +18,7 @@
   # Run rails dev:cache to toggle caching.
   # if Rails.root.join('tmp', 'caching-dev.txt').exist?
   #   config.action_controller.perform_caching = true
+  #   config.action_controller.enable_fragment_cache_logging = true
   #
   #   config.cache_store = :memory_store
   #   config.public_file_server.headers = {
@@ -29,7 +32,7 @@
 
   config.action_controller.perform_caching = true
 
-  # Store uploaded files on the local file system (see config/storage.yml for options)
+  # Store uploaded files on the local file system (see config/storage.yml for options).
   config.active_storage.service = :local
 
   # Don't care if the mailer can't send.
@@ -40,6 +43,12 @@
   # Print deprecation notices to the Rails logger.
   config.active_support.deprecation = :log
 
+  # Raise exceptions for disallowed deprecations.
+  config.active_support.disallowed_deprecation = :raise
+
+  # Tell Active Support which deprecation messages to disallow.
+  config.active_support.disallowed_deprecation_warnings = []
+
   # Raise an error on page load if there are pending migrations.
   config.active_record.migration_error = :page_load
 
@@ -54,10 +63,16 @@
   # Suppress logger output for asset requests.
   config.assets.quiet = true
 
-  # Raises error for missing translations
-  # config.action_view.raise_on_missing_translations = true
+  # Raises error for missing translations.
+  # config.i18n.raise_on_missing_translations = true
+
+  # Annotate rendered view with file names.
+  # config.action_view.annotate_rendered_view_with_filenames = true
 
   # Use an evented file watcher to asynchronously detect changes in source code,
   # routes, locales, etc. This feature depends on the listen gem.
   config.file_watcher = ActiveSupport::EventedFileUpdateChecker
+
+  # Uncomment if you wish to allow Action Cable access from any origin.
+  # config.action_cable.disable_request_forgery_protection = true
 end
diff --git a/config/environments/production.rb b/config/environments/production.rb
index 3d9682c..6101ef0 100644
--- a/config/environments/production.rb
+++ b/config/environments/production.rb
@@ -1,3 +1,5 @@
+require "active_support/core_ext/integer/time"
+
 Rails.application.configure do
   # Settings specified here will take precedence over those in config/application.rb.
 
@@ -22,26 +24,23 @@
   # Apache or NGINX already handles this.
   config.public_file_server.enabled = ENV['RAILS_SERVE_STATIC_FILES'].present?
 
-  # Compress JavaScripts and CSS.
-  config.assets.js_compressor = :uglifier
+  # Compress CSS using a preprocessor.
   # config.assets.css_compressor = :sass
 
   # Do not fallback to assets pipeline if a precompiled asset is missed.
   config.assets.compile = false
 
-  # `config.assets.precompile` and `config.assets.version` have moved to config/initializers/assets.rb
-
   # Enable serving of images, stylesheets, and JavaScripts from an asset server.
-  # config.action_controller.asset_host = 'http://assets.example.com'
+  # config.asset_host = 'http://assets.example.com'
 
   # Specifies the header that your server uses for sending files.
   # config.action_dispatch.x_sendfile_header = 'X-Sendfile' # for Apache
   # config.action_dispatch.x_sendfile_header = 'X-Accel-Redirect' # for NGINX
 
-  # Store uploaded files on the local file system (see config/storage.yml for options)
+  # Store uploaded files on the local file system (see config/storage.yml for options).
   config.active_storage.service = :local
 
-  # Mount Action Cable outside main process or domain
+  # Mount Action Cable outside main process or domain.
   # config.action_cable.mount_path = nil
   # config.action_cable.url = 'wss://example.com/cable'
   # config.action_cable.allowed_request_origins = [ 'http://example.com', /http:\/\/example.*/ ]
@@ -49,9 +48,9 @@
   # Force all access to the app over SSL, use Strict-Transport-Security, and use secure cookies.
   # config.force_ssl = true
 
-  # Use the lowest log level to ensure availability of diagnostic information
-  # when problems arise.
-  config.log_level = :debug
+  # Include generic and useful information about system operation, but avoid logging too much
+  # information to avoid inadvertent exposure of personally identifiable information (PII).
+  config.log_level = :info
 
   # Prepend all log lines with the following tags.
   config.log_tags = [ :request_id ]
@@ -59,9 +58,9 @@
   # Use a different cache store in production.
   # config.cache_store = :mem_cache_store
 
-  # Use a real queuing backend for Active Job (and separate queues per environment)
+  # Use a real queuing backend for Active Job (and separate queues per environment).
   # config.active_job.queue_adapter     = :resque
-  # config.active_job.queue_name_prefix = "interview-app_#{Rails.env}"
+  # config.active_job.queue_name_prefix = "interview_app_production"
 
   config.action_mailer.perform_caching = false
 
@@ -76,11 +75,17 @@
   # Send deprecation notices to registered listeners.
   config.active_support.deprecation = :notify
 
+  # Log disallowed deprecations.
+  config.active_support.disallowed_deprecation = :log
+
+  # Tell Active Support which deprecation messages to disallow.
+  config.active_support.disallowed_deprecation_warnings = []
+
   # Use default logging formatter so that PID and timestamp are not suppressed.
   config.log_formatter = ::Logger::Formatter.new
 
   # Use a different logger for distributed setups.
-  # require 'syslog/logger'
+  # require "syslog/logger"
   # config.logger = ActiveSupport::TaggedLogging.new(Syslog::Logger.new 'app-name')
 
   if ENV["RAILS_LOG_TO_STDOUT"].present?
@@ -91,4 +96,25 @@
 
   # Do not dump schema after migrations.
   config.active_record.dump_schema_after_migration = false
+
+  # Inserts middleware to perform automatic connection switching.
+  # The `database_selector` hash is used to pass options to the DatabaseSelector
+  # middleware. The `delay` is used to determine how long to wait after a write
+  # to send a subsequent read to the primary.
+  #
+  # The `database_resolver` class is used by the middleware to determine which
+  # database is appropriate to use based on the time delay.
+  #
+  # The `database_resolver_context` class is used by the middleware to set
+  # timestamps for the last write to the primary. The resolver uses the context
+  # class timestamps to determine how long to wait before reading from the
+  # replica.
+  #
+  # By default Rails will store a last write timestamp in the session. The
+  # DatabaseSelector middleware is designed as such you can define your own
+  # strategy for connection switching and pass that into the middleware through
+  # these configuration options.
+  # config.active_record.database_selector = { delay: 2.seconds }
+  # config.active_record.database_resolver = ActiveRecord::Middleware::DatabaseSelector::Resolver
+  # config.active_record.database_resolver_context = ActiveRecord::Middleware::DatabaseSelector::Resolver::Session
 end
diff --git a/config/environments/test.rb b/config/environments/test.rb
index 0a38fd3..93ed4f1 100644
--- a/config/environments/test.rb
+++ b/config/environments/test.rb
@@ -1,11 +1,15 @@
+require "active_support/core_ext/integer/time"
+
+# The test environment is used exclusively to run your application's
+# test suite. You never need to work with it otherwise. Remember that
+# your test database is "scratch space" for the test suite and is wiped
+# and recreated between test runs. Don't rely on the data there!
+
 Rails.application.configure do
   # Settings specified here will take precedence over those in config/application.rb.
 
-  # The test environment is used exclusively to run your application's
-  # test suite. You never need to work with it otherwise. Remember that
-  # your test database is "scratch space" for the test suite and is wiped
-  # and recreated between test runs. Don't rely on the data there!
-  config.cache_classes = true
+  config.cache_classes = false
+  config.action_view.cache_template_loading = true
 
   # Do not eager load code on boot. This avoids loading your whole application
   # just for the purpose of running a single test. If you are using a tool that
@@ -21,6 +25,7 @@
   # Show full error reports and disable caching.
   config.consider_all_requests_local       = true
   config.action_controller.perform_caching = false
+  config.cache_store = :null_store
 
   # Raise exceptions instead of rendering exception templates.
   config.action_dispatch.show_exceptions = false
@@ -28,7 +33,7 @@
   # Disable request forgery protection in test environment.
   config.action_controller.allow_forgery_protection = false
 
-  # Store uploaded files on the local file system in a temporary directory
+  # Store uploaded files on the local file system in a temporary directory.
   config.active_storage.service = :test
 
   config.action_mailer.perform_caching = false
@@ -41,6 +46,15 @@
   # Print deprecation notices to the stderr.
   config.active_support.deprecation = :stderr
 
-  # Raises error for missing translations
-  # config.action_view.raise_on_missing_translations = true
+  # Raise exceptions for disallowed deprecations.
+  config.active_support.disallowed_deprecation = :raise
+
+  # Tell Active Support which deprecation messages to disallow.
+  config.active_support.disallowed_deprecation_warnings = []
+
+  # Raises error for missing translations.
+  # config.i18n.raise_on_missing_translations = true
+
+  # Annotate rendered view with file names.
+  # config.action_view.annotate_rendered_view_with_filenames = true
 end
diff --git a/config/initializers/backtrace_silencers.rb b/config/initializers/backtrace_silencers.rb
index 59385cd..33699c3 100644
--- a/config/initializers/backtrace_silencers.rb
+++ b/config/initializers/backtrace_silencers.rb
@@ -1,7 +1,8 @@
 # Be sure to restart your server when you modify this file.
 
 # You can add backtrace silencers for libraries that you're using but don't wish to see in your backtraces.
-# Rails.backtrace_cleaner.add_silencer { |line| line =~ /my_noisy_library/ }
+# Rails.backtrace_cleaner.add_silencer { |line| /my_noisy_library/.match?(line) }
 
-# You can also remove all the silencers if you're trying to debug a problem that might stem from framework code.
-# Rails.backtrace_cleaner.remove_silencers!
+# You can also remove all the silencers if you're trying to debug a problem that might stem from framework code
+# by setting BACKTRACE=1 before calling your invocation, like "BACKTRACE=1 ./bin/rails runner 'MyClass.perform'".
+Rails.backtrace_cleaner.remove_silencers! if ENV["BACKTRACE"]
diff --git a/config/initializers/content_security_policy.rb b/config/initializers/content_security_policy.rb
index d3bcaa5..35d0f26 100644
--- a/config/initializers/content_security_policy.rb
+++ b/config/initializers/content_security_policy.rb
@@ -11,6 +11,8 @@
 #   policy.object_src  :none
 #   policy.script_src  :self, :https
 #   policy.style_src   :self, :https
+#   # If you are using webpack-dev-server then specify webpack-dev-server host
+#   policy.connect_src :self, :https, "http://localhost:3035", "ws://localhost:3035" if Rails.env.development?
 
 #   # Specify URI for violation reports
 #   # policy.report_uri "/csp-violation-report-endpoint"
@@ -19,6 +21,9 @@
 # If you are using UJS then enable automatic nonce generation
 # Rails.application.config.content_security_policy_nonce_generator = -> request { SecureRandom.base64(16) }
 
+# Set the nonce only to specific directives
+# Rails.application.config.content_security_policy_nonce_directives = %w(script-src)
+
 # Report CSP violations to a specified URI
 # For further information see the following documentation:
 # https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Content-Security-Policy-Report-Only
diff --git a/config/initializers/filter_parameter_logging.rb b/config/initializers/filter_parameter_logging.rb
index 4a994e1..4b34a03 100644
--- a/config/initializers/filter_parameter_logging.rb
+++ b/config/initializers/filter_parameter_logging.rb
@@ -1,4 +1,6 @@
 # Be sure to restart your server when you modify this file.
 
 # Configure sensitive parameters which will be filtered from the log file.
-Rails.application.config.filter_parameters += [:password]
+Rails.application.config.filter_parameters += [
+  :passw, :secret, :token, :_key, :crypt, :salt, :certificate, :otp, :ssn
+]
diff --git a/config/initializers/new_framework_defaults_6_1.rb b/config/initializers/new_framework_defaults_6_1.rb
new file mode 100644
index 0000000..9526b83
--- /dev/null
+++ b/config/initializers/new_framework_defaults_6_1.rb
@@ -0,0 +1,67 @@
+# Be sure to restart your server when you modify this file.
+#
+# This file contains migration options to ease your Rails 6.1 upgrade.
+#
+# Once upgraded flip defaults one by one to migrate to the new default.
+#
+# Read the Guide for Upgrading Ruby on Rails for more info on each option.
+
+# Support for inversing belongs_to -> has_many Active Record associations.
+# Rails.application.config.active_record.has_many_inversing = true
+
+# Track Active Storage variants in the database.
+# Rails.application.config.active_storage.track_variants = true
+
+# Apply random variation to the delay when retrying failed jobs.
+# Rails.application.config.active_job.retry_jitter = 0.15
+
+# Stop executing `after_enqueue`/`after_perform` callbacks if
+# `before_enqueue`/`before_perform` respectively halts with `throw :abort`.
+# Rails.application.config.active_job.skip_after_callbacks_if_terminated = true
+
+# Specify cookies SameSite protection level: either :none, :lax, or :strict.
+#
+# This change is not backwards compatible with earlier Rails versions.
+# It's best enabled when your entire app is migrated and stable on 6.1.
+# Rails.application.config.action_dispatch.cookies_same_site_protection = :lax
+
+# Generate CSRF tokens that are encoded in URL-safe Base64.
+#
+# This change is not backwards compatible with earlier Rails versions.
+# It's best enabled when your entire app is migrated and stable on 6.1.
+# Rails.application.config.action_controller.urlsafe_csrf_tokens = true
+
+# Specify whether `ActiveSupport::TimeZone.utc_to_local` returns a time with an
+# UTC offset or a UTC time.
+# ActiveSupport.utc_to_local_returns_utc_offset_times = true
+
+# Change the default HTTP status code to `308` when redirecting non-GET/HEAD
+# requests to HTTPS in `ActionDispatch::SSL` middleware.
+# Rails.application.config.action_dispatch.ssl_default_redirect_status = 308
+
+# Use new connection handling API. For most applications this won't have any
+# effect. For applications using multiple databases, this new API provides
+# support for granular connection swapping.
+# Rails.application.config.active_record.legacy_connection_handling = false
+
+# Make `form_with` generate non-remote forms by default.
+# Rails.application.config.action_view.form_with_generates_remote_forms = false
+
+# Set the default queue name for the analysis job to the queue adapter default.
+# Rails.application.config.active_storage.queues.analysis = nil
+
+# Set the default queue name for the purge job to the queue adapter default.
+# Rails.application.config.active_storage.queues.purge = nil
+
+# Set the default queue name for the incineration job to the queue adapter default.
+# Rails.application.config.action_mailbox.queues.incineration = nil
+
+# Set the default queue name for the routing job to the queue adapter default.
+# Rails.application.config.action_mailbox.queues.routing = nil
+
+# Set the default queue name for the mail deliver job to the queue adapter default.
+# Rails.application.config.action_mailer.deliver_later_queue_name = nil
+
+# Generate a `Link` header that gives a hint to modern browsers about
+# preloading assets when using `javascript_include_tag` and `stylesheet_link_tag`.
+# Rails.application.config.action_view.preload_links_header = true
diff --git a/config/initializers/permissions_policy.rb b/config/initializers/permissions_policy.rb
new file mode 100644
index 0000000..00f64d7
--- /dev/null
+++ b/config/initializers/permissions_policy.rb
@@ -0,0 +1,11 @@
+# Define an application-wide HTTP permissions policy. For further
+# information see https://developers.google.com/web/updates/2018/06/feature-policy
+#
+# Rails.application.config.permissions_policy do |f|
+#   f.camera      :none
+#   f.gyroscope   :none
+#   f.microphone  :none
+#   f.usb         :none
+#   f.fullscreen  :self
+#   f.payment     :self, "https://secure.example.com"
+# end
diff --git a/config/locales/en.yml b/config/locales/en.yml
index decc5a8..cf9b342 100644
--- a/config/locales/en.yml
+++ b/config/locales/en.yml
@@ -27,7 +27,7 @@
 #   'true': 'foo'
 #
 # To learn more, please read the Rails Internationalization guide
-# available at http://guides.rubyonrails.org/i18n.html.
+# available at https://guides.rubyonrails.org/i18n.html.
 
 en:
   hello: "Hello world"
diff --git a/config/puma.rb b/config/puma.rb
index a5eccf8..d9b3e83 100644
--- a/config/puma.rb
+++ b/config/puma.rb
@@ -4,19 +4,28 @@
 # the maximum value specified for Puma. Default is set to 5 threads for minimum
 # and maximum; this matches the default thread size of Active Record.
 #
-threads_count = ENV.fetch("RAILS_MAX_THREADS") { 5 }
-threads threads_count, threads_count
+max_threads_count = ENV.fetch("RAILS_MAX_THREADS") { 5 }
+min_threads_count = ENV.fetch("RAILS_MIN_THREADS") { max_threads_count }
+threads min_threads_count, max_threads_count
+
+# Specifies the `worker_timeout` threshold that Puma will use to wait before
+# terminating a worker in development environments.
+#
+worker_timeout 3600 if ENV.fetch("RAILS_ENV", "development") == "development"
 
 # Specifies the `port` that Puma will listen on to receive requests; default is 3000.
 #
-port        ENV.fetch("PORT") { 3000 }
+port ENV.fetch("PORT") { 3000 }
 
 # Specifies the `environment` that Puma will run in.
 #
 environment ENV.fetch("RAILS_ENV") { "development" }
 
+# Specifies the `pidfile` that Puma will use.
+pidfile ENV.fetch("PIDFILE") { "tmp/pids/server.pid" }
+
 # Specifies the number of `workers` to boot in clustered mode.
-# Workers are forked webserver processes. If using threads and workers together
+# Workers are forked web server processes. If using threads and workers together
 # the concurrency of the application would be max `threads` * `workers`.
 # Workers do not work on JRuby or Windows (both of which do not support
 # processes).
diff --git a/config/routes.rb b/config/routes.rb
index d0a5785..3b0b340 100644
--- a/config/routes.rb
+++ b/config/routes.rb
@@ -1,5 +1,5 @@
 Rails.application.routes.draw do
-  # For details on the DSL available within this file, see http://guides.rubyonrails.org/routing.html
+  # For details on the DSL available within this file, see https://guides.rubyonrails.org/routing.html
 
   resources :profiles do
     resources :links
diff --git a/config/spring.rb b/config/spring.rb
index 9fa7863..db5bf13 100644
--- a/config/spring.rb
+++ b/config/spring.rb
@@ -1,6 +1,6 @@
-%w[
-  .ruby-version
-  .rbenv-vars
-  tmp/restart.txt
-  tmp/caching-dev.txt
-].each { |path| Spring.watch(path) }
+Spring.watch(
+  ".ruby-version",
+  ".rbenv-vars",
+  "tmp/restart.txt",
+  "tmp/caching-dev.txt"
+)
diff --git a/db/migrate/20230929172157_add_service_name_to_active_storage_blobs.active_storage.rb b/db/migrate/20230929172157_add_service_name_to_active_storage_blobs.active_storage.rb
new file mode 100644
index 0000000..a15c6ce
--- /dev/null
+++ b/db/migrate/20230929172157_add_service_name_to_active_storage_blobs.active_storage.rb
@@ -0,0 +1,22 @@
+# This migration comes from active_storage (originally 20190112182829)
+class AddServiceNameToActiveStorageBlobs < ActiveRecord::Migration[6.0]
+  def up
+    return unless table_exists?(:active_storage_blobs)
+
+    unless column_exists?(:active_storage_blobs, :service_name)
+      add_column :active_storage_blobs, :service_name, :string
+
+      if configured_service = ActiveStorage::Blob.service.name
+        ActiveStorage::Blob.unscoped.update_all(service_name: configured_service)
+      end
+
+      change_column :active_storage_blobs, :service_name, :string, null: false
+    end
+  end
+
+  def down
+    return unless table_exists?(:active_storage_blobs)
+
+    remove_column :active_storage_blobs, :service_name
+  end
+end
diff --git a/db/migrate/20230929172158_create_active_storage_variant_records.active_storage.rb b/db/migrate/20230929172158_create_active_storage_variant_records.active_storage.rb
new file mode 100644
index 0000000..94ac83a
--- /dev/null
+++ b/db/migrate/20230929172158_create_active_storage_variant_records.active_storage.rb
@@ -0,0 +1,27 @@
+# This migration comes from active_storage (originally 20191206030411)
+class CreateActiveStorageVariantRecords < ActiveRecord::Migration[6.0]
+  def change
+    return unless table_exists?(:active_storage_blobs)
+
+    # Use Active Record's configured type for primary key
+    create_table :active_storage_variant_records, id: primary_key_type, if_not_exists: true do |t|
+      t.belongs_to :blob, null: false, index: false, type: blobs_primary_key_type
+      t.string :variation_digest, null: false
+
+      t.index %i[ blob_id variation_digest ], name: "index_active_storage_variant_records_uniqueness", unique: true
+      t.foreign_key :active_storage_blobs, column: :blob_id
+    end
+  end
+
+  private
+    def primary_key_type
+      config = Rails.configuration.generators
+      config.options[config.orm][:primary_key_type] || :primary_key
+    end
+
+    def blobs_primary_key_type
+      pkey_name = connection.primary_key(:active_storage_blobs)
+      pkey_column = connection.columns(:active_storage_blobs).find { |c| c.name == pkey_name }
+      pkey_column.bigint? ? :bigint : pkey_column.type
+    end
+end
diff --git a/db/schema.rb b/db/schema.rb
index f4f7f91..e2d8184 100644
--- a/db/schema.rb
+++ b/db/schema.rb
@@ -10,7 +10,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 2020_11_22_030919) do
+ActiveRecord::Schema.define(version: 2023_09_29_172158) do
 
   create_table "links", force: :cascade do |t|
     t.string "name"