diff --git a/.rubocop.yml b/.rubocop.yml
deleted file mode 100644
index 25f5ca5..0000000
--- a/.rubocop.yml
+++ /dev/null
@@ -1,5 +0,0 @@
-# Omakase Ruby styling for Rails
-inherit_gem:
-  rubocop-rails-omakase: rubocop.yml
-
-# Your own specialized rules go here
diff --git a/Dockerfile b/Dockerfile
index 0639c80..f19c5f1 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,36 +1,25 @@
 # syntax = docker/dockerfile:1
 
-# This Dockerfile is designed for production, not development. Use with Kamal or build'n'run by hand:
-# docker build -t my-app .
-# docker run -d -p 80:80 -p 443:443 --name my-app -e RAILS_MASTER_KEY=<value from config/master.key> my-app
-
-# For a containerized dev environment, see Dev Containers: https://guides.rubyonrails.org/getting_started_with_devcontainer.html
-
-# Make sure RUBY_VERSION matches the Ruby version in .ruby-version
-ARG RUBY_VERSION=3.3.1
-FROM docker.io/library/ruby:$RUBY_VERSION-slim AS base
+# Make sure RUBY_VERSION matches the Ruby version in .ruby-version and Gemfile
+ARG RUBY_VERSION=3.2.2
+FROM registry.docker.com/library/ruby:$RUBY_VERSION-slim as base
 
 # Rails app lives here
 WORKDIR /rails
 
-# Install base packages
-RUN apt-get update -qq && \
-    apt-get install --no-install-recommends -y curl libjemalloc2 libsqlite3-0 libvips && \
-    rm -rf /var/lib/apt/lists /var/cache/apt/archives
-
 # Set production environment
 ENV RAILS_ENV="production" \
     BUNDLE_DEPLOYMENT="1" \
     BUNDLE_PATH="/usr/local/bundle" \
     BUNDLE_WITHOUT="development"
 
+
 # Throw-away build stage to reduce size of final image
-FROM base AS build
+FROM base as build
 
 # Install packages needed to build gems
 RUN apt-get update -qq && \
-    apt-get install --no-install-recommends -y build-essential git pkg-config && \
-    rm -rf /var/lib/apt/lists /var/cache/apt/archives
+    apt-get install --no-install-recommends -y build-essential git libvips pkg-config
 
 # Install application gems
 COPY Gemfile Gemfile.lock ./
@@ -38,6 +27,7 @@ RUN bundle install && \
     rm -rf ~/.bundle/ "${BUNDLE_PATH}"/ruby/*/cache "${BUNDLE_PATH}"/ruby/*/bundler/gems/*/.git && \
     bundle exec bootsnap precompile --gemfile
 
+
 # Copy application code
 COPY . .
 
@@ -48,20 +38,24 @@ RUN bundle exec bootsnap precompile app/ lib/
 RUN SECRET_KEY_BASE_DUMMY=1 ./bin/rails assets:precompile
 
 
-
-
 # Final stage for app image
 FROM base
 
+# Install packages needed for deployment
+RUN apt-get update -qq && \
+    apt-get install --no-install-recommends -y curl libsqlite3-0 libvips libjemalloc2 && \
+    rm -rf /var/lib/apt/lists /var/cache/apt/archives
+
 # Copy built artifacts: gems, application
-COPY --from=build "${BUNDLE_PATH}" "${BUNDLE_PATH}"
+COPY --from=build /usr/local/bundle /usr/local/bundle
 COPY --from=build /rails /rails
 
 # Run and own only the runtime files as a non-root user for security
-RUN groupadd --system --gid 1000 rails && \
-    useradd rails --uid 1000 --gid 1000 --create-home --shell /bin/bash && \
+RUN useradd rails --create-home --shell /bin/bash && \
     chown -R rails:rails db log storage tmp
-USER 1000:1000
+USER rails:rails
+
+ENV LD_PRELOAD=/usr/lib/x86_64-linux-gnu/libjemalloc.so.2
 
 # Entrypoint prepares the database.
 ENTRYPOINT ["/rails/bin/docker-entrypoint"]
diff --git a/Gemfile b/Gemfile
index ef1c2ba..519b478 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,61 +1,32 @@
 source "https://rubygems.org"
+git_source(:github) { |repo| "https://github.com/#{repo}.git" }
 
-gem "rails", github: "rails/rails", branch: "main"
-# The modern asset pipeline for Rails [https://github.com/rails/propshaft]
-gem "propshaft"
-# Use sqlite3 as the database for Active Record
-gem "sqlite3", ">= 1.4"
-# Use the Puma web server [https://github.com/puma/puma]
-gem "puma", ">= 5.0"
-# Use JavaScript with ESM import maps [https://github.com/rails/importmap-rails]
+gem "rails", "7.1.3.2"
+gem "sprockets-rails"
+gem "sqlite3", "< 2"
+gem "puma"
 gem "importmap-rails"
-# Hotwire's SPA-like page accelerator [https://turbo.hotwired.dev]
 gem "turbo-rails"
-# Hotwire's modest JavaScript framework [https://stimulus.hotwired.dev]
 gem "stimulus-rails"
-# Build JSON APIs with ease [https://github.com/rails/jbuilder]
 gem "jbuilder"
-# Use Redis adapter to run Action Cable in production
-# gem "redis", ">= 4.0.1"
 
-# Use Kredis to get higher-level data types in Redis [https://github.com/rails/kredis]
-# gem "kredis"
-
-# 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[ windows jruby ]
-
-# Reduces boot times through caching; required in config/boot.rb
 gem "bootsnap", require: false
 
-# Deploy this application anywhere as a Docker container [https://kamal-deploy.org]
-# gem "kamal", require: false
-
-# Use Active Storage variants [https://guides.rubyonrails.org/active_storage_overview.html#transforming-images]
 # gem "image_processing", "~> 1.2"
 
 group :development, :test do
-  # See https://guides.rubyonrails.org/debugging_rails_applications.html#debugging-with-the-debug-gem
-  gem "debug", platforms: %i[ mri windows ], require: "debug/prelude"
-
-  # Static analysis for security vulnerabilities [https://brakemanscanner.org/]
-  gem "brakeman", require: false
-
-  # Omakase Ruby styling [https://github.com/rails/rubocop-rails-omakase/]
-  gem "rubocop-rails-omakase", require: false
+  gem "debug", platforms: %i[mri mingw x64_mingw]
 end
 
 group :development do
-  # Use console on exceptions pages [https://github.com/rails/web-console]
+  gem "standard"
   gem "web-console"
 end
 
 group :test do
-  # Use system testing [https://guides.rubyonrails.org/testing.html#system-testing]
   gem "capybara"
   gem "selenium-webdriver"
+  gem "webdrivers"
 end
 
 gem "tailwindcss-rails", "~> 2.0"
diff --git a/Gemfile.lock b/Gemfile.lock
index 5b0b297..e7af628 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,31 +1,35 @@
-GIT
-  remote: https://github.com/rails/rails.git
-  revision: 5bec50bc70380bb1e70e8fb0a1654130042b1f16
-  branch: main
+GEM
+  remote: https://rubygems.org/
   specs:
-    actioncable (8.0.0.alpha)
-      actionpack (= 8.0.0.alpha)
-      activesupport (= 8.0.0.alpha)
+    actioncable (7.1.3.2)
+      actionpack (= 7.1.3.2)
+      activesupport (= 7.1.3.2)
       nio4r (~> 2.0)
       websocket-driver (>= 0.6.1)
       zeitwerk (~> 2.6)
-    actionmailbox (8.0.0.alpha)
-      actionpack (= 8.0.0.alpha)
-      activejob (= 8.0.0.alpha)
-      activerecord (= 8.0.0.alpha)
-      activestorage (= 8.0.0.alpha)
-      activesupport (= 8.0.0.alpha)
-      mail (>= 2.8.0)
-    actionmailer (8.0.0.alpha)
-      actionpack (= 8.0.0.alpha)
-      actionview (= 8.0.0.alpha)
-      activejob (= 8.0.0.alpha)
-      activesupport (= 8.0.0.alpha)
-      mail (>= 2.8.0)
+    actionmailbox (7.1.3.2)
+      actionpack (= 7.1.3.2)
+      activejob (= 7.1.3.2)
+      activerecord (= 7.1.3.2)
+      activestorage (= 7.1.3.2)
+      activesupport (= 7.1.3.2)
+      mail (>= 2.7.1)
+      net-imap
+      net-pop
+      net-smtp
+    actionmailer (7.1.3.2)
+      actionpack (= 7.1.3.2)
+      actionview (= 7.1.3.2)
+      activejob (= 7.1.3.2)
+      activesupport (= 7.1.3.2)
+      mail (~> 2.5, >= 2.5.4)
+      net-imap
+      net-pop
+      net-smtp
       rails-dom-testing (~> 2.2)
-    actionpack (8.0.0.alpha)
-      actionview (= 8.0.0.alpha)
-      activesupport (= 8.0.0.alpha)
+    actionpack (7.1.3.2)
+      actionview (= 7.1.3.2)
+      activesupport (= 7.1.3.2)
       nokogiri (>= 1.8.5)
       racc
       rack (>= 2.2.4)
@@ -33,82 +37,53 @@ GIT
       rack-test (>= 0.6.3)
       rails-dom-testing (~> 2.2)
       rails-html-sanitizer (~> 1.6)
-      useragent (~> 0.16)
-    actiontext (8.0.0.alpha)
-      actionpack (= 8.0.0.alpha)
-      activerecord (= 8.0.0.alpha)
-      activestorage (= 8.0.0.alpha)
-      activesupport (= 8.0.0.alpha)
+    actiontext (7.1.3.2)
+      actionpack (= 7.1.3.2)
+      activerecord (= 7.1.3.2)
+      activestorage (= 7.1.3.2)
+      activesupport (= 7.1.3.2)
       globalid (>= 0.6.0)
       nokogiri (>= 1.8.5)
-    actionview (8.0.0.alpha)
-      activesupport (= 8.0.0.alpha)
+    actionview (7.1.3.2)
+      activesupport (= 7.1.3.2)
       builder (~> 3.1)
       erubi (~> 1.11)
       rails-dom-testing (~> 2.2)
       rails-html-sanitizer (~> 1.6)
-    activejob (8.0.0.alpha)
-      activesupport (= 8.0.0.alpha)
+    activejob (7.1.3.2)
+      activesupport (= 7.1.3.2)
       globalid (>= 0.3.6)
-    activemodel (8.0.0.alpha)
-      activesupport (= 8.0.0.alpha)
-    activerecord (8.0.0.alpha)
-      activemodel (= 8.0.0.alpha)
-      activesupport (= 8.0.0.alpha)
+    activemodel (7.1.3.2)
+      activesupport (= 7.1.3.2)
+    activerecord (7.1.3.2)
+      activemodel (= 7.1.3.2)
+      activesupport (= 7.1.3.2)
       timeout (>= 0.4.0)
-    activestorage (8.0.0.alpha)
-      actionpack (= 8.0.0.alpha)
-      activejob (= 8.0.0.alpha)
-      activerecord (= 8.0.0.alpha)
-      activesupport (= 8.0.0.alpha)
+    activestorage (7.1.3.2)
+      actionpack (= 7.1.3.2)
+      activejob (= 7.1.3.2)
+      activerecord (= 7.1.3.2)
+      activesupport (= 7.1.3.2)
       marcel (~> 1.0)
-    activesupport (8.0.0.alpha)
+    activesupport (7.1.3.2)
       base64
       bigdecimal
-      concurrent-ruby (~> 1.0, >= 1.3.1)
+      concurrent-ruby (~> 1.0, >= 1.0.2)
       connection_pool (>= 2.2.5)
       drb
       i18n (>= 1.6, < 2)
-      logger
       minitest (>= 5.1)
-      tzinfo (~> 2.0, >= 2.0.5)
-    rails (8.0.0.alpha)
-      actioncable (= 8.0.0.alpha)
-      actionmailbox (= 8.0.0.alpha)
-      actionmailer (= 8.0.0.alpha)
-      actionpack (= 8.0.0.alpha)
-      actiontext (= 8.0.0.alpha)
-      actionview (= 8.0.0.alpha)
-      activejob (= 8.0.0.alpha)
-      activemodel (= 8.0.0.alpha)
-      activerecord (= 8.0.0.alpha)
-      activestorage (= 8.0.0.alpha)
-      activesupport (= 8.0.0.alpha)
-      bundler (>= 1.15.0)
-      railties (= 8.0.0.alpha)
-    railties (8.0.0.alpha)
-      actionpack (= 8.0.0.alpha)
-      activesupport (= 8.0.0.alpha)
-      irb (~> 1.13)
-      rackup (>= 1.0.0)
-      rake (>= 12.2)
-      thor (~> 1.0, >= 1.2.2)
-      zeitwerk (~> 2.6)
-
-GEM
-  remote: https://rubygems.org/
-  specs:
-    addressable (2.8.7)
-      public_suffix (>= 2.0.2, < 7.0)
+      mutex_m
+      tzinfo (~> 2.0)
+    addressable (2.8.6)
+      public_suffix (>= 2.0.2, < 6.0)
     ast (2.4.2)
     base64 (0.2.0)
-    bigdecimal (3.1.8)
+    bigdecimal (3.1.7)
     bindex (0.8.1)
     bootsnap (1.18.3)
       msgpack (~> 1.2)
-    brakeman (6.1.2)
-      racc
-    builder (3.3.0)
+    builder (3.2.4)
     capybara (3.40.0)
       addressable
       matrix
@@ -118,7 +93,7 @@ GEM
       rack-test (>= 0.6.3)
       regexp_parser (>= 1.5, < 3.0)
       xpath (~> 3.2)
-    concurrent-ruby (1.3.3)
+    concurrent-ruby (1.2.3)
     connection_pool (2.4.1)
     crass (1.0.6)
     date (3.3.4)
@@ -126,25 +101,25 @@ GEM
       irb (~> 1.10)
       reline (>= 0.3.8)
     drb (2.2.1)
-    erubi (1.13.0)
+    erubi (1.12.0)
     globalid (1.2.1)
       activesupport (>= 6.1)
-    i18n (1.14.5)
+    i18n (1.14.4)
       concurrent-ruby (~> 1.0)
     importmap-rails (2.0.1)
       actionpack (>= 6.0.0)
       activesupport (>= 6.0.0)
       railties (>= 6.0.0)
     io-console (0.7.2)
-    irb (1.13.2)
-      rdoc (>= 4.0.0)
+    irb (1.12.0)
+      rdoc
       reline (>= 0.4.2)
-    jbuilder (2.12.0)
+    jbuilder (2.11.5)
       actionview (>= 5.0.0)
       activesupport (>= 5.0.0)
     json (2.7.2)
     language_server-protocol (3.17.0.3)
-    logger (1.6.0)
+    lint_roller (1.1.0)
     loofah (2.22.0)
       crass (~> 1.0.2)
       nokogiri (>= 1.12.0)
@@ -156,9 +131,10 @@ GEM
     marcel (1.0.4)
     matrix (0.4.2)
     mini_mime (1.1.5)
-    minitest (5.24.0)
+    minitest (5.22.3)
     msgpack (1.7.2)
-    net-imap (0.4.13)
+    mutex_m (0.2.0)
+    net-imap (0.4.10)
       date
       net-protocol
     net-pop (0.1.2)
@@ -167,29 +143,22 @@ GEM
       timeout
     net-smtp (0.5.0)
       net-protocol
-    nio4r (2.7.3)
-    nokogiri (1.16.6-aarch64-linux)
+    nio4r (2.7.1)
+    nokogiri (1.16.4-arm64-darwin)
       racc (~> 1.4)
-    nokogiri (1.16.6-arm64-darwin)
+    nokogiri (1.16.4-x86_64-linux)
       racc (~> 1.4)
-    nokogiri (1.16.6-x86_64-linux)
-      racc (~> 1.4)
-    parallel (1.25.1)
-    parser (3.3.3.0)
+    parallel (1.24.0)
+    parser (3.3.0.5)
       ast (~> 2.4.1)
       racc
-    propshaft (0.9.0)
-      actionpack (>= 7.0.0)
-      activesupport (>= 7.0.0)
-      rack
-      railties (>= 7.0.0)
     psych (5.1.2)
       stringio
-    public_suffix (6.0.0)
+    public_suffix (5.0.5)
     puma (6.4.2)
       nio4r (~> 2.0)
-    racc (1.8.0)
-    rack (3.1.3)
+    racc (1.7.3)
+    rack (3.0.10)
     rack-session (2.0.0)
       rack (>= 3.0.0)
     rack-test (2.1.0)
@@ -197,6 +166,20 @@ GEM
     rackup (2.1.0)
       rack (>= 3)
       webrick (~> 1.8)
+    rails (7.1.3.2)
+      actioncable (= 7.1.3.2)
+      actionmailbox (= 7.1.3.2)
+      actionmailer (= 7.1.3.2)
+      actionpack (= 7.1.3.2)
+      actiontext (= 7.1.3.2)
+      actionview (= 7.1.3.2)
+      activejob (= 7.1.3.2)
+      activemodel (= 7.1.3.2)
+      activerecord (= 7.1.3.2)
+      activestorage (= 7.1.3.2)
+      activesupport (= 7.1.3.2)
+      bundler (>= 1.15.0)
+      railties (= 7.1.3.2)
     rails-dom-testing (2.2.0)
       activesupport (>= 5.0.0)
       minitest
@@ -204,16 +187,23 @@ GEM
     rails-html-sanitizer (1.6.0)
       loofah (~> 2.21)
       nokogiri (~> 1.14)
+    railties (7.1.3.2)
+      actionpack (= 7.1.3.2)
+      activesupport (= 7.1.3.2)
+      irb
+      rackup (>= 1.0.0)
+      rake (>= 12.2)
+      thor (~> 1.0, >= 1.2.2)
+      zeitwerk (~> 2.6)
     rainbow (3.1.1)
     rake (13.2.1)
-    rdoc (6.7.0)
+    rdoc (6.6.3.1)
       psych (>= 4.0.0)
-    regexp_parser (2.9.2)
-    reline (0.5.9)
+    regexp_parser (2.9.0)
+    reline (0.5.2)
       io-console (~> 0.5)
-    rexml (3.3.0)
-      strscan
-    rubocop (1.64.1)
+    rexml (3.2.6)
+    rubocop (1.62.1)
       json (~> 2.3)
       language_server-protocol (>= 3.17.0)
       parallel (~> 1.10)
@@ -224,45 +214,45 @@ GEM
       rubocop-ast (>= 1.31.1, < 2.0)
       ruby-progressbar (~> 1.7)
       unicode-display_width (>= 2.4.0, < 3.0)
-    rubocop-ast (1.31.3)
-      parser (>= 3.3.1.0)
-    rubocop-minitest (0.35.0)
-      rubocop (>= 1.61, < 2.0)
-      rubocop-ast (>= 1.31.1, < 2.0)
-    rubocop-performance (1.21.1)
+    rubocop-ast (1.31.2)
+      parser (>= 3.3.0.4)
+    rubocop-performance (1.20.2)
       rubocop (>= 1.48.1, < 2.0)
-      rubocop-ast (>= 1.31.1, < 2.0)
-    rubocop-rails (2.25.0)
-      activesupport (>= 4.2.0)
-      rack (>= 1.1)
-      rubocop (>= 1.33.0, < 2.0)
-      rubocop-ast (>= 1.31.1, < 2.0)
-    rubocop-rails-omakase (1.0.0)
-      rubocop
-      rubocop-minitest
-      rubocop-performance
-      rubocop-rails
+      rubocop-ast (>= 1.30.0, < 2.0)
     ruby-progressbar (1.13.0)
     rubyzip (2.3.2)
-    selenium-webdriver (4.22.0)
-      base64 (~> 0.2)
-      logger (~> 1.4)
+    selenium-webdriver (4.10.0)
       rexml (~> 3.2, >= 3.2.5)
       rubyzip (>= 1.2.2, < 3.0)
       websocket (~> 1.0)
-    sqlite3 (2.0.2-aarch64-linux-gnu)
-    sqlite3 (2.0.2-arm64-darwin)
-    sqlite3 (2.0.2-x86_64-linux-gnu)
+    sprockets (4.2.1)
+      concurrent-ruby (~> 1.0)
+      rack (>= 2.2.4, < 4)
+    sprockets-rails (3.4.2)
+      actionpack (>= 5.2)
+      activesupport (>= 5.2)
+      sprockets (>= 3.0.0)
+    sqlite3 (1.7.3-arm64-darwin)
+    sqlite3 (1.7.3-x86_64-linux)
+    standard (1.35.1)
+      language_server-protocol (~> 3.17.0.2)
+      lint_roller (~> 1.0)
+      rubocop (~> 1.62.0)
+      standard-custom (~> 1.0.0)
+      standard-performance (~> 1.3)
+    standard-custom (1.0.2)
+      lint_roller (~> 1.0)
+      rubocop (~> 1.50)
+    standard-performance (1.3.1)
+      lint_roller (~> 1.1)
+      rubocop-performance (~> 1.20.2)
     stimulus-rails (1.3.3)
       railties (>= 6.0.0)
-    stringio (3.1.1)
-    strscan (3.1.0)
-    tailwindcss-rails (2.6.1-aarch64-linux)
-      railties (>= 7.0.0)
-    tailwindcss-rails (2.6.1-arm64-darwin)
-      railties (>= 7.0.0)
-    tailwindcss-rails (2.6.1-x86_64-linux)
-      railties (>= 7.0.0)
+    stringio (3.1.0)
+    tailwindcss-rails (2.4.0-arm64-darwin)
+      railties (>= 6.0.0)
+    tailwindcss-rails (2.4.0-x86_64-linux)
+      railties (>= 6.0.0)
     thor (1.3.1)
     timeout (0.4.1)
     turbo-rails (2.0.5)
@@ -272,12 +262,15 @@ GEM
     tzinfo (2.0.6)
       concurrent-ruby (~> 1.0)
     unicode-display_width (2.5.0)
-    useragent (0.16.10)
     web-console (4.2.1)
       actionview (>= 6.0.0)
       activemodel (>= 6.0.0)
       bindex (>= 0.4.0)
       railties (>= 6.0.0)
+    webdrivers (5.3.1)
+      nokogiri (~> 1.6)
+      rubyzip (>= 1.3.0)
+      selenium-webdriver (~> 4.0, < 4.11)
     webrick (1.8.1)
     websocket (1.2.10)
     websocket-driver (0.7.6)
@@ -285,31 +278,29 @@ GEM
     websocket-extensions (0.1.5)
     xpath (3.2.0)
       nokogiri (~> 1.8)
-    zeitwerk (2.6.16)
+    zeitwerk (2.6.13)
 
 PLATFORMS
-  aarch64-linux
   arm64-darwin-23
   x86_64-linux
 
 DEPENDENCIES
   bootsnap
-  brakeman
   capybara
   debug
   importmap-rails
   jbuilder
-  propshaft
-  puma (>= 5.0)
-  rails!
-  rubocop-rails-omakase
+  puma
+  rails (= 7.1.3.2)
   selenium-webdriver
-  sqlite3 (>= 1.4)
+  sprockets-rails
+  sqlite3 (< 2)
+  standard
   stimulus-rails
   tailwindcss-rails (~> 2.0)
   turbo-rails
-  tzinfo-data
   web-console
+  webdrivers
 
 BUNDLED WITH
    2.5.9
diff --git a/app/assets/config/manifest.js b/app/assets/config/manifest.js
new file mode 100644
index 0000000..b06fc42
--- /dev/null
+++ b/app/assets/config/manifest.js
@@ -0,0 +1,5 @@
+//= link_tree ../images
+//= link_directory ../stylesheets .css
+//= link_tree ../../javascript .js
+//= link_tree ../../../vendor/javascript .js
+//= link_tree ../builds
diff --git a/app/helpers/expenses_helper.rb b/app/helpers/expenses_helper.rb
index 263c8f3..739166e 100644
--- a/app/helpers/expenses_helper.rb
+++ b/app/helpers/expenses_helper.rb
@@ -2,6 +2,6 @@ module ExpensesHelper
   def expense_periods
     Expense
       .periods
-      .map { |key, value| [ key.titleize, Expense.periods.key(value) ] }
+      .map { |key, value| [key.titleize, Expense.periods.key(value)] }
   end
 end
diff --git a/app/helpers/incomes_helper.rb b/app/helpers/incomes_helper.rb
index 8275806..9d6b84f 100644
--- a/app/helpers/incomes_helper.rb
+++ b/app/helpers/incomes_helper.rb
@@ -2,6 +2,6 @@ module IncomesHelper
   def members
     Member
       .all
-      .map { |member, value| [ member.name, member.id ] }
+      .map { |member, value| [member.name, member.id] }
   end
 end
diff --git a/bin/brakeman b/bin/brakeman
deleted file mode 100755
index ace1c9b..0000000
--- a/bin/brakeman
+++ /dev/null
@@ -1,7 +0,0 @@
-#!/usr/bin/env ruby
-require "rubygems"
-require "bundler/setup"
-
-ARGV.unshift("--ensure-latest")
-
-load Gem.bin_path("brakeman", "brakeman")
diff --git a/bin/docker-entrypoint b/bin/docker-entrypoint
index 840d093..dffd4ba 100755
--- a/bin/docker-entrypoint
+++ b/bin/docker-entrypoint
@@ -1,12 +1,7 @@
 #!/bin/bash -e
 
-# Enable jemalloc for reduced memory usage and latency.
-if [ -z "${LD_PRELOAD+x}" ] && [ -f /usr/lib/*/libjemalloc.so.2 ]; then
-  export LD_PRELOAD="$(echo /usr/lib/*/libjemalloc.so.2)"
-fi
-
 # If running the rails server then create or migrate existing database
-if [ "${1}" == "./bin/rails" ] && [ "${2}" == "server" ]; then
+if [ "${*}" == "./bin/rails server" ]; then
   ./bin/rails db:prepare
 fi
 
diff --git a/bin/rubocop b/bin/rubocop
deleted file mode 100755
index 40330c0..0000000
--- a/bin/rubocop
+++ /dev/null
@@ -1,8 +0,0 @@
-#!/usr/bin/env ruby
-require "rubygems"
-require "bundler/setup"
-
-# explicit rubocop config increases performance slightly while avoiding config confusion.
-ARGV.unshift("--config", File.expand_path("../.rubocop.yml", __dir__))
-
-load Gem.bin_path("rubocop", "rubocop")
diff --git a/bin/setup b/bin/setup
index 57866ca..3cd5a9d 100755
--- a/bin/setup
+++ b/bin/setup
@@ -1,8 +1,8 @@
 #!/usr/bin/env ruby
 require "fileutils"
 
+# path to your application root.
 APP_ROOT = File.expand_path("..", __dir__)
-APP_NAME = "family_budget"
 
 def system!(*args)
   system(*args, exception: true)
@@ -30,8 +30,4 @@ FileUtils.chdir APP_ROOT do
 
   puts "\n== Restarting application server =="
   system! "bin/rails restart"
-
-  # puts "\n== Configuring puma-dev =="
-  # system "ln -nfs #{APP_ROOT} ~/.puma-dev/#{APP_NAME}"
-  # system "curl -Is https://#{APP_NAME}.test/up | head -n 1"
 end
diff --git a/config/application.rb b/config/application.rb
index 36fd491..3526226 100644
--- a/config/application.rb
+++ b/config/application.rb
@@ -9,7 +9,7 @@ Bundler.require(*Rails.groups)
 module FamilyBudget
   class Application < Rails::Application
     # Initialize configuration defaults for originally generated Rails version.
-    config.load_defaults 8.0
+    config.load_defaults 7.1
 
     # Please, add to the `ignore` list any other `lib` subdirectories that do
     # not contain `.rb` files, or that should not be reloaded or eager loaded.
diff --git a/config/environments/development.rb b/config/environments/development.rb
index d969821..2e7fb48 100644
--- a/config/environments/development.rb
+++ b/config/environments/development.rb
@@ -14,7 +14,7 @@ Rails.application.configure do
   # Show full error reports.
   config.consider_all_requests_local = true
 
-  # Enable server timing.
+  # Enable server timing
   config.server_timing = true
 
   # Enable/disable caching. By default caching is disabled.
@@ -24,7 +24,9 @@ Rails.application.configure do
     config.action_controller.enable_fragment_cache_logging = true
 
     config.cache_store = :memory_store
-    config.public_file_server.headers = { "Cache-Control" => "public, max-age=#{2.days.to_i}" }
+    config.public_file_server.headers = {
+      "Cache-Control" => "public, max-age=#{2.days.to_i}"
+    }
   else
     config.action_controller.perform_caching = false
 
@@ -39,11 +41,15 @@ Rails.application.configure do
 
   config.action_mailer.perform_caching = false
 
-  config.action_mailer.default_url_options = { host: "localhost", port: 3000 }
-
   # 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
 
@@ -60,14 +66,11 @@ Rails.application.configure do
   # config.i18n.raise_on_missing_translations = true
 
   # Annotate rendered view with file names.
-  config.action_view.annotate_rendered_view_with_filenames = true
+  # config.action_view.annotate_rendered_view_with_filenames = true
 
   # Uncomment if you wish to allow Action Cable access from any origin.
   # config.action_cable.disable_request_forgery_protection = true
 
-  # Raise error when a before_action's only/except options reference missing actions.
+  # Raise error when a before_action's only/except options reference missing actions
   config.action_controller.raise_on_missing_callback_actions = true
-
-  # Apply autocorrection by RuboCop to files generated by `bin/rails generate`.
-  # config.generators.apply_rubocop_autocorrect_after_generate!
 end
diff --git a/config/environments/production.rb b/config/environments/production.rb
index 8f42c8c..5bee2a4 100644
--- a/config/environments/production.rb
+++ b/config/environments/production.rb
@@ -20,13 +20,13 @@ Rails.application.configure do
   # key such as config/credentials/production.key. This key is used to decrypt credentials (and other encrypted files).
   # config.require_master_key = true
 
-  # Disable serving static files from `public/`, relying on NGINX/Apache to do so instead.
-  # config.public_file_server.enabled = false
+  # Enable static file serving from the `/public` folder (turn off if using NGINX/Apache for it).
+  config.public_file_server.enabled = true
 
   # Compress CSS using a preprocessor.
   # config.assets.css_compressor = :sass
 
-  # Do not fall back to assets pipeline if a precompiled asset is missed.
+  # Do not fallback to assets pipeline if a precompiled asset is missed.
   config.assets.compile = false
 
   # Enable serving of images, stylesheets, and JavaScripts from an asset server.
@@ -51,18 +51,15 @@ Rails.application.configure do
   # Force all access to the app over SSL, use Strict-Transport-Security, and use secure cookies.
   config.force_ssl = false
 
-  # Skip http-to-https redirect for the default health check endpoint.
-  # config.ssl_options = { redirect: { exclude: ->(request) { request.path == "/up" } } }
-
   # Log to STDOUT by default
-  config.logger = ActiveSupport::Logger.new(STDOUT)
+  config.logger = ActiveSupport::Logger.new($stdout)
     .tap { |logger| logger.formatter = ::Logger::Formatter.new }
     .then { |logger| ActiveSupport::TaggedLogging.new(logger) }
 
   # Prepend all log lines with the following tags.
-  config.log_tags = [ :request_id ]
+  config.log_tags = [:request_id]
 
-  # "info" includes generic and useful information about system operation, but avoids logging too much
+  # Info include generic and useful information about system operation, but avoids logging too much
   # information to avoid inadvertent exposure of personally identifiable information (PII). If you
   # want to log everything, set the level to "debug".
   config.log_level = ENV.fetch("RAILS_LOG_LEVEL", "info")
@@ -71,7 +68,7 @@ Rails.application.configure do
   # config.cache_store = :mem_cache_store
 
   # Use a real queuing backend for Active Job (and separate queues per environment).
-  # config.active_job.queue_adapter = :resque
+  # config.active_job.queue_adapter     = :resque
   # config.active_job.queue_name_prefix = "family_budget_production"
 
   config.action_mailer.perform_caching = false
diff --git a/config/environments/test.rb b/config/environments/test.rb
index 83d1fa9..bcb1feb 100644
--- a/config/environments/test.rb
+++ b/config/environments/test.rb
@@ -18,14 +18,17 @@ Rails.application.configure do
   config.eager_load = ENV["CI"].present?
 
   # Configure public file server for tests with Cache-Control for performance.
-  config.public_file_server.headers = { "Cache-Control" => "public, max-age=#{1.hour.to_i}" }
+  config.public_file_server.enabled = true
+  config.public_file_server.headers = {
+    "Cache-Control" => "public, max-age=#{1.hour.to_i}"
+  }
 
   # Show full error reports and disable caching.
   config.consider_all_requests_local = true
   config.action_controller.perform_caching = false
   config.cache_store = :null_store
 
-  # Render exception templates for rescuable exceptions and raise for other exceptions.
+  # Raise exceptions instead of rendering exception templates.
   config.action_dispatch.show_exceptions = :rescuable
 
   # Disable request forgery protection in test environment.
@@ -41,19 +44,21 @@ Rails.application.configure do
   # ActionMailer::Base.deliveries array.
   config.action_mailer.delivery_method = :test
 
-  # Unlike controllers, the mailer instance doesn't have any context about the
-  # incoming request so you'll need to provide the :host parameter yourself.
-  config.action_mailer.default_url_options = { host: "www.example.com" }
-
   # Print deprecation notices to the stderr.
   config.active_support.deprecation = :stderr
 
+  # 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
 
-  # Raise error when a before_action's only/except options reference missing actions.
+  # Raise error when a before_action's only/except options reference missing actions
   config.action_controller.raise_on_missing_callback_actions = true
 end
diff --git a/config/initializers/filter_parameter_logging.rb b/config/initializers/filter_parameter_logging.rb
index c010b83..c2d89e2 100644
--- a/config/initializers/filter_parameter_logging.rb
+++ b/config/initializers/filter_parameter_logging.rb
@@ -4,5 +4,5 @@
 # Use this to limit dissemination of sensitive information.
 # See the ActiveSupport::ParameterFilter documentation for supported notations and behaviors.
 Rails.application.config.filter_parameters += [
-  :passw, :email, :secret, :token, :_key, :crypt, :salt, :certificate, :otp, :ssn
+  :passw, :secret, :token, :_key, :crypt, :salt, :certificate, :otp, :ssn
 ]
diff --git a/config/initializers/new_framework_defaults_8_0.rb b/config/initializers/new_framework_defaults_8_0.rb
deleted file mode 100644
index d8e7757..0000000
--- a/config/initializers/new_framework_defaults_8_0.rb
+++ /dev/null
@@ -1,10 +0,0 @@
-# Be sure to restart your server when you modify this file.
-#
-# This file eases your Rails 8.0 framework defaults upgrade.
-#
-# Uncomment each configuration one by one to switch to the new default.
-# Once your application is ready to run with all new defaults, you can remove
-# this file and set the `config.load_defaults` to `8.0`.
-#
-# Read the Guide for Upgrading Ruby on Rails for more info on each option.
-# https://guides.rubyonrails.org/upgrading_ruby_on_rails.html
diff --git a/config/puma.rb b/config/puma.rb
index f976b8a..ce4878f 100644
--- a/config/puma.rb
+++ b/config/puma.rb
@@ -1,54 +1,43 @@
-# This configuration file will be evaluated by Puma. The top-level methods that
-# are invoked here are part of Puma's configuration DSL. For more information
-# about methods provided by the DSL, see https://puma.io/puma/Puma/DSL.html.
-
-# Puma starts a configurable number of processes (workers) and each process
-# serves each request in a thread from an internal thread pool.
+# Puma can serve each request in a thread from an internal thread pool.
+# The `threads` method setting takes two numbers: a minimum and maximum.
+# Any libraries that use thread pools should be configured to match
+# 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.
 #
-# The ideal number of threads per worker depends both on how much time the
-# application spends waiting for IO operations and on how much you wish to
-# prioritize throughput over latency.
-#
-# As a rule of thumb, increasing the number of threads will increase how much
-# traffic a given process can handle (throughput), but due to CRuby's
-# Global VM Lock (GVL) it has diminishing returns and will degrade the
-# response time (latency) of the application.
-#
-# The default is set to 3 threads as it's deemed a decent compromise between
-# throughput and latency for the average Rails application.
-#
-# Any libraries that use a connection pool or another resource pool should
-# be configured to provide at least as many connections as the number of
-# threads. This includes Active Record's `pool` parameter in `database.yml`.
-threads_count = ENV.fetch("RAILS_MAX_THREADS", 3)
-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 `environment` that Puma will run in.
-rails_env = ENV.fetch("RAILS_ENV", "development")
-environment rails_env
-
-case rails_env
-when "production"
-  # If you are running more than 1 thread per process, the workers count
-  # should be equal to the number of processors (CPU cores) in production.
-  #
-  # Automatically detect the number of available processors in production.
-  require "concurrent-ruby"
-  workers_count = Integer(ENV.fetch("WEB_CONCURRENCY") { Concurrent.available_processor_count })
-  workers workers_count if workers_count > 1
-
-  preload_app!
-when "development"
-  # Specifies a very generous `worker_timeout` so that the worker
-  # isn't killed by Puma when suspended by a debugger.
-  worker_timeout 3600
-end
+# 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)
 
+# 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 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).
+#
+# workers ENV.fetch("WEB_CONCURRENCY") { 2 }
+
+# Use the `preload_app!` method when specifying a `workers` number.
+# This directive tells Puma to first boot the application and load code
+# before forking the application. This takes advantage of Copy On Write
+# process behavior so workers use less memory.
+#
+# preload_app!
+
 # Allow puma to be restarted by `bin/rails restart` command.
 plugin :tmp_restart
-
-# Only use a pidfile when requested
-pidfile ENV["PIDFILE"] if ENV["PIDFILE"]
diff --git a/public/406-unsupported-browser.html b/public/406-unsupported-browser.html
deleted file mode 100644
index 7cf1e16..0000000
--- a/public/406-unsupported-browser.html
+++ /dev/null
@@ -1,66 +0,0 @@
-<!DOCTYPE html>
-<html>
-<head>
-  <title>Your browser is not supported (406)</title>
-  <meta name="viewport" content="width=device-width,initial-scale=1">
-  <style>
-  .rails-default-error-page {
-    background-color: #EFEFEF;
-    color: #2E2F30;
-    text-align: center;
-    font-family: arial, sans-serif;
-    margin: 0;
-  }
-
-  .rails-default-error-page div.dialog {
-    width: 95%;
-    max-width: 33em;
-    margin: 4em auto 0;
-  }
-
-  .rails-default-error-page div.dialog > div {
-    border: 1px solid #CCC;
-    border-right-color: #999;
-    border-left-color: #999;
-    border-bottom-color: #BBB;
-    border-top: #B00100 solid 4px;
-    border-top-left-radius: 9px;
-    border-top-right-radius: 9px;
-    background-color: white;
-    padding: 7px 12% 0;
-    box-shadow: 0 3px 8px rgba(50, 50, 50, 0.17);
-  }
-
-  .rails-default-error-page h1 {
-    font-size: 100%;
-    color: #730E15;
-    line-height: 1.5em;
-  }
-
-  .rails-default-error-page div.dialog > p {
-    margin: 0 0 1em;
-    padding: 1em;
-    background-color: #F7F7F7;
-    border: 1px solid #CCC;
-    border-right-color: #999;
-    border-left-color: #999;
-    border-bottom-color: #999;
-    border-bottom-left-radius: 4px;
-    border-bottom-right-radius: 4px;
-    border-top-color: #DADADA;
-    color: #666;
-    box-shadow: 0 3px 8px rgba(50, 50, 50, 0.17);
-  }
-  </style>
-</head>
-
-<body class="rails-default-error-page">
-  <!-- This file lives in public/406-unsupported-browser.html -->
-  <div class="dialog">
-    <div>
-      <h1>Your browser is not supported.</h1>
-      <p>Please upgrade your browser to continue.</p>
-    </div>
-  </div>
-</body>
-</html>
diff --git a/public/icon.png b/public/icon.png
deleted file mode 100644
index f3b5abc..0000000
Binary files a/public/icon.png and /dev/null differ
diff --git a/public/icon.svg b/public/icon.svg
deleted file mode 100644
index 78307cc..0000000
--- a/public/icon.svg
+++ /dev/null
@@ -1,3 +0,0 @@
-<svg width="100" height="100" xmlns="http://www.w3.org/2000/svg">
-  <rect width="100%" height="100%" fill="red"/>
-</svg>
diff --git a/test/application_system_test_case.rb b/test/application_system_test_case.rb
index e2db3a5..2ac80b6 100644
--- a/test/application_system_test_case.rb
+++ b/test/application_system_test_case.rb
@@ -3,5 +3,5 @@ require "test_helper"
 class ApplicationSystemTestCase < ActionDispatch::SystemTestCase
   driven_by :selenium,
     using: ENV["VISIBLE_SYSTEM_TESTS"].present? ? :chrome : :headless_chrome,
-    screen_size: [ 1400, 1400 ]
+    screen_size: [1400, 1400]
 end