diff --git a/app/assets/stylesheets/simple_discussion.scss b/app/assets/stylesheets/simple_discussion.scss
index 606f3ff..c63f794 100644
--- a/app/assets/stylesheets/simple_discussion.scss
+++ b/app/assets/stylesheets/simple_discussion.scss
@@ -4,11 +4,8 @@
 @import "simple_discussion_variables";
 
 .community-heading {
-  margin-top: 10px;
-  width: 95%;
   color: #212529;
-  margin-left: 4rem;
-  margin-bottom: 24px;
+  padding-block: 12px;
 }
 
 // Primary button for Forum
@@ -236,32 +233,30 @@
   border: 1px solid #80808029;
   border-radius: 3px;
   padding: 20px;
+
+  &:hover {
+    text-decoration: none;
+    background-color: $forum-thread-filter-btn-link-hover-background;
+
+  }
 }
 
 // Formatting forum post
 .simple_discussion .forum-post {
-  padding: 10px;
   border-radius: $post-body-border-radius;
   margin-bottom: 10px;
   border: 1px solid #80808029;
 
-  &:hover {
-    background-color: #f4f3f3;
-  }
-
   .card-body {
-    padding: 10px;
-
-    p {
-      font-size: 14px;
-    }
+    margin-top: 16px;
   }
 }
 
 // Formatting the listtile for user details
 .simple_discussion .forum-post .forum-post-header,
 .form-user-details {
-  padding: 0 10px;
+  padding: 10px;
+  background-color: $forum-thread-filter-btn-link-hover-background;
 
   p {
     padding: 0;
@@ -295,10 +290,9 @@
 
 .sidebar-sticky {
   position: sticky;
-  top: 120px;
+  top: 60px;
 }
 
 .thread-page-container {
-  border: 1px solid #80808029;
-  padding: 15px;
+  padding: 24px;
 }
diff --git a/app/controllers/simple_discussion/forum_posts_controller.rb b/app/controllers/simple_discussion/forum_posts_controller.rb
index 4303e97..23e59e9 100644
--- a/app/controllers/simple_discussion/forum_posts_controller.rb
+++ b/app/controllers/simple_discussion/forum_posts_controller.rb
@@ -13,7 +13,7 @@ def create
       SimpleDiscussion::ForumPostNotificationJob.perform_later(@forum_post)
       redirect_to simple_discussion.forum_thread_path(@forum_thread, anchor: "forum_post_#{@forum_post.id}")
     else
-      render template: "simple_discussion/forum_threads/show"
+      render template: "simple_discussion/forum_threads/show", status: :unprocessable_entity
     end
   end
 
@@ -24,7 +24,7 @@ def update
     if @forum_post.update(forum_post_params)
       redirect_to simple_discussion.forum_thread_path(@forum_thread)
     else
-      render action: :edit
+      render action: :edit, status: :unprocessable_entity
     end
   end
 
diff --git a/app/controllers/simple_discussion/forum_threads_controller.rb b/app/controllers/simple_discussion/forum_threads_controller.rb
index d7e5bf0..6edc92d 100644
--- a/app/controllers/simple_discussion/forum_threads_controller.rb
+++ b/app/controllers/simple_discussion/forum_threads_controller.rb
@@ -45,7 +45,7 @@ def create
       SimpleDiscussion::ForumThreadNotificationJob.perform_later(@forum_thread)
       redirect_to simple_discussion.forum_thread_path(@forum_thread)
     else
-      render action: :new
+      render action: :new, status: :unprocessable_entity
     end
   end
 
@@ -56,7 +56,7 @@ def update
     if @forum_thread.update(forum_thread_params)
       redirect_to simple_discussion.forum_thread_path(@forum_thread), notice: I18n.t("your_changes_were_saved")
     else
-      render action: :edit
+      render action: :edit, status: :unprocessable_entity
     end
   end
 
diff --git a/app/models/forum_post.rb b/app/models/forum_post.rb
index 267d5e5..dfd9202 100644
--- a/app/models/forum_post.rb
+++ b/app/models/forum_post.rb
@@ -1,13 +1,29 @@
+require "language_filter"
 class ForumPost < ApplicationRecord
   belongs_to :forum_thread, counter_cache: true, touch: true
   belongs_to :user
 
   validates :user_id, :body, presence: true
+  validate :clean_body, if: -> { SimpleDiscussion.profanity_filter }
 
   scope :sorted, -> { order(:created_at) }
 
   after_update :solve_forum_thread, if: :solved?
 
+  def clean_body
+    filters = [:profanity, :sex, :violence, :hate]
+    detected_words = Set.new
+
+    filters.each do |matchlist|
+      filter = LanguageFilter::Filter.new(matchlist: matchlist)
+      detected_words.merge(filter.matched(body)) if filter.match?(body)
+    end
+
+    if detected_words.any?
+      errors.add(:body, I18n.t(".inappropriate_language_error_message", words: detected_words.to_a.join(", ")))
+    end
+  end
+
   def solve_forum_thread
     forum_thread.update(solved: true)
   end
diff --git a/app/models/forum_thread.rb b/app/models/forum_thread.rb
index ec0d044..18ad3c7 100644
--- a/app/models/forum_thread.rb
+++ b/app/models/forum_thread.rb
@@ -1,3 +1,4 @@
+require "language_filter"
 class ForumThread < ApplicationRecord
   extend FriendlyId
   friendly_id :title, use: :slugged
@@ -16,12 +17,29 @@ class ForumThread < ApplicationRecord
   validates :user_id, :title, presence: true
   validates_associated :forum_posts
 
+  validate :clean_title, if: -> { SimpleDiscussion.profanity_filter }
+
   scope :pinned_first, -> { order(pinned: :desc) }
   scope :solved, -> { where(solved: true) }
   scope :sorted, -> { order(updated_at: :desc) }
   scope :unpinned, -> { where.not(pinned: true) }
   scope :unsolved, -> { where.not(solved: true) }
 
+  def clean_title
+    filters = [:profanity, :sex, :violence, :hate]
+
+    detected_words = Set.new
+
+    filters.each do |matchlist|
+      filter = LanguageFilter::Filter.new(matchlist: matchlist)
+      detected_words.merge(filter.matched(title)) if filter.match?(title)
+    end
+
+    if detected_words.any?
+      errors.add(:title, I18n.t(".inappropriate_language_error_message", words: detected_words.to_a.join(", ")))
+    end
+  end
+
   def subscribed_users
     (users + optin_subscribers).uniq - optout_subscribers
   end
diff --git a/app/views/layouts/simple_discussion.html.erb b/app/views/layouts/simple_discussion.html.erb
index ed9dedb..80f1e73 100644
--- a/app/views/layouts/simple_discussion.html.erb
+++ b/app/views/layouts/simple_discussion.html.erb
@@ -1,8 +1,8 @@
 <div>
-  <h1 class="community-heading"><%= t('community') %></h1>
   <div class="row simple_discussion mt-2">
-    <div class="col-md-2 mb-3">
+    <div class="col-lg-2 mb-3 border-right">
       <div class="col sidebar-sticky">
+        <h2 class="community-heading"><%= t('community') %></h2>
         <%= link_to t('ask_a_question'), simple_discussion.new_forum_thread_path, class: "btn forum-primary-btn btn-block mb-4" %>
 
         <div class="forum-thread-filters">
@@ -60,7 +60,7 @@
 
     </div>
 
-    <div class="col-md-10 mb-3 thread-page-container">
+    <div class="col-lg-10 mb-3 thread-page-container">
       <%= yield %>
     </div>
   </div>
diff --git a/app/views/simple_discussion/forum_posts/_form.html.erb b/app/views/simple_discussion/forum_posts/_form.html.erb
index eb99b33..1a99524 100644
--- a/app/views/simple_discussion/forum_posts/_form.html.erb
+++ b/app/views/simple_discussion/forum_posts/_form.html.erb
@@ -4,14 +4,10 @@
   html: { data: { behavior: "comment-form" } } do |f| %>
 
   <% if @forum_post.errors.any? %>
-    <div id="error_explanation">
-      <h2><%= pluralize(@forum_post.errors.count, "error") %> <%= t("forum_thread_error_explanation") %></h2>
-
-      <ul>
-        <% @forum_post.errors.full_messages.each do |message| %>
-          <li><%= message %></li>
-        <% end %>
-      </ul>
+    <div class="alert alert-danger" role="alert">
+      <% @forum_post.errors.full_messages.each do |message| %>
+        <li><%= message %></li>
+      <% end %>
     </div>
   <% end %>
 
diff --git a/app/views/simple_discussion/forum_posts/_forum_post.html.erb b/app/views/simple_discussion/forum_posts/_forum_post.html.erb
index d190839..88e4809 100644
--- a/app/views/simple_discussion/forum_posts/_forum_post.html.erb
+++ b/app/views/simple_discussion/forum_posts/_forum_post.html.erb
@@ -27,7 +27,7 @@
     </div>
   </div>
 
-  <div class="card-body pb-0">
+  <div class="card-body p-3">
     <%= formatted_content forum_post.body %>
   </div>
 
diff --git a/app/views/simple_discussion/forum_threads/_form.html.erb b/app/views/simple_discussion/forum_threads/_form.html.erb
index 2582d56..64f2d18 100644
--- a/app/views/simple_discussion/forum_threads/_form.html.erb
+++ b/app/views/simple_discussion/forum_threads/_form.html.erb
@@ -3,14 +3,10 @@
    html: { data: {behavior: "comment-form"} } do |f| %>
 
   <% if @forum_thread.errors.any? %>
-    <div id="error_explanation">
-      <h2><%= pluralize(@forum_thread.errors.count, "error") %> <%= t("forum_thread_error_explanation") %></h2>
-
-      <ul>
+    <div class="alert alert-danger" role="alert">
       <% @forum_thread.errors.full_messages.each do |message| %>
         <li><%= message %></li>
       <% end %>
-      </ul>
     </div>
   <% end %>
 
diff --git a/app/views/simple_discussion/forum_threads/_forum_thread.html.erb b/app/views/simple_discussion/forum_threads/_forum_thread.html.erb
index bbd64e9..bc62b3b 100644
--- a/app/views/simple_discussion/forum_threads/_forum_thread.html.erb
+++ b/app/views/simple_discussion/forum_threads/_forum_thread.html.erb
@@ -1,13 +1,13 @@
 <%= cache forum_thread do %>
-  <div class="forum-thread d-flex flex-row mb-4">
+  <%= link_to simple_discussion.forum_thread_path(forum_thread), class: "forum-thread d-flex flex-row mb-4" do %>
     <div class="mr-3 d-none d-md-block">
       <img class="avatar" src="<%= gravatar_url_for(forum_thread.user.email,size: 30) %>" alt="user avatar">
     </div>
     <div class="thread-container">
       <div class="thread-header d-flex flex-row justify-content-between mb-1">
-        <%= link_to simple_discussion.forum_thread_path(forum_thread), class: "thread-header-title" do %>
+        <div class="thread-header-title">
           <%= icon "fas", "thumb-tack", class: "text-muted" if forum_thread.pinned? %> <%= forum_thread.title %>
-        <% end %>
+        </div>
         <div class="thread-header-icons d-flex flex-row">
           <div class="chat-icon mr-3">
             <%= icon "fas", "comments" %>
@@ -39,5 +39,5 @@
         </div>
       </div>
     </div>
-  </div>
+  <% end %>
 <% end %>
diff --git a/config/locales/en.yml b/config/locales/en.yml
index aeeedeb..de519dd 100644
--- a/config/locales/en.yml
+++ b/config/locales/en.yml
@@ -55,4 +55,5 @@ en:
   open: "Open"
   create_account: "Create account"
   login: "Log in"
-  commented: "commented:"
\ No newline at end of file
+  commented: "commented:"
+  inappropriate_language_error_message: "contains inappropriate language: %{words}"
diff --git a/config/locales/es.yml b/config/locales/es.yml
index f4a98e9..851831c 100644
--- a/config/locales/es.yml
+++ b/config/locales/es.yml
@@ -39,3 +39,20 @@ es:
   ask_your_question: Haz tu pregunta
   update_comment: Actualiza tu comentario
   your_changes_were_saved: Tus cambios fueron guardados
+  search_not_found: No se encontraron resultados para tu búsqueda
+  check_out: Echa un vistazo
+  latest_questions: las preguntas más recientes
+  instead: ¿en su lugar?
+  forum_thread_error_explanation: "prohibió que este hilo del foro se guardara:"
+  ago: "hace"
+  on: "el"
+  mark_as_solved: "Marcar como resuelto"
+  undo: "Deshacer"
+  back_to_thread: "Volver al hilo"
+  created_by: "Creado por"
+  solved: "Resuelto"
+  open: "Abrir"
+  create_account: "Crear cuenta"
+  login: "Iniciar sesión"
+  commented: "comentó:"
+  inappropriate_language_error_message: "contiene lenguaje inapropiado: %{words}"
diff --git a/config/locales/fr.yml b/config/locales/fr.yml
index e2021ca..c137054 100644
--- a/config/locales/fr.yml
+++ b/config/locales/fr.yml
@@ -45,3 +45,16 @@ fr:
   check_out: Voir
   latest_questions: les dernières questions
   instead: à la place
+  forum_thread_error_explanation: "a interdit l'enregistrement de ce fil de discussion:"
+  ago: "il y a"
+  on: "le"
+  mark_as_solved: "Marquer comme résolu"
+  undo: "Annuler"
+  back_to_thread: "Retour au fil de discussion"
+  created_by: "Créé par"
+  solved: "Résolu"
+  open: "Ouvrir"
+  create_account: "Créer un compte"
+  login: "Se connecter"
+  commented: "a commenté:"
+  inappropriate_language_error_message: "contient un langage inapproprié : %{words}"
diff --git a/gemfiles/rails_6_1.gemfile.lock b/gemfiles/rails_6_1.gemfile.lock
index a2726ce..cffead0 100644
--- a/gemfiles/rails_6_1.gemfile.lock
+++ b/gemfiles/rails_6_1.gemfile.lock
@@ -4,66 +4,67 @@ PATH
     simple_discussion (1.3.0)
       font-awesome-sass (>= 5.13.0)
       friendly_id (>= 5.2.0)
+      language_filter (>= 0.3.01)
       rails (>= 4.2)
       will_paginate (>= 3.1.0)
 
 GEM
   remote: https://rubygems.org/
   specs:
-    actioncable (6.1.7.7)
-      actionpack (= 6.1.7.7)
-      activesupport (= 6.1.7.7)
+    actioncable (6.1.7.8)
+      actionpack (= 6.1.7.8)
+      activesupport (= 6.1.7.8)
       nio4r (~> 2.0)
       websocket-driver (>= 0.6.1)
-    actionmailbox (6.1.7.7)
-      actionpack (= 6.1.7.7)
-      activejob (= 6.1.7.7)
-      activerecord (= 6.1.7.7)
-      activestorage (= 6.1.7.7)
-      activesupport (= 6.1.7.7)
+    actionmailbox (6.1.7.8)
+      actionpack (= 6.1.7.8)
+      activejob (= 6.1.7.8)
+      activerecord (= 6.1.7.8)
+      activestorage (= 6.1.7.8)
+      activesupport (= 6.1.7.8)
       mail (>= 2.7.1)
-    actionmailer (6.1.7.7)
-      actionpack (= 6.1.7.7)
-      actionview (= 6.1.7.7)
-      activejob (= 6.1.7.7)
-      activesupport (= 6.1.7.7)
+    actionmailer (6.1.7.8)
+      actionpack (= 6.1.7.8)
+      actionview (= 6.1.7.8)
+      activejob (= 6.1.7.8)
+      activesupport (= 6.1.7.8)
       mail (~> 2.5, >= 2.5.4)
       rails-dom-testing (~> 2.0)
-    actionpack (6.1.7.7)
-      actionview (= 6.1.7.7)
-      activesupport (= 6.1.7.7)
+    actionpack (6.1.7.8)
+      actionview (= 6.1.7.8)
+      activesupport (= 6.1.7.8)
       rack (~> 2.0, >= 2.0.9)
       rack-test (>= 0.6.3)
       rails-dom-testing (~> 2.0)
       rails-html-sanitizer (~> 1.0, >= 1.2.0)
-    actiontext (6.1.7.7)
-      actionpack (= 6.1.7.7)
-      activerecord (= 6.1.7.7)
-      activestorage (= 6.1.7.7)
-      activesupport (= 6.1.7.7)
+    actiontext (6.1.7.8)
+      actionpack (= 6.1.7.8)
+      activerecord (= 6.1.7.8)
+      activestorage (= 6.1.7.8)
+      activesupport (= 6.1.7.8)
       nokogiri (>= 1.8.5)
-    actionview (6.1.7.7)
-      activesupport (= 6.1.7.7)
+    actionview (6.1.7.8)
+      activesupport (= 6.1.7.8)
       builder (~> 3.1)
       erubi (~> 1.4)
       rails-dom-testing (~> 2.0)
       rails-html-sanitizer (~> 1.1, >= 1.2.0)
-    activejob (6.1.7.7)
-      activesupport (= 6.1.7.7)
+    activejob (6.1.7.8)
+      activesupport (= 6.1.7.8)
       globalid (>= 0.3.6)
-    activemodel (6.1.7.7)
-      activesupport (= 6.1.7.7)
-    activerecord (6.1.7.7)
-      activemodel (= 6.1.7.7)
-      activesupport (= 6.1.7.7)
-    activestorage (6.1.7.7)
-      actionpack (= 6.1.7.7)
-      activejob (= 6.1.7.7)
-      activerecord (= 6.1.7.7)
-      activesupport (= 6.1.7.7)
+    activemodel (6.1.7.8)
+      activesupport (= 6.1.7.8)
+    activerecord (6.1.7.8)
+      activemodel (= 6.1.7.8)
+      activesupport (= 6.1.7.8)
+    activestorage (6.1.7.8)
+      actionpack (= 6.1.7.8)
+      activejob (= 6.1.7.8)
+      activerecord (= 6.1.7.8)
+      activesupport (= 6.1.7.8)
       marcel (~> 1.0)
       mini_mime (>= 1.1.0)
-    activesupport (6.1.7.7)
+    activesupport (6.1.7.8)
       concurrent-ruby (~> 1.0, >= 1.0.2)
       i18n (>= 1.6, < 2)
       minitest (>= 5.1)
@@ -75,8 +76,8 @@ GEM
       thor (>= 0.14.0)
     ast (2.4.2)
     bcrypt (3.1.20)
-    builder (3.2.4)
-    concurrent-ruby (1.3.1)
+    builder (3.3.0)
+    concurrent-ruby (1.3.3)
     crass (1.0.6)
     date (3.3.4)
     devise (4.9.4)
@@ -85,7 +86,7 @@ GEM
       railties (>= 4.1.0)
       responders
       warden (~> 1.2.3)
-    erubi (1.12.0)
+    erubi (1.13.0)
     ffi (1.17.0-x86_64-linux-gnu)
     font-awesome-sass (5.13.1)
       sassc (>= 1.11)
@@ -96,6 +97,7 @@ GEM
     i18n (1.14.5)
       concurrent-ruby (~> 1.0)
     json (2.7.2)
+    language_filter (0.3.01)
     language_server-protocol (3.17.0.3)
     lint_roller (1.1.0)
     loofah (2.22.0)
@@ -109,8 +111,8 @@ GEM
     marcel (1.0.4)
     method_source (1.1.0)
     mini_mime (1.1.5)
-    minitest (5.23.1)
-    net-imap (0.4.12)
+    minitest (5.24.1)
+    net-imap (0.4.14)
       date
       net-protocol
     net-pop (0.1.2)
@@ -120,11 +122,11 @@ GEM
     net-smtp (0.5.0)
       net-protocol
     nio4r (2.7.3)
-    nokogiri (1.16.5-x86_64-linux)
+    nokogiri (1.16.6-x86_64-linux)
       racc (~> 1.4)
     orm_adapter (0.5.0)
-    parallel (1.24.0)
-    parser (3.3.2.0)
+    parallel (1.25.1)
+    parser (3.3.4.0)
       ast (~> 2.4.1)
       racc
     puma (6.4.2)
@@ -133,20 +135,20 @@ GEM
     rack (2.2.9)
     rack-test (2.1.0)
       rack (>= 1.3)
-    rails (6.1.7.7)
-      actioncable (= 6.1.7.7)
-      actionmailbox (= 6.1.7.7)
-      actionmailer (= 6.1.7.7)
-      actionpack (= 6.1.7.7)
-      actiontext (= 6.1.7.7)
-      actionview (= 6.1.7.7)
-      activejob (= 6.1.7.7)
-      activemodel (= 6.1.7.7)
-      activerecord (= 6.1.7.7)
-      activestorage (= 6.1.7.7)
-      activesupport (= 6.1.7.7)
+    rails (6.1.7.8)
+      actioncable (= 6.1.7.8)
+      actionmailbox (= 6.1.7.8)
+      actionmailer (= 6.1.7.8)
+      actionpack (= 6.1.7.8)
+      actiontext (= 6.1.7.8)
+      actionview (= 6.1.7.8)
+      activejob (= 6.1.7.8)
+      activemodel (= 6.1.7.8)
+      activerecord (= 6.1.7.8)
+      activestorage (= 6.1.7.8)
+      activesupport (= 6.1.7.8)
       bundler (>= 1.15.0)
-      railties (= 6.1.7.7)
+      railties (= 6.1.7.8)
       sprockets-rails (>= 2.0.0)
     rails-dom-testing (2.2.0)
       activesupport (>= 5.0.0)
@@ -155,9 +157,9 @@ GEM
     rails-html-sanitizer (1.6.0)
       loofah (~> 2.21)
       nokogiri (~> 1.14)
-    railties (6.1.7.7)
-      actionpack (= 6.1.7.7)
-      activesupport (= 6.1.7.7)
+    railties (6.1.7.8)
+      actionpack (= 6.1.7.8)
+      activesupport (= 6.1.7.8)
       method_source
       rake (>= 12.2)
       thor (~> 1.0)
@@ -167,9 +169,9 @@ GEM
     responders (3.1.1)
       actionpack (>= 5.2)
       railties (>= 5.2)
-    rexml (3.2.8)
-      strscan (>= 3.0.9)
-    rubocop (1.63.5)
+    rexml (3.3.2)
+      strscan
+    rubocop (1.64.1)
       json (~> 2.3)
       language_server-protocol (>= 3.17.0)
       parallel (~> 1.10)
@@ -182,7 +184,7 @@ GEM
       unicode-display_width (>= 2.4.0, < 3.0)
     rubocop-ast (1.31.3)
       parser (>= 3.3.1.0)
-    rubocop-performance (1.21.0)
+    rubocop-performance (1.21.1)
       rubocop (>= 1.48.1, < 2.0)
       rubocop-ast (>= 1.31.1, < 2.0)
     ruby-progressbar (1.13.0)
@@ -191,15 +193,15 @@ GEM
     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-rails (3.5.1)
+      actionpack (>= 6.1)
+      activesupport (>= 6.1)
       sprockets (>= 3.0.0)
     sqlite3 (1.7.3-x86_64-linux)
-    standard (1.36.0)
+    standard (1.39.2)
       language_server-protocol (~> 3.17.0.2)
       lint_roller (~> 1.0)
-      rubocop (~> 1.63.0)
+      rubocop (~> 1.64.0)
       standard-custom (~> 1.0.0)
       standard-performance (~> 1.4)
     standard-custom (1.0.2)
@@ -221,8 +223,8 @@ GEM
     websocket-driver (0.7.6)
       websocket-extensions (>= 0.1.0)
     websocket-extensions (0.1.5)
-    will_paginate (4.0.0)
-    zeitwerk (2.6.15)
+    will_paginate (4.0.1)
+    zeitwerk (2.6.16)
 
 PLATFORMS
   x86_64-linux-gnu
diff --git a/gemfiles/rails_7.gemfile.lock b/gemfiles/rails_7.gemfile.lock
index dd9e779..2ded953 100644
--- a/gemfiles/rails_7.gemfile.lock
+++ b/gemfiles/rails_7.gemfile.lock
@@ -4,73 +4,74 @@ PATH
     simple_discussion (1.3.0)
       font-awesome-sass (>= 5.13.0)
       friendly_id (>= 5.2.0)
+      language_filter (>= 0.3.01)
       rails (>= 4.2)
       will_paginate (>= 3.1.0)
 
 GEM
   remote: https://rubygems.org/
   specs:
-    actioncable (7.0.8.3)
-      actionpack (= 7.0.8.3)
-      activesupport (= 7.0.8.3)
+    actioncable (7.0.8.4)
+      actionpack (= 7.0.8.4)
+      activesupport (= 7.0.8.4)
       nio4r (~> 2.0)
       websocket-driver (>= 0.6.1)
-    actionmailbox (7.0.8.3)
-      actionpack (= 7.0.8.3)
-      activejob (= 7.0.8.3)
-      activerecord (= 7.0.8.3)
-      activestorage (= 7.0.8.3)
-      activesupport (= 7.0.8.3)
+    actionmailbox (7.0.8.4)
+      actionpack (= 7.0.8.4)
+      activejob (= 7.0.8.4)
+      activerecord (= 7.0.8.4)
+      activestorage (= 7.0.8.4)
+      activesupport (= 7.0.8.4)
       mail (>= 2.7.1)
       net-imap
       net-pop
       net-smtp
-    actionmailer (7.0.8.3)
-      actionpack (= 7.0.8.3)
-      actionview (= 7.0.8.3)
-      activejob (= 7.0.8.3)
-      activesupport (= 7.0.8.3)
+    actionmailer (7.0.8.4)
+      actionpack (= 7.0.8.4)
+      actionview (= 7.0.8.4)
+      activejob (= 7.0.8.4)
+      activesupport (= 7.0.8.4)
       mail (~> 2.5, >= 2.5.4)
       net-imap
       net-pop
       net-smtp
       rails-dom-testing (~> 2.0)
-    actionpack (7.0.8.3)
-      actionview (= 7.0.8.3)
-      activesupport (= 7.0.8.3)
+    actionpack (7.0.8.4)
+      actionview (= 7.0.8.4)
+      activesupport (= 7.0.8.4)
       rack (~> 2.0, >= 2.2.4)
       rack-test (>= 0.6.3)
       rails-dom-testing (~> 2.0)
       rails-html-sanitizer (~> 1.0, >= 1.2.0)
-    actiontext (7.0.8.3)
-      actionpack (= 7.0.8.3)
-      activerecord (= 7.0.8.3)
-      activestorage (= 7.0.8.3)
-      activesupport (= 7.0.8.3)
+    actiontext (7.0.8.4)
+      actionpack (= 7.0.8.4)
+      activerecord (= 7.0.8.4)
+      activestorage (= 7.0.8.4)
+      activesupport (= 7.0.8.4)
       globalid (>= 0.6.0)
       nokogiri (>= 1.8.5)
-    actionview (7.0.8.3)
-      activesupport (= 7.0.8.3)
+    actionview (7.0.8.4)
+      activesupport (= 7.0.8.4)
       builder (~> 3.1)
       erubi (~> 1.4)
       rails-dom-testing (~> 2.0)
       rails-html-sanitizer (~> 1.1, >= 1.2.0)
-    activejob (7.0.8.3)
-      activesupport (= 7.0.8.3)
+    activejob (7.0.8.4)
+      activesupport (= 7.0.8.4)
       globalid (>= 0.3.6)
-    activemodel (7.0.8.3)
-      activesupport (= 7.0.8.3)
-    activerecord (7.0.8.3)
-      activemodel (= 7.0.8.3)
-      activesupport (= 7.0.8.3)
-    activestorage (7.0.8.3)
-      actionpack (= 7.0.8.3)
-      activejob (= 7.0.8.3)
-      activerecord (= 7.0.8.3)
-      activesupport (= 7.0.8.3)
+    activemodel (7.0.8.4)
+      activesupport (= 7.0.8.4)
+    activerecord (7.0.8.4)
+      activemodel (= 7.0.8.4)
+      activesupport (= 7.0.8.4)
+    activestorage (7.0.8.4)
+      actionpack (= 7.0.8.4)
+      activejob (= 7.0.8.4)
+      activerecord (= 7.0.8.4)
+      activesupport (= 7.0.8.4)
       marcel (~> 1.0)
       mini_mime (>= 1.1.0)
-    activesupport (7.0.8.3)
+    activesupport (7.0.8.4)
       concurrent-ruby (~> 1.0, >= 1.0.2)
       i18n (>= 1.6, < 2)
       minitest (>= 5.1)
@@ -81,8 +82,8 @@ GEM
       thor (>= 0.14.0)
     ast (2.4.2)
     bcrypt (3.1.20)
-    builder (3.2.4)
-    concurrent-ruby (1.3.1)
+    builder (3.3.0)
+    concurrent-ruby (1.3.3)
     crass (1.0.6)
     date (3.3.4)
     devise (4.9.4)
@@ -91,7 +92,7 @@ GEM
       railties (>= 4.1.0)
       responders
       warden (~> 1.2.3)
-    erubi (1.12.0)
+    erubi (1.13.0)
     ffi (1.17.0-x86_64-linux-gnu)
     font-awesome-sass (5.13.1)
       sassc (>= 1.11)
@@ -102,6 +103,7 @@ GEM
     i18n (1.14.5)
       concurrent-ruby (~> 1.0)
     json (2.7.2)
+    language_filter (0.3.01)
     language_server-protocol (3.17.0.3)
     lint_roller (1.1.0)
     loofah (2.22.0)
@@ -115,8 +117,8 @@ GEM
     marcel (1.0.4)
     method_source (1.1.0)
     mini_mime (1.1.5)
-    minitest (5.23.1)
-    net-imap (0.4.12)
+    minitest (5.24.1)
+    net-imap (0.4.14)
       date
       net-protocol
     net-pop (0.1.2)
@@ -126,11 +128,11 @@ GEM
     net-smtp (0.5.0)
       net-protocol
     nio4r (2.7.3)
-    nokogiri (1.16.5-x86_64-linux)
+    nokogiri (1.16.6-x86_64-linux)
       racc (~> 1.4)
     orm_adapter (0.5.0)
-    parallel (1.24.0)
-    parser (3.3.2.0)
+    parallel (1.25.1)
+    parser (3.3.4.0)
       ast (~> 2.4.1)
       racc
     puma (6.4.2)
@@ -139,20 +141,20 @@ GEM
     rack (2.2.9)
     rack-test (2.1.0)
       rack (>= 1.3)
-    rails (7.0.8.3)
-      actioncable (= 7.0.8.3)
-      actionmailbox (= 7.0.8.3)
-      actionmailer (= 7.0.8.3)
-      actionpack (= 7.0.8.3)
-      actiontext (= 7.0.8.3)
-      actionview (= 7.0.8.3)
-      activejob (= 7.0.8.3)
-      activemodel (= 7.0.8.3)
-      activerecord (= 7.0.8.3)
-      activestorage (= 7.0.8.3)
-      activesupport (= 7.0.8.3)
+    rails (7.0.8.4)
+      actioncable (= 7.0.8.4)
+      actionmailbox (= 7.0.8.4)
+      actionmailer (= 7.0.8.4)
+      actionpack (= 7.0.8.4)
+      actiontext (= 7.0.8.4)
+      actionview (= 7.0.8.4)
+      activejob (= 7.0.8.4)
+      activemodel (= 7.0.8.4)
+      activerecord (= 7.0.8.4)
+      activestorage (= 7.0.8.4)
+      activesupport (= 7.0.8.4)
       bundler (>= 1.15.0)
-      railties (= 7.0.8.3)
+      railties (= 7.0.8.4)
     rails-dom-testing (2.2.0)
       activesupport (>= 5.0.0)
       minitest
@@ -160,9 +162,9 @@ GEM
     rails-html-sanitizer (1.6.0)
       loofah (~> 2.21)
       nokogiri (~> 1.14)
-    railties (7.0.8.3)
-      actionpack (= 7.0.8.3)
-      activesupport (= 7.0.8.3)
+    railties (7.0.8.4)
+      actionpack (= 7.0.8.4)
+      activesupport (= 7.0.8.4)
       method_source
       rake (>= 12.2)
       thor (~> 1.0)
@@ -173,9 +175,9 @@ GEM
     responders (3.1.1)
       actionpack (>= 5.2)
       railties (>= 5.2)
-    rexml (3.2.8)
-      strscan (>= 3.0.9)
-    rubocop (1.63.5)
+    rexml (3.3.2)
+      strscan
+    rubocop (1.64.1)
       json (~> 2.3)
       language_server-protocol (>= 3.17.0)
       parallel (~> 1.10)
@@ -188,7 +190,7 @@ GEM
       unicode-display_width (>= 2.4.0, < 3.0)
     rubocop-ast (1.31.3)
       parser (>= 3.3.1.0)
-    rubocop-performance (1.21.0)
+    rubocop-performance (1.21.1)
       rubocop (>= 1.48.1, < 2.0)
       rubocop-ast (>= 1.31.1, < 2.0)
     ruby-progressbar (1.13.0)
@@ -197,15 +199,15 @@ GEM
     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-rails (3.5.1)
+      actionpack (>= 6.1)
+      activesupport (>= 6.1)
       sprockets (>= 3.0.0)
     sqlite3 (1.7.3-x86_64-linux)
-    standard (1.36.0)
+    standard (1.39.2)
       language_server-protocol (~> 3.17.0.2)
       lint_roller (~> 1.0)
-      rubocop (~> 1.63.0)
+      rubocop (~> 1.64.0)
       standard-custom (~> 1.0.0)
       standard-performance (~> 1.4)
     standard-custom (1.0.2)
@@ -227,8 +229,8 @@ GEM
     websocket-driver (0.7.6)
       websocket-extensions (>= 0.1.0)
     websocket-extensions (0.1.5)
-    will_paginate (4.0.0)
-    zeitwerk (2.6.15)
+    will_paginate (4.0.1)
+    zeitwerk (2.6.16)
 
 PLATFORMS
   x86_64-linux-gnu
diff --git a/gemfiles/rails_7_1.gemfile.lock b/gemfiles/rails_7_1.gemfile.lock
index 7fad461..d2ea195 100644
--- a/gemfiles/rails_7_1.gemfile.lock
+++ b/gemfiles/rails_7_1.gemfile.lock
@@ -4,41 +4,42 @@ PATH
     simple_discussion (1.3.0)
       font-awesome-sass (>= 5.13.0)
       friendly_id (>= 5.2.0)
+      language_filter (>= 0.3.01)
       rails (>= 4.2)
       will_paginate (>= 3.1.0)
 
 GEM
   remote: https://rubygems.org/
   specs:
-    actioncable (7.1.3.3)
-      actionpack (= 7.1.3.3)
-      activesupport (= 7.1.3.3)
+    actioncable (7.1.3.4)
+      actionpack (= 7.1.3.4)
+      activesupport (= 7.1.3.4)
       nio4r (~> 2.0)
       websocket-driver (>= 0.6.1)
       zeitwerk (~> 2.6)
-    actionmailbox (7.1.3.3)
-      actionpack (= 7.1.3.3)
-      activejob (= 7.1.3.3)
-      activerecord (= 7.1.3.3)
-      activestorage (= 7.1.3.3)
-      activesupport (= 7.1.3.3)
+    actionmailbox (7.1.3.4)
+      actionpack (= 7.1.3.4)
+      activejob (= 7.1.3.4)
+      activerecord (= 7.1.3.4)
+      activestorage (= 7.1.3.4)
+      activesupport (= 7.1.3.4)
       mail (>= 2.7.1)
       net-imap
       net-pop
       net-smtp
-    actionmailer (7.1.3.3)
-      actionpack (= 7.1.3.3)
-      actionview (= 7.1.3.3)
-      activejob (= 7.1.3.3)
-      activesupport (= 7.1.3.3)
+    actionmailer (7.1.3.4)
+      actionpack (= 7.1.3.4)
+      actionview (= 7.1.3.4)
+      activejob (= 7.1.3.4)
+      activesupport (= 7.1.3.4)
       mail (~> 2.5, >= 2.5.4)
       net-imap
       net-pop
       net-smtp
       rails-dom-testing (~> 2.2)
-    actionpack (7.1.3.3)
-      actionview (= 7.1.3.3)
-      activesupport (= 7.1.3.3)
+    actionpack (7.1.3.4)
+      actionview (= 7.1.3.4)
+      activesupport (= 7.1.3.4)
       nokogiri (>= 1.8.5)
       racc
       rack (>= 2.2.4)
@@ -46,35 +47,35 @@ GEM
       rack-test (>= 0.6.3)
       rails-dom-testing (~> 2.2)
       rails-html-sanitizer (~> 1.6)
-    actiontext (7.1.3.3)
-      actionpack (= 7.1.3.3)
-      activerecord (= 7.1.3.3)
-      activestorage (= 7.1.3.3)
-      activesupport (= 7.1.3.3)
+    actiontext (7.1.3.4)
+      actionpack (= 7.1.3.4)
+      activerecord (= 7.1.3.4)
+      activestorage (= 7.1.3.4)
+      activesupport (= 7.1.3.4)
       globalid (>= 0.6.0)
       nokogiri (>= 1.8.5)
-    actionview (7.1.3.3)
-      activesupport (= 7.1.3.3)
+    actionview (7.1.3.4)
+      activesupport (= 7.1.3.4)
       builder (~> 3.1)
       erubi (~> 1.11)
       rails-dom-testing (~> 2.2)
       rails-html-sanitizer (~> 1.6)
-    activejob (7.1.3.3)
-      activesupport (= 7.1.3.3)
+    activejob (7.1.3.4)
+      activesupport (= 7.1.3.4)
       globalid (>= 0.3.6)
-    activemodel (7.1.3.3)
-      activesupport (= 7.1.3.3)
-    activerecord (7.1.3.3)
-      activemodel (= 7.1.3.3)
-      activesupport (= 7.1.3.3)
+    activemodel (7.1.3.4)
+      activesupport (= 7.1.3.4)
+    activerecord (7.1.3.4)
+      activemodel (= 7.1.3.4)
+      activesupport (= 7.1.3.4)
       timeout (>= 0.4.0)
-    activestorage (7.1.3.3)
-      actionpack (= 7.1.3.3)
-      activejob (= 7.1.3.3)
-      activerecord (= 7.1.3.3)
-      activesupport (= 7.1.3.3)
+    activestorage (7.1.3.4)
+      actionpack (= 7.1.3.4)
+      activejob (= 7.1.3.4)
+      activerecord (= 7.1.3.4)
+      activesupport (= 7.1.3.4)
       marcel (~> 1.0)
-    activesupport (7.1.3.3)
+    activesupport (7.1.3.4)
       base64
       bigdecimal
       concurrent-ruby (~> 1.0, >= 1.0.2)
@@ -92,8 +93,8 @@ GEM
     base64 (0.2.0)
     bcrypt (3.1.20)
     bigdecimal (3.1.8)
-    builder (3.2.4)
-    concurrent-ruby (1.3.1)
+    builder (3.3.0)
+    concurrent-ruby (1.3.3)
     connection_pool (2.4.1)
     crass (1.0.6)
     date (3.3.4)
@@ -104,7 +105,7 @@ GEM
       responders
       warden (~> 1.2.3)
     drb (2.2.1)
-    erubi (1.12.0)
+    erubi (1.13.0)
     ffi (1.17.0-x86_64-linux-gnu)
     font-awesome-sass (5.13.1)
       sassc (>= 1.11)
@@ -115,10 +116,11 @@ GEM
     i18n (1.14.5)
       concurrent-ruby (~> 1.0)
     io-console (0.7.2)
-    irb (1.13.1)
+    irb (1.14.0)
       rdoc (>= 4.0.0)
       reline (>= 0.4.2)
     json (2.7.2)
+    language_filter (0.3.01)
     language_server-protocol (3.17.0.3)
     lint_roller (1.1.0)
     loofah (2.22.0)
@@ -131,9 +133,9 @@ GEM
       net-smtp
     marcel (1.0.4)
     mini_mime (1.1.5)
-    minitest (5.23.1)
+    minitest (5.24.1)
     mutex_m (0.2.0)
-    net-imap (0.4.12)
+    net-imap (0.4.14)
       date
       net-protocol
     net-pop (0.1.2)
@@ -143,11 +145,11 @@ GEM
     net-smtp (0.5.0)
       net-protocol
     nio4r (2.7.3)
-    nokogiri (1.16.5-x86_64-linux)
+    nokogiri (1.16.6-x86_64-linux)
       racc (~> 1.4)
     orm_adapter (0.5.0)
-    parallel (1.24.0)
-    parser (3.3.2.0)
+    parallel (1.25.1)
+    parser (3.3.4.0)
       ast (~> 2.4.1)
       racc
     psych (5.1.2)
@@ -155,7 +157,7 @@ GEM
     puma (6.4.2)
       nio4r (~> 2.0)
     racc (1.8.0)
-    rack (3.0.11)
+    rack (3.1.7)
     rack-session (2.0.0)
       rack (>= 3.0.0)
     rack-test (2.1.0)
@@ -163,20 +165,20 @@ GEM
     rackup (2.1.0)
       rack (>= 3)
       webrick (~> 1.8)
-    rails (7.1.3.3)
-      actioncable (= 7.1.3.3)
-      actionmailbox (= 7.1.3.3)
-      actionmailer (= 7.1.3.3)
-      actionpack (= 7.1.3.3)
-      actiontext (= 7.1.3.3)
-      actionview (= 7.1.3.3)
-      activejob (= 7.1.3.3)
-      activemodel (= 7.1.3.3)
-      activerecord (= 7.1.3.3)
-      activestorage (= 7.1.3.3)
-      activesupport (= 7.1.3.3)
+    rails (7.1.3.4)
+      actioncable (= 7.1.3.4)
+      actionmailbox (= 7.1.3.4)
+      actionmailer (= 7.1.3.4)
+      actionpack (= 7.1.3.4)
+      actiontext (= 7.1.3.4)
+      actionview (= 7.1.3.4)
+      activejob (= 7.1.3.4)
+      activemodel (= 7.1.3.4)
+      activerecord (= 7.1.3.4)
+      activestorage (= 7.1.3.4)
+      activesupport (= 7.1.3.4)
       bundler (>= 1.15.0)
-      railties (= 7.1.3.3)
+      railties (= 7.1.3.4)
     rails-dom-testing (2.2.0)
       activesupport (>= 5.0.0)
       minitest
@@ -184,9 +186,9 @@ GEM
     rails-html-sanitizer (1.6.0)
       loofah (~> 2.21)
       nokogiri (~> 1.14)
-    railties (7.1.3.3)
-      actionpack (= 7.1.3.3)
-      activesupport (= 7.1.3.3)
+    railties (7.1.3.4)
+      actionpack (= 7.1.3.4)
+      activesupport (= 7.1.3.4)
       irb
       rackup (>= 1.0.0)
       rake (>= 12.2)
@@ -197,14 +199,14 @@ GEM
     rdoc (6.7.0)
       psych (>= 4.0.0)
     regexp_parser (2.9.2)
-    reline (0.5.8)
+    reline (0.5.9)
       io-console (~> 0.5)
     responders (3.1.1)
       actionpack (>= 5.2)
       railties (>= 5.2)
-    rexml (3.2.8)
-      strscan (>= 3.0.9)
-    rubocop (1.63.5)
+    rexml (3.3.2)
+      strscan
+    rubocop (1.64.1)
       json (~> 2.3)
       language_server-protocol (>= 3.17.0)
       parallel (~> 1.10)
@@ -217,7 +219,7 @@ GEM
       unicode-display_width (>= 2.4.0, < 3.0)
     rubocop-ast (1.31.3)
       parser (>= 3.3.1.0)
-    rubocop-performance (1.21.0)
+    rubocop-performance (1.21.1)
       rubocop (>= 1.48.1, < 2.0)
       rubocop-ast (>= 1.31.1, < 2.0)
     ruby-progressbar (1.13.0)
@@ -226,15 +228,15 @@ GEM
     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-rails (3.5.1)
+      actionpack (>= 6.1)
+      activesupport (>= 6.1)
       sprockets (>= 3.0.0)
     sqlite3 (1.7.3-x86_64-linux)
-    standard (1.36.0)
+    standard (1.39.2)
       language_server-protocol (~> 3.17.0.2)
       lint_roller (~> 1.0)
-      rubocop (~> 1.63.0)
+      rubocop (~> 1.64.0)
       standard-custom (~> 1.0.0)
       standard-performance (~> 1.4)
     standard-custom (1.0.2)
@@ -245,7 +247,7 @@ GEM
       rubocop-performance (~> 1.21.0)
     standardrb (1.0.1)
       standard
-    stringio (3.1.0)
+    stringio (3.1.1)
     strscan (3.1.0)
     thor (1.3.1)
     timeout (0.4.1)
@@ -258,8 +260,8 @@ GEM
     websocket-driver (0.7.6)
       websocket-extensions (>= 0.1.0)
     websocket-extensions (0.1.5)
-    will_paginate (4.0.0)
-    zeitwerk (2.6.15)
+    will_paginate (4.0.1)
+    zeitwerk (2.6.16)
 
 PLATFORMS
   x86_64-linux-gnu
diff --git a/gemfiles/rails_main.gemfile.lock b/gemfiles/rails_main.gemfile.lock
index 1eeb031..25885b2 100644
--- a/gemfiles/rails_main.gemfile.lock
+++ b/gemfiles/rails_main.gemfile.lock
@@ -1,6 +1,6 @@
 GIT
   remote: https://github.com/rails/rails
-  revision: 3769f1eee6a1ec4f6438155d67477db6d192577f
+  revision: 0db535f88d856bcac66faee901df51aa493b639b
   branch: main
   specs:
     actioncable (8.0.0.alpha)
@@ -69,6 +69,7 @@ GIT
       connection_pool (>= 2.2.5)
       drb
       i18n (>= 1.6, < 2)
+      logger (>= 1.4.2)
       minitest (>= 5.1)
       tzinfo (~> 2.0, >= 2.0.5)
     rails (8.0.0.alpha)
@@ -100,6 +101,7 @@ PATH
     simple_discussion (1.3.0)
       font-awesome-sass (>= 5.13.0)
       friendly_id (>= 5.2.0)
+      language_filter (>= 0.3.01)
       rails (>= 4.2)
       will_paginate (>= 3.1.0)
 
@@ -114,8 +116,8 @@ GEM
     base64 (0.2.0)
     bcrypt (3.1.20)
     bigdecimal (3.1.8)
-    builder (3.2.4)
-    concurrent-ruby (1.3.1)
+    builder (3.3.0)
+    concurrent-ruby (1.3.3)
     connection_pool (2.4.1)
     crass (1.0.6)
     date (3.3.4)
@@ -126,9 +128,17 @@ GEM
       responders
       warden (~> 1.2.3)
     drb (2.2.1)
-    erubi (1.12.0)
-    ffi (1.17.0)
+    erubi (1.13.0)
+    ffi (1.17.0-aarch64-linux-gnu)
+    ffi (1.17.0-aarch64-linux-musl)
+    ffi (1.17.0-arm-linux-gnu)
+    ffi (1.17.0-arm-linux-musl)
+    ffi (1.17.0-arm64-darwin)
+    ffi (1.17.0-x86-linux-gnu)
+    ffi (1.17.0-x86-linux-musl)
+    ffi (1.17.0-x86_64-darwin)
     ffi (1.17.0-x86_64-linux-gnu)
+    ffi (1.17.0-x86_64-linux-musl)
     font-awesome-sass (5.13.1)
       sassc (>= 1.11)
     friendly_id (5.5.1)
@@ -138,12 +148,14 @@ GEM
     i18n (1.14.5)
       concurrent-ruby (~> 1.0)
     io-console (0.7.2)
-    irb (1.13.1)
+    irb (1.14.0)
       rdoc (>= 4.0.0)
       reline (>= 0.4.2)
     json (2.7.2)
+    language_filter (0.3.01)
     language_server-protocol (3.17.0.3)
     lint_roller (1.1.0)
+    logger (1.6.0)
     loofah (2.22.0)
       crass (~> 1.0.2)
       nokogiri (>= 1.12.0)
@@ -154,8 +166,8 @@ GEM
       net-smtp
     marcel (1.0.4)
     mini_mime (1.1.5)
-    minitest (5.23.1)
-    net-imap (0.4.12)
+    minitest (5.24.1)
+    net-imap (0.4.14)
       date
       net-protocol
     net-pop (0.1.2)
@@ -165,21 +177,21 @@ GEM
     net-smtp (0.5.0)
       net-protocol
     nio4r (2.7.3)
-    nokogiri (1.16.5-aarch64-linux)
+    nokogiri (1.16.6-aarch64-linux)
       racc (~> 1.4)
-    nokogiri (1.16.5-arm-linux)
+    nokogiri (1.16.6-arm-linux)
       racc (~> 1.4)
-    nokogiri (1.16.5-arm64-darwin)
+    nokogiri (1.16.6-arm64-darwin)
       racc (~> 1.4)
-    nokogiri (1.16.5-x86-linux)
+    nokogiri (1.16.6-x86-linux)
       racc (~> 1.4)
-    nokogiri (1.16.5-x86_64-darwin)
+    nokogiri (1.16.6-x86_64-darwin)
       racc (~> 1.4)
-    nokogiri (1.16.5-x86_64-linux)
+    nokogiri (1.16.6-x86_64-linux)
       racc (~> 1.4)
     orm_adapter (0.5.0)
-    parallel (1.24.0)
-    parser (3.3.2.0)
+    parallel (1.25.1)
+    parser (3.3.4.0)
       ast (~> 2.4.1)
       racc
     psych (5.1.2)
@@ -187,7 +199,7 @@ GEM
     puma (6.4.2)
       nio4r (~> 2.0)
     racc (1.8.0)
-    rack (3.0.11)
+    rack (3.1.7)
     rack-session (2.0.0)
       rack (>= 3.0.0)
     rack-test (2.1.0)
@@ -207,14 +219,14 @@ GEM
     rdoc (6.7.0)
       psych (>= 4.0.0)
     regexp_parser (2.9.2)
-    reline (0.5.8)
+    reline (0.5.9)
       io-console (~> 0.5)
     responders (3.1.1)
       actionpack (>= 5.2)
       railties (>= 5.2)
-    rexml (3.2.8)
-      strscan (>= 3.0.9)
-    rubocop (1.63.5)
+    rexml (3.3.2)
+      strscan
+    rubocop (1.64.1)
       json (~> 2.3)
       language_server-protocol (>= 3.17.0)
       parallel (~> 1.10)
@@ -227,7 +239,7 @@ GEM
       unicode-display_width (>= 2.4.0, < 3.0)
     rubocop-ast (1.31.3)
       parser (>= 3.3.1.0)
-    rubocop-performance (1.21.0)
+    rubocop-performance (1.21.1)
       rubocop (>= 1.48.1, < 2.0)
       rubocop-ast (>= 1.31.1, < 2.0)
     ruby-progressbar (1.13.0)
@@ -236,9 +248,9 @@ GEM
     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-rails (3.5.1)
+      actionpack (>= 6.1)
+      activesupport (>= 6.1)
       sprockets (>= 3.0.0)
     sqlite3 (2.0.2-aarch64-linux-gnu)
     sqlite3 (2.0.2-aarch64-linux-musl)
@@ -250,10 +262,10 @@ GEM
     sqlite3 (2.0.2-x86_64-darwin)
     sqlite3 (2.0.2-x86_64-linux-gnu)
     sqlite3 (2.0.2-x86_64-linux-musl)
-    standard (1.36.0)
+    standard (1.39.2)
       language_server-protocol (~> 3.17.0.2)
       lint_roller (~> 1.0)
-      rubocop (~> 1.63.0)
+      rubocop (~> 1.64.0)
       standard-custom (~> 1.0.0)
       standard-performance (~> 1.4)
     standard-custom (1.0.2)
@@ -264,7 +276,7 @@ GEM
       rubocop-performance (~> 1.21.0)
     standardrb (1.0.1)
       standard
-    stringio (3.1.0)
+    stringio (3.1.1)
     strscan (3.1.0)
     thor (1.3.1)
     timeout (0.4.1)
@@ -278,8 +290,8 @@ GEM
     websocket-driver (0.7.6)
       websocket-extensions (>= 0.1.0)
     websocket-extensions (0.1.5)
-    will_paginate (4.0.0)
-    zeitwerk (2.6.15)
+    will_paginate (4.0.1)
+    zeitwerk (2.6.16)
 
 PLATFORMS
   aarch64-linux
diff --git a/lib/simple_discussion.rb b/lib/simple_discussion.rb
index 444154b..974718d 100644
--- a/lib/simple_discussion.rb
+++ b/lib/simple_discussion.rb
@@ -12,8 +12,10 @@ module SimpleDiscussion
   # Define who owns the subscription
   mattr_accessor :send_email_notifications
   mattr_accessor :send_slack_notifications
+  mattr_accessor :profanity_filter
   @@send_email_notifications = true
   @@send_slack_notifications = true
+  @@profanity_filter = true
 
   def self.setup
     yield self
diff --git a/simple_discussion.gemspec b/simple_discussion.gemspec
index c243509..d7da08a 100644
--- a/simple_discussion.gemspec
+++ b/simple_discussion.gemspec
@@ -26,5 +26,6 @@ Gem::Specification.new do |spec|
   spec.add_dependency "friendly_id", ">= 5.2.0"
   spec.add_dependency "rails", ">= 4.2"
   spec.add_dependency "will_paginate", ">= 3.1.0"
+  spec.add_dependency "language_filter", ">= 0.3.01"
   spec.metadata["rubygems_mfa_required"] = "true"
 end
diff --git a/test/integration/forum_test.rb b/test/integration/forum_test.rb
index 56965c0..882dabf 100644
--- a/test/integration/forum_test.rb
+++ b/test/integration/forum_test.rb
@@ -1,4 +1,5 @@
 require "test_helper"
+require "language_filter"
 
 class ForumTest < ActionDispatch::IntegrationTest
   include ActionView::RecordIdentifier
@@ -6,6 +7,7 @@ class ForumTest < ActionDispatch::IntegrationTest
 
   setup do
     sign_in users(:one)
+    @filter = LanguageFilter::Filter.new
   end
 
   test "threads index" do
@@ -53,4 +55,76 @@ class ForumTest < ActionDispatch::IntegrationTest
 
     assert_redirected_to forum_thread_path(forum_threads(:hello), anchor: dom_id(ForumPost.last))
   end
+
+  test "cannot create a forum thread with inappropriate language in title" do
+    inappropriate_word = @filter.matchlist.to_a.sample
+    assert_no_difference "ForumThread.count" do
+      assert_no_difference "ForumPost.count" do
+        post forum_threads_path, params: {
+          forum_thread: {
+            forum_category_id: forum_categories(:general).id,
+            title: "This title contains inappropriate language: #{inappropriate_word}",
+            forum_posts_attributes: [{
+              body: "Clean body"
+            }]
+          }
+        }
+      end
+    end
+
+    assert_response :unprocessable_entity
+    assert_includes response.body, "contains inappropriate language: #{inappropriate_word}"
+  end
+
+  test "cannot create a forum thread with inappropriate language in body" do
+    inappropriate_word = @filter.matchlist.to_a.sample
+    assert_no_difference "ForumThread.count" do
+      assert_no_difference "ForumPost.count" do
+        post forum_threads_path, params: {
+          forum_thread: {
+            forum_category_id: forum_categories(:general).id,
+            title: "Clean Title",
+            forum_posts_attributes: [{
+              body: "contains inappropriate language: #{inappropriate_word}"
+            }]
+          }
+        }
+      end
+    end
+
+    assert_response :unprocessable_entity
+    assert_includes response.body, "contains inappropriate language: #{inappropriate_word}"
+  end
+
+  test "cannot reply to a forum thread with inappropriate language" do
+    inappropriate_word = @filter.matchlist.to_a.sample
+    assert_no_difference "ForumPost.count" do
+      post forum_thread_forum_posts_path(forum_threads(:hello)), params: {
+        forum_post: {
+          body: "contains inappropriate language: #{inappropriate_word}"
+        }
+      }
+    end
+
+    assert_response :unprocessable_entity
+    assert_includes response.body, "contains inappropriate language: #{inappropriate_word}"
+  end
+
+  test "can create a forum thread with appropriate language in title and body" do
+    assert_difference "ForumThread.count" do
+      assert_difference "ForumPost.count" do
+        post forum_threads_path, params: {
+          forum_thread: {
+            forum_category_id: forum_categories(:general).id,
+            title: "Clean Thread Title",
+            forum_posts_attributes: [{
+              body: "This is a clean and appropriate post."
+            }]
+          }
+        }
+      end
+    end
+
+    assert_redirected_to forum_thread_path(ForumThread.last)
+  end
 end