diff --git a/.rubocop.yml b/.rubocop.yml
index 86ff8fdc5..bd8f7aca6 100644
--- a/.rubocop.yml
+++ b/.rubocop.yml
@@ -7,7 +7,7 @@ AllCops:
   TargetRubyVersion: 3.1
   Exclude:
     - 'config/**/*'
-    - 'db/**/*'
+    - 'db/schema.rb'
     - 'scripts/**/*'
     - 'bin/**/*'
     - 'lib/namespaced_env_cache.rb'
diff --git a/app/assets/javascripts/site_settings.js b/app/assets/javascripts/site_settings.js
index 59d0f4f39..1d347db55 100644
--- a/app/assets/javascripts/site_settings.js
+++ b/app/assets/javascripts/site_settings.js
@@ -5,6 +5,7 @@ $(() => {
   const settingEditFields = {
     'array': $(`<select class="form-element js-setting-edit" multiple></select>`),
     'string': $(`<input type="text" class="form-element js-setting-edit" />`),
+    'uri_path': $(`<input type="text" class="form-element js-setting-edit" />`),
     'integer': $('<input type="number" class="form-element js-setting-edit" />'),
     'float': $('<input type="number" step="0.0001" class="form-element js-setting-edit" />'),
     'boolean': $(`<select class="form-element js-setting-edit">
diff --git a/app/helpers/seeds_helper.rb b/app/helpers/seeds_helper.rb
index 681e2ac92..65b42e752 100644
--- a/app/helpers/seeds_helper.rb
+++ b/app/helpers/seeds_helper.rb
@@ -34,4 +34,24 @@ def self.prioritize(types, files)
       (priority.index(a.second) || 999) <=> (priority.index(b.second) || 999)
     end.to_h
   end
+
+  Stats = Struct.new('Stats', :created, :updated, :errored, :skipped) do |struct|
+    struct.members.each do |member|
+      define_method "add_#{member}" do |num|
+        self[member] += num
+      end
+    end
+
+    def <<(other)
+      members.each do |member|
+        send("add_#{member}", other[member])
+      end
+    end
+
+    def print
+      members.map { |m| self[m]&.positive? ? "#{m} #{self[m]}" : nil }
+             .compact
+             .join(', ')
+    end
+  end
 end
diff --git a/app/models/site_setting.rb b/app/models/site_setting.rb
index 50e8d8b0e..d40b547de 100644
--- a/app/models/site_setting.rb
+++ b/app/models/site_setting.rb
@@ -51,7 +51,7 @@ def global?
   end
 
   # Defines predicates for each value type
-  [:array, :boolean, :float, :integer, :string, :text].each do |method|
+  [:array, :boolean, :float, :integer, :string, :text, :uri_path].each do |method|
     define_method "#{method}?" do
       value_type.downcase.to_sym == method
     end
diff --git a/app/views/layouts/_head.html.erb b/app/views/layouts/_head.html.erb
index 13c20f521..591fa2b80 100644
--- a/app/views/layouts/_head.html.erb
+++ b/app/views/layouts/_head.html.erb
@@ -11,7 +11,12 @@
   <%= page_title %>
 </title>
 
-<% icon_path = SiteSetting['IconPath'] %>
+<%
+  css_path = SiteSetting['CSSPath']
+  icon_path = SiteSetting['IconPath']
+  js_path = SiteSetting['JSPath']
+%>
+
 <link rel="icon" href="<%= icon_path.present? ? icon_path : '/assets/favicon.ico' %>" />
 <link rel="search"
       type="application/opensearchdescription+xml"
@@ -23,7 +28,9 @@
 <%= stylesheet_link_tag "https://cdn.jsdelivr.net/npm/@fortawesome/fontawesome-free@5.15.4/css/all.min.css" %>
 <%= stylesheet_link_tag "https://cdn.jsdelivr.net/npm/@codidact/co-design@latest/dist/codidact.css" %>
 <%= stylesheet_link_tag "https://cdn.jsdelivr.net/npm/select2@4.0.12/dist/css/select2.min.css" %>
-<%= stylesheet_link_tag "/assets/community/#{@community.host.split('.')[0]}.css" %>
+<% if css_path.present? %>
+  <%= stylesheet_link_tag css_path %>
+<% end %>
 <%= stylesheet_link_tag 'application', media: 'all' %>
 
 <%= javascript_include_tag "https://cdn.jsdelivr.net/npm/jquery@2.2.2/dist/jquery.min.js" %>
@@ -33,7 +40,9 @@
   <%= javascript_include_tag "https://js.stripe.com/v3/" %>
 <% end %>
 <%= javascript_include_tag "https://cdn.jsdelivr.net/npm/dompurify@2.5.8/dist/purify.min.js" %>
-<%= javascript_include_tag "/assets/community/#{@community.host.split('.')[0]}.js" %>
+<% if js_path.present? %>
+  <%= javascript_include_tag js_path %>
+<% end %>
 <%= javascript_include_tag 'application' %>
 <script src="https://cdn.jsdelivr.net/npm/@codidact/co-design@latest/js/co-design.js" defer></script>
 
diff --git a/config/routes.rb b/config/routes.rb
index ef5b89306..05961caad 100644
--- a/config/routes.rb
+++ b/config/routes.rb
@@ -403,8 +403,4 @@
   scope 'network' do
     root                                   to: 'fake_community#communities', as: :fc_communities
   end
-
-  # Communities can have custom js or css defined (placed in public/assets/community).
-  # If these are not defined for a community, respond with 204 (ok but empty)
-  get '/assets/community/*path', to: ->(env) { [204, {}, ['']] }
 end
diff --git a/db/migrate/20160424111225_devise_create_users.rb b/db/migrate/20160424111225_devise_create_users.rb
index 9200e8b11..343c42396 100644
--- a/db/migrate/20160424111225_devise_create_users.rb
+++ b/db/migrate/20160424111225_devise_create_users.rb
@@ -2,8 +2,8 @@ class DeviseCreateUsers < ActiveRecord::Migration
   def change
     create_table :users do |t|
       ## Database authenticatable
-      t.string :email,              null: false, default: ""
-      t.string :encrypted_password, null: false, default: ""
+      t.string :email,              null: false, default: ''
+      t.string :encrypted_password, null: false, default: ''
 
       ## Recoverable
       t.string   :reset_password_token
@@ -30,7 +30,6 @@ def change
       # t.string   :unlock_token # Only if unlock strategy is :email or :both
       # t.datetime :locked_at
 
-
       t.timestamps null: false
     end
 
diff --git a/db/migrate/20160501095155_create_comments.rb b/db/migrate/20160501095155_create_comments.rb
index ec17c41ab..3967d6dca 100644
--- a/db/migrate/20160501095155_create_comments.rb
+++ b/db/migrate/20160501095155_create_comments.rb
@@ -1,7 +1,6 @@
 class CreateComments < ActiveRecord::Migration
   def change
     create_table :comments do |t|
-
       t.timestamps null: false
     end
   end
diff --git a/db/migrate/20191205135001_create_active_storage_tables.active_storage.rb b/db/migrate/20191205135001_create_active_storage_tables.active_storage.rb
index 0b2ce257c..ff9b56ba6 100644
--- a/db/migrate/20191205135001_create_active_storage_tables.active_storage.rb
+++ b/db/migrate/20191205135001_create_active_storage_tables.active_storage.rb
@@ -10,7 +10,7 @@ def change
       t.string   :checksum,   null: false
       t.datetime :created_at, null: false
 
-      t.index [ :key ], unique: true
+      t.index [:key], unique: true
     end
 
     create_table :active_storage_attachments do |t|
@@ -20,7 +20,9 @@ def change
 
       t.datetime :created_at, null: false
 
-      t.index [ :record_type, :record_id, :name, :blob_id ], name: "index_active_storage_attachments_uniqueness", unique: true
+      t.index [:record_type, :record_id, :name, :blob_id],
+              name: 'index_active_storage_attachments_uniqueness',
+              unique: true
       t.foreign_key :active_storage_blobs, column: :blob_id
     end
   end
diff --git a/db/migrate/20191225135200_add_category_to_site_settings.rb b/db/migrate/20191225135200_add_category_to_site_settings.rb
index d9100c092..75eb72eff 100644
--- a/db/migrate/20191225135200_add_category_to_site_settings.rb
+++ b/db/migrate/20191225135200_add_category_to_site_settings.rb
@@ -1,6 +1,6 @@
-class AddCategoryToSiteSettings < ActiveRecord::Migration[5.2]
-  def change
-    add_column :site_settings, :category, :string
-    add_index :site_settings, :category
-  end
-end
\ No newline at end of file
+class AddCategoryToSiteSettings < ActiveRecord::Migration[5.2]
+  def change
+    add_column :site_settings, :category, :string
+    add_index :site_settings, :category
+  end
+end
diff --git a/db/migrate/20191225141700_add_setting_categories.rb b/db/migrate/20191225141700_add_setting_categories.rb
index 768762959..f2dffb233 100644
--- a/db/migrate/20191225141700_add_setting_categories.rb
+++ b/db/migrate/20191225141700_add_setting_categories.rb
@@ -1,37 +1,37 @@
-class AddSettingCategories < ActiveRecord::Migration[5.2]
-  def change
-    # This migration only needs to run if there are already existing settings without a category.
-    # That's not the case in test, because they get seeded as necessary, so we don't need to run this.
-    return if Rails.env.test?
-
-    categories = {
-      site_name: :site_details,
-      site_logo_path: :site_details,
-      question_up_vote_rep: :reputation_and_voting,
-      question_down_vote_rep: :reputation_and_voting,
-      answer_up_vote_rep: :reputation_and_voting,
-      answer_down_vote_rep: :reputation_and_voting,
-      allow_self_votes: :reputation_and_voting,
-      asking_guidance: :help_and_guidance,
-      answering_guidance: :help_and_guidance,
-      administrator_contact_email: :site_details,
-      hot_questions_count: :display,
-      admin_badge_character: :display,
-      mod_badge_character: :display,
-      soft_delete_transfer_user: :advanced_settings,
-      new_user_initial_rep: :reputation_and_voting,
-      se_api_client_id: :integrations,
-      se_api_client_secret: :integrations,
-      se_api_key: :integrations,
-      content_license_name: :site_details,
-      content_license_link: :site_details,
-      max_tag_length: :site_details,
-      max_upload_size: :advanced_settings
-    }
-
-    categories.each do |name, category|
-      puts "#{name.to_s.camelize}: #{category.to_s.camelize}"
-      SiteSetting.find_by(name: name.to_s.camelize).update(category: category.to_s.camelize)
-    end
-  end
-end
\ No newline at end of file
+class AddSettingCategories < ActiveRecord::Migration[5.2]
+  def change
+    # This migration only needs to run if there are already existing settings without a category.
+    # That's not the case in test, because they get seeded as necessary, so we don't need to run this.
+    return if Rails.env.test?
+
+    categories = {
+      site_name: :site_details,
+      site_logo_path: :site_details,
+      question_up_vote_rep: :reputation_and_voting,
+      question_down_vote_rep: :reputation_and_voting,
+      answer_up_vote_rep: :reputation_and_voting,
+      answer_down_vote_rep: :reputation_and_voting,
+      allow_self_votes: :reputation_and_voting,
+      asking_guidance: :help_and_guidance,
+      answering_guidance: :help_and_guidance,
+      administrator_contact_email: :site_details,
+      hot_questions_count: :display,
+      admin_badge_character: :display,
+      mod_badge_character: :display,
+      soft_delete_transfer_user: :advanced_settings,
+      new_user_initial_rep: :reputation_and_voting,
+      se_api_client_id: :integrations,
+      se_api_client_secret: :integrations,
+      se_api_key: :integrations,
+      content_license_name: :site_details,
+      content_license_link: :site_details,
+      max_tag_length: :site_details,
+      max_upload_size: :advanced_settings
+    }
+
+    categories.each do |name, category|
+      puts "#{name.to_s.camelize}: #{category.to_s.camelize}"
+      SiteSetting.find_by(name: name.to_s.camelize).update(category: category.to_s.camelize)
+    end
+  end
+end
diff --git a/db/migrate/20200202052500_create_communities_table.rb b/db/migrate/20200202052500_create_communities_table.rb
index 7bb129a8c..0c90c27ea 100644
--- a/db/migrate/20200202052500_create_communities_table.rb
+++ b/db/migrate/20200202052500_create_communities_table.rb
@@ -22,7 +22,7 @@ def change
       dir.up do
         @community = Community.create(name: 'Sample', host: 'sample.qpixel.com')
         community_users = MigrationSafeUser.pluck(:id, :reputation).map do |user_id, reputation|
-          {community_id: @community.id, user_id: user_id, reputation: reputation}
+          { community_id: @community.id, user_id: user_id, reputation: reputation }
         end
         CommunityUser.create(community_users)
         change_table :users do |t|
@@ -38,15 +38,14 @@ def change
           t.integer :reputation, after: 'is_admin'
         end
         @community = Community.first
-        CommunityUser.where(community_id: @community.id).pluck(:user_id,:reputation).map do |user_id, reputation|
+        CommunityUser.where(community_id: @community.id).pluck(:user_id, :reputation).map do |user_id, reputation|
           MigrationSafeUser.find(user_id).update(reputation: reputation)
         end
       end
     end
 
-    %i(posts comments flags post_histories votes
-       notifications privileges site_settings subscriptions tags
-      ).each do |table|
+    %i[posts comments flags post_histories votes
+       notifications privileges site_settings subscriptions tags].each do |table|
       change_table table do |t|
         t.references :community
       end
diff --git a/db/migrate/20200317173232_close_reasons.rb b/db/migrate/20200317173232_close_reasons.rb
index a28497373..271ddbe16 100644
--- a/db/migrate/20200317173232_close_reasons.rb
+++ b/db/migrate/20200317173232_close_reasons.rb
@@ -7,6 +7,6 @@ def change
       t.boolean :requires_other_post
     end
     add_reference :posts, :close_reasons, foreign_key: true, null: true
-    add_reference :posts, :duplicate_post, foreign_key: {to_table: :posts}, null: true
+    add_reference :posts, :duplicate_post, foreign_key: { to_table: :posts }, null: true
   end
 end
diff --git a/db/migrate/20200321135945_add_tag_set_reference_to_tags.rb b/db/migrate/20200321135945_add_tag_set_reference_to_tags.rb
index 4711ab260..aa4ac9e50 100644
--- a/db/migrate/20200321135945_add_tag_set_reference_to_tags.rb
+++ b/db/migrate/20200321135945_add_tag_set_reference_to_tags.rb
@@ -5,14 +5,15 @@ def change
       RequestContext.community = community
       main_set = TagSet.find_or_create_by(community: community, name: 'Main')
       meta_set = TagSet.find_or_create_by(community: community, name: 'Meta')
-      sql = "select tag_id from posts_tags where post_id in (select id from posts where community_id = #{community.id} and category = '$cat')"
+      in_sql = "(select id from posts where community_id = #{community.id} and category = '$cat')"
+      sql = "select tag_id from posts_tags where post_id in #{in_sql}"
       main_sql = sql.gsub('$cat', 'Main')
       meta_sql = sql.gsub('$cat', 'Meta')
-      update_sql = "update tags set tag_set_id = $tsid where id in ($sql);"
+      update_sql = 'update tags set tag_set_id = $tsid where id in ($sql);'
       ActiveRecord::Base.connection.execute update_sql.gsub('$tsid', main_set.id.to_s).gsub('$sql', main_sql)
       ActiveRecord::Base.connection.execute update_sql.gsub('$tsid', meta_set.id.to_s).gsub('$sql', meta_sql)
     end
-    ActiveRecord::Base.connection.execute "delete from tags where tag_set_id is null;"
+    ActiveRecord::Base.connection.execute 'delete from tags where tag_set_id is null;'
     change_column_null :tags, :tag_set_id, false
   end
 end
diff --git a/db/migrate/20200512115318_create_suggested_edits.rb b/db/migrate/20200512115318_create_suggested_edits.rb
index 22c6eb219..e97c7bea8 100644
--- a/db/migrate/20200512115318_create_suggested_edits.rb
+++ b/db/migrate/20200512115318_create_suggested_edits.rb
@@ -10,13 +10,12 @@ def change
       t.string :tags_cache, null: true
       t.text :body_markdown, null: true
 
-
       t.string :comment, null: true
 
       t.boolean :active
       t.boolean :accepted
       t.datetime :decided_at
-      t.references :decided_by, foreign_key: {to_table: :users}, null: true
+      t.references :decided_by, foreign_key: { to_table: :users }, null: true
       t.string :rejected_comment
 
       t.timestamps
diff --git a/db/migrate/20200618094826_add_suspensions_and_warnings.rb b/db/migrate/20200618094826_add_suspensions_and_warnings.rb
index ec78c7a0e..5a955fc32 100644
--- a/db/migrate/20200618094826_add_suspensions_and_warnings.rb
+++ b/db/migrate/20200618094826_add_suspensions_and_warnings.rb
@@ -2,13 +2,13 @@ class AddSuspensionsAndWarnings < ActiveRecord::Migration[5.2]
   def change
     create_table :warnings do |t|
       t.references :community_user, foreign_key: true
-      
+
       t.text :body, null: true
       t.boolean :is_suspension
-      t.datetime :suspension_end     
+      t.datetime :suspension_end
       t.boolean :active
-      
-      t.references :author, foreign_key: {to_table: :users}, null: true
+
+      t.references :author, foreign_key: { to_table: :users }, null: true
 
       t.timestamps
     end
diff --git a/db/migrate/20200618124645_add_warning_templates.rb b/db/migrate/20200618124645_add_warning_templates.rb
index d4abcebbf..ec8c3d26b 100644
--- a/db/migrate/20200618124645_add_warning_templates.rb
+++ b/db/migrate/20200618124645_add_warning_templates.rb
@@ -2,11 +2,11 @@ class AddWarningTemplates < ActiveRecord::Migration[5.2]
   def change
     create_table :warning_templates do |t|
       t.references :community, foreign_key: true
-      
+
       t.string :name
       t.text :body
       t.boolean :active
-      
+
       t.timestamps
     end
   end
diff --git a/db/migrate/20201231124614_create_comment_threads.rb b/db/migrate/20201231124614_create_comment_threads.rb
index 0172b6745..ec4e97b43 100644
--- a/db/migrate/20201231124614_create_comment_threads.rb
+++ b/db/migrate/20201231124614_create_comment_threads.rb
@@ -6,16 +6,16 @@ def change
       t.references :post
 
       t.boolean :locked
-      t.references :locked_by, foreign_key: {to_table: :users}, null: true
+      t.references :locked_by, foreign_key: { to_table: :users }, null: true
       t.timestamp :locked_until, null: true
 
       t.boolean :archived
-      t.references :archived_by, foreign_key: {to_table: :users}, null: true
+      t.references :archived_by, foreign_key: { to_table: :users }, null: true
       t.timestamp :archived_until, null: true
       t.boolean :ever_archived_before
 
       t.boolean :deleted
-      t.references :deleted_by, foreign_key: {to_table: :users}, null: true
+      t.references :deleted_by, foreign_key: { to_table: :users }, null: true
 
       t.timestamps
     end
@@ -24,6 +24,6 @@ def change
 
     add_column :comments, :has_reference, :boolean
     add_column :comments, :reference_text, :text, null: true
-    add_reference :comments, :references_comment, foreign_key: {to_table: :comments}, null: true
+    add_reference :comments, :references_comment, foreign_key: { to_table: :comments }, null: true
   end
 end
diff --git a/db/migrate/20210710203352_create_reaction_types.rb b/db/migrate/20210710203352_create_reaction_types.rb
index 946053418..579eef8f3 100644
--- a/db/migrate/20210710203352_create_reaction_types.rb
+++ b/db/migrate/20210710203352_create_reaction_types.rb
@@ -7,12 +7,12 @@ def change
 
       t.string :icon
       t.string :color
-      
+
       t.boolean :requires_comment
-      
+
       t.references :community
       t.integer :position
-      
+
       t.timestamps
     end
   end
diff --git a/db/migrate/20210821080736_change_notifications_content_field_type.rb b/db/migrate/20210821080736_change_notifications_content_field_type.rb
index f2da91307..b3d9fc5a9 100644
--- a/db/migrate/20210821080736_change_notifications_content_field_type.rb
+++ b/db/migrate/20210821080736_change_notifications_content_field_type.rb
@@ -2,4 +2,4 @@ class ChangeNotificationsContentFieldType < ActiveRecord::Migration[5.2]
   def change
     change_column :notifications, :content, :text
   end
-end
\ No newline at end of file
+end
diff --git a/db/migrate/20220811131155_create_sso_profile.rb b/db/migrate/20220811131155_create_sso_profile.rb
index 1ef086211..0c91dedc3 100644
--- a/db/migrate/20220811131155_create_sso_profile.rb
+++ b/db/migrate/20220811131155_create_sso_profile.rb
@@ -5,4 +5,4 @@ def change
       t.references :user, null: false, foreign_key: true
     end
   end
-end
\ No newline at end of file
+end
diff --git a/db/migrate/20220901194344_add_service_name_to_active_storage_blobs.active_storage.rb b/db/migrate/20220901194344_add_service_name_to_active_storage_blobs.active_storage.rb
index 9967a1323..d725fa2f1 100644
--- a/db/migrate/20220901194344_add_service_name_to_active_storage_blobs.active_storage.rb
+++ b/db/migrate/20220901194344_add_service_name_to_active_storage_blobs.active_storage.rb
@@ -4,7 +4,9 @@ def up
     unless column_exists?(:active_storage_blobs, :service_name)
       add_column :active_storage_blobs, :service_name, :string
 
-      if configured_service = ActiveStorage::Blob.service.name
+      configured_service = ActiveStorage::Blob.service.name
+
+      if configured_service
         ActiveStorage::Blob.unscoped.update_all(service_name: configured_service)
       end
 
diff --git a/db/migrate/20220901194345_create_active_storage_variant_records.active_storage.rb b/db/migrate/20220901194345_create_active_storage_variant_records.active_storage.rb
index a2862695e..71b27d1c1 100644
--- a/db/migrate/20220901194345_create_active_storage_variant_records.active_storage.rb
+++ b/db/migrate/20220901194345_create_active_storage_variant_records.active_storage.rb
@@ -5,7 +5,7 @@ def change
       t.belongs_to :blob, null: false, index: false
       t.string :variation_digest, null: false
 
-      t.index %i[ blob_id variation_digest ], name: "index_active_storage_variant_records_uniqueness", unique: true
+      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
diff --git a/db/migrate/20250123141400_create_user_websites.rb b/db/migrate/20250123141400_create_user_websites.rb
index ec77b2d17..34e58a9b9 100644
--- a/db/migrate/20250123141400_create_user_websites.rb
+++ b/db/migrate/20250123141400_create_user_websites.rb
@@ -1,7 +1,7 @@
 class CreateUserWebsites < ActiveRecord::Migration[7.0]
   def change
     create_table :user_websites do |t|
-      t.column :label, :string, limit:80
+      t.column :label, :string, limit: 80
       t.string :url
       t.integer :position
     end
diff --git a/db/migrate/20250128030358_add_lock_version_to_maintenance_tasks_runs.maintenance_tasks.rb b/db/migrate/20250128030358_add_lock_version_to_maintenance_tasks_runs.maintenance_tasks.rb
index b302565af..3782e472e 100644
--- a/db/migrate/20250128030358_add_lock_version_to_maintenance_tasks_runs.maintenance_tasks.rb
+++ b/db/migrate/20250128030358_add_lock_version_to_maintenance_tasks_runs.maintenance_tasks.rb
@@ -8,7 +8,7 @@ def change
       :lock_version,
       :integer,
       default: 0,
-      null: false,
+      null: false
     )
   end
 end
diff --git a/db/migrate/20250128030360_add_index_on_task_name_and_status_to_runs.maintenance_tasks.rb b/db/migrate/20250128030360_add_index_on_task_name_and_status_to_runs.maintenance_tasks.rb
index 74d77e6be..5f6432454 100644
--- a/db/migrate/20250128030360_add_index_on_task_name_and_status_to_runs.maintenance_tasks.rb
+++ b/db/migrate/20250128030360_add_index_on_task_name_and_status_to_runs.maintenance_tasks.rb
@@ -7,14 +7,14 @@ def change
       :maintenance_tasks_runs,
       column: [:task_name, :created_at],
       order: { created_at: :desc },
-      name: :index_maintenance_tasks_runs_on_task_name_and_created_at,
+      name: :index_maintenance_tasks_runs_on_task_name_and_created_at
     )
 
     add_index(
       :maintenance_tasks_runs,
       [:task_name, :status, :created_at],
       name: :index_maintenance_tasks_runs,
-      order: { created_at: :desc },
+      order: { created_at: :desc }
     )
   end
 end
diff --git a/db/scripts/create_tags_path_view.rb b/db/scripts/create_tags_path_view.rb
index 99ddc3b58..3edd6e3d0 100644
--- a/db/scripts/create_tags_path_view.rb
+++ b/db/scripts/create_tags_path_view.rb
@@ -1 +1 @@
-ActiveRecord::Base.connection.execute File.read(Rails.root.join('db/scripts/create_tags_path_view.sql'))
\ No newline at end of file
+ActiveRecord::Base.connection.execute File.read(Rails.root.join('db/scripts/create_tags_path_view.sql'))
diff --git a/db/scripts/reset_collations.rb b/db/scripts/reset_collations.rb
index 1afebb8b8..2e807a65e 100644
--- a/db/scripts/reset_collations.rb
+++ b/db/scripts/reset_collations.rb
@@ -6,7 +6,7 @@
 #
 # Lifesaving reference: https://stackoverflow.com/q/1294117/3160466
 
-tables_columns = ActiveRecord::Base.connection.tables.map { |t| [t, ActiveRecord::Base.connection.columns(t)] }.to_h
+tables_columns = ActiveRecord::Base.connection.tables.to_h { |t| [t, ActiveRecord::Base.connection.columns(t)] }
 
 tables_columns.each do |t, cs|
   puts t
@@ -19,6 +19,10 @@
   puts '  ALTER MODIFY...'
   cs.select { |c| %i[string text].include? c.type }.each do |c|
     puts "    #{c.name}"
-    ActiveRecord::Base.connection.execute "ALTER TABLE `#{t}` MODIFY `#{c.name}` #{c.sql_type} CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;"
+    sql = "ALTER TABLE `#{t}` MODIFY `#{c.name}` #{c.sql_type} CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;"
+    ActiveRecord::Base.connection.execute sql
+  rescue => e
+    puts "failed to reset collations on #{t}"
+    puts "message: #{e.message}"
   end
 end
diff --git a/db/seeds.rb b/db/seeds.rb
index c8e6180af..ff74e48b3 100644
--- a/db/seeds.rb
+++ b/db/seeds.rb
@@ -2,7 +2,7 @@
 
 Rails.application.eager_load!
 
-files = SeedsHelper.files(ENV['SEEDS'])
+files = SeedsHelper.files(ENV.fetch('SEEDS', nil))
 types = SeedsHelper.types(files)
 sorted = SeedsHelper.prioritize(types, files)
 
@@ -24,46 +24,25 @@ def expand_ids(type, seeds)
     columns = type.column_names.select { |name| name.match(/^.*_id$/) }
     new_seed = seed.deep_symbolize_keys
     columns.each do |column|
-      begin
-        column_type_name = column.chomp('_id')
-        column_type = column_type_name.classify.constantize
-        new_seed = new_seed.except(column.to_sym)
-                           .merge(column_type_name.to_sym => column_type.unscoped.find(seed[column.to_sym]))
-      rescue StandardError
-        # Either the type does not exist or the value specified as the id is not valid, ignore.
-        next
-      end
+      column_type_name = column.chomp('_id')
+      column_type = column_type_name.classify.constantize
+      new_seed = new_seed.except(column.to_sym)
+                         .merge(column_type_name.to_sym => column_type.unscoped.find(seed[column.to_sym]))
+    rescue StandardError
+      # Either the type does not exist or the value specified as the id is not valid, ignore.
+      next
     end
     new_seed
   end
 end
 
-def create_objects(type, seed)
-  seeds = expand_communities(type, seed)
-  seeds = expand_ids(type, seeds)
-
-  # Actually create the objects and count successes
-  objs = type.create seeds
-
-  skipped = objs.select { |o| o.errors.any? }.size
-  created = objs.select { |o| !o.errors.any? }.size
-
-  # Post type cache must be manually cleared \
-  # (its mappings need it, but only the controller clears the cache on create)
-  if type == PostType
-    type.clear_ids_cache
-  end
-
-  [created, skipped]
-end
-
 def ensure_system_user_abilities
   system_users = CommunityUser.unscoped.where(user_id: -1)
 
   system_users.each do |su|
     abilities = Ability.unscoped
-      .where(internal_id: ['everyone', 'mod', 'unrestricted'])
-      .where(community_id: su.community_id)
+                       .where(internal_id: ['everyone', 'mod', 'unrestricted'])
+                       .where(community_id: su.community_id)
 
     user_abilities = UserAbility.unscoped.where(community_user_id: su.id)
 
@@ -78,6 +57,18 @@ def ensure_system_user_abilities
   end
 end
 
+def init_seed(type, seed)
+  seed.each do |attr, value|
+    if value.is_a?(String) && value.start_with?('$FILE ')
+      seed[attr] = File.read(Rails.root.join('db/seeds', value.gsub('$FILE ', '')))
+    end
+  end
+
+  if type == Post
+    seed['body'] = render_seed(seed)
+  end
+end
+
 def render_seed(seed)
   ApplicationController.helpers.render_markdown(seed['body_markdown'])
 end
@@ -86,81 +77,148 @@ def render_seed(seed)
 def not_edited?(post)
   PostHistory.where(post: post)
              .where.not(post_history_type: PostHistoryType.find_by(name: 'initial_revision'))
-             .count.zero?
+             .none?
 end
 
-sorted.each do |f, type|
-  begin
-    processed = ERB.new(File.read(f)).result(binding)
-    data = YAML.load(processed)
-    created = 0
-    errored = 0
-    skipped = 0
-    updated = 0
-    data.each do |seed|
-      seed.each do |attr, value|
-        if value.is_a?(String) && value.start_with?("$FILE ")
-          seed[attr] = File.read(Rails.root.join('db/seeds', value.gsub("$FILE ", '')))
-        end
-      end
+def no_initial_revision?(post)
+  PostHistory.where(post: post)
+             .where(post_history_type: PostHistoryType.find_by(name: 'initial_revision'))
+             .none?
+end
 
-      if type == Post
-        seed['body'] = render_seed(seed)
-
-        system_usr = User.find(-1)
-
-        Community.all.each do |c|
-          RequestContext.community = c
-          post = Post.find_by(doc_slug: seed['doc_slug'])
-
-          if post.present? && should_update_posts && not_edited?(post)
-            # post exists, still original version: update post
-            post.update(seed.merge('community_id' => c.id))
-
-            no_initial = PostHistory.where(post: post)
-                       .where(post_history_type: PostHistoryType.find_by(name: 'initial_revision'))
-                       .count.zero?
-
-            if no_initial
-              puts "[#{c.name}:#{seed['doc_slug']}] missing initial revision, creating..."
-              PostHistory.initial_revision(post, system_usr)
-            end
-
-            updated += 1
-          elsif post.nil?
-            # post doesn't exist: create post
-            status = Post.create seed.merge('community_id' => c.id, 'user' => system_usr)
-
-            if status.errors.any?
-              status.errors.full_messages.each do |msg|
-                puts "[#{c.name}:#{seed['doc_slug']}] invalid: #{msg}"
-              end
-
-              errored += 1
-            else
-              created += 1
-            end
-          else
-            # post exists, versions diverged: skip
-            skipped += 1
-          end
-        end
-      else
-        new_created, new_skipped = create_objects(type, seed)
-        created += new_created
-        skipped += new_skipped
-
-        if type == CommunityUser
-          ensure_system_user_abilities
-        end
-      end
+# @param user [User] user to assign changes to
+# @param community [Community] community to create the post on
+# @param seed [Hash] initialized seed
+# @return [Stats] operation stats
+def create_post(user, community, seed)
+  stats = SeedsHelper::Stats.new(0, 0, 0, 0)
+  created = Post.create seed.merge('community_id' => community.id, 'user' => user)
+
+  if created.errors.any?
+    created.errors.full_messages.each do |msg|
+      puts "[#{community.name}:#{seed['doc_slug']}] invalid: #{msg}"
+    end
+
+    stats.add_errored(1)
+  else
+    stats.add_created(1)
+  end
+
+  stats
+end
+
+# @param user [User] user to assign changes to
+# @param community [Community] community the post belongs to
+# @param post [Post] post to update
+# @param seed [Hash] initialized seed
+# @return [Stats] operation stats
+def update_post(user, community, post, seed)
+  stats = SeedsHelper::Stats.new(0, 0, 0, 0)
+  updated = post.update(seed.merge('community_id' => community.id))
+
+  if no_initial_revision?(post)
+    puts "[#{community.name}:#{seed['doc_slug']}] missing initial revision, creating..."
+    PostHistory.initial_revision(post, user)
+  end
+
+  if updated.errors.any?
+    updated.errors.full_messages.each do |msg|
+      puts "[#{community.name}:#{seed['doc_slug']}] invalid: #{msg}"
+    end
+
+    stats.add_errored(1)
+  else
+    stats.add_updated(1)
+  end
+
+  stats
+end
+
+# @return [Stats] operation stats
+def seed_objects(type, seed)
+  seeds = expand_communities(type, seed)
+  seeds = expand_ids(type, seeds)
+
+  # Actually create the objects and count successes
+  objs = type.create(seeds)
+
+  skipped = objs.select { |o| o.errors.any? }.size
+  created = objs.reject { |o| o.errors.any? }.size
+
+  # Post type cache must be manually cleared \
+  # (its mappings need it, but only the controller clears the cache on create)
+  if type == PostType
+    type.clear_ids_cache
+  end
+
+  if type == CommunityUser
+    ensure_system_user_abilities
+  end
+
+  SeedsHelper::Stats.new(created, 0, 0, skipped)
+end
+
+# @param seed [Hash] initialized seed
+# @param update_posts [Boolean] whether to update existing posts
+# @return [Stats] operation stats
+def seed_posts(seed, update_posts)
+  system_usr = User.find(-1)
+  stats = SeedsHelper::Stats.new(0, 0, 0, 0)
+
+  Community.all.each do |community|
+    RequestContext.community = community
+    post = Post.find_by(doc_slug: seed['doc_slug'])
+
+    if post.present? && update_posts && not_edited?(post)
+      stats << update_post(system_usr, community, post, seed)
+    elsif post.nil?
+      stats << create_post(system_usr, community, seed)
+    else
+      stats.add_skipped(1)
     end
-    unless Rails.env.test?
-      puts "#{type}: errored #{errored}, created #{created}, #{updated > 0 ? "updated #{updated}, " : ''}skipped #{skipped}"
+  end
+
+  stats
+end
+
+def seed_community_assets
+  Community.all.each do |community|
+    RequestContext.community = community
+    host = community.host.split('.')[0]
+
+    [:css, :js].each do |ext|
+      setting_name = "#{ext.to_s.upcase}Path"
+      asset_path = Rails.public_path.join('./assets/community', "#{host}.#{ext}")
+
+      if SiteSetting[setting_name].blank? && File.exist?(asset_path)
+        SiteSetting[setting_name] = "/assets/community/#{host}.#{ext}"
+      end
+    rescue => e
+      puts "[#{community.name}] failed to seed asset: #{e.message}"
     end
-  rescue StandardError => e
-    puts "Got error #{e}. Continuing..."
   end
 end
 
+sorted.each do |f, type|
+  processed = ERB.new(File.read(f)).result(binding)
+  data = YAML.load(processed)
+  stats = SeedsHelper::Stats.new(0, 0, 0, 0)
+  data.each do |seed|
+    init_seed(type, seed)
+
+    stats << if type == Post
+               seed_posts(seed, should_update_posts)
+             else
+               seed_objects(type, seed)
+             end
+  end
+  unless Rails.env.test?
+    puts "#{type}: #{stats.print}"
+  end
+rescue StandardError => e
+  puts "Got error #{e}. Continuing..."
+end
+
 Post.where(community_id: nil).destroy_all
+
+seed_community_assets
diff --git a/db/seeds/site_settings.yml b/db/seeds/site_settings.yml
index 919d6233f..7390b2c59 100644
--- a/db/seeds/site_settings.yml
+++ b/db/seeds/site_settings.yml
@@ -358,6 +358,22 @@
   description: >
     Path to a file to use as the site's favicon. Must be an .ICO file.
 
+- name: JSPath
+  value: ~
+  value_type: uri_path
+  category: SiteDetails
+  description: >
+    Path to a file containing site-specific JavaScript.
+    Must be a domain-relative URL (such as `/assets/community.js`).
+
+- name: CSSPath
+  value: ~
+  value_type: uri_path
+  category: SiteDetails
+  description: >
+    Path to a file containing site-specific CSS.
+    Must be a domain-relative URL (such as `/assets/community.css`).
+
 - name: AllowContentTransfer
   value: true
   value_type: boolean
diff --git a/lib/setting_converter.rb b/lib/setting_converter.rb
index bf87353b3..36d737633 100644
--- a/lib/setting_converter.rb
+++ b/lib/setting_converter.rb
@@ -30,4 +30,11 @@ def as_boolean
   def as_json
     JSON.parse(@value)
   end
+
+  def as_uri_path
+    normalized = @value.blank? || @value&.start_with?('/') ? @value : "/#{@value}"
+    URI.parse(normalized).path
+  rescue
+    nil
+  end
 end