diff --git a/app/channels/public_channel.rb b/app/channels/public_channel.rb
index 578cdc001b..708eff0556 100644
--- a/app/channels/public_channel.rb
+++ b/app/channels/public_channel.rb
@@ -1,7 +1,7 @@
 # Be sure to restart your server when you modify this file. Action Cable runs in a loop that does not support auto reloading.
 class PublicChannel < ApplicationCable::Channel
   def subscribed
-    stream_from 'timeline:public', lambda do |encoded_message|
+    stream_from 'timeline:public', lambda { |encoded_message|
       message = ActiveSupport::JSON.decode(encoded_message)
 
       status = Status.find_by(id: message['id'])
@@ -10,7 +10,7 @@ class PublicChannel < ApplicationCable::Channel
       message['message'] = FeedManager.instance.inline_render(current_user.account, status)
 
       transmit message
-    end
+    }
   end
 
   def unsubscribed
diff --git a/app/models/follow_suggestion.rb b/app/models/follow_suggestion.rb
index 22084612f6..cfb0887d5c 100644
--- a/app/models/follow_suggestion.rb
+++ b/app/models/follow_suggestion.rb
@@ -1,8 +1,9 @@
 class FollowSuggestion
-  def self.get(for_account_id, limit = 10)
-    neo = Neography::Rest.new
+  class << self
+    def get(for_account_id, limit = 10)
+      neo = Neography::Rest.new
 
-    query = <<END
+      query = <<END
 START a=node:account_index(Account={id})
 MATCH (a)-[:follows]->(b)-[:follows]->(c)
 WHERE a <> c
@@ -12,30 +13,30 @@ ORDER BY count(b) DESC, c.nodeRank DESC
 LIMIT {limit}
 END
 
-    results = neo.execute_query(query, id: for_account_id, limit: limit)
+      results = neo.execute_query(query, id: for_account_id, limit: limit)
 
-    if results.empty? || results['data'].empty?
-      results = fallback(for_account_id, limit)
-    elsif results['data'].size < limit
-      results['data'] = (results['data'] + fallback(for_account_id, limit - results['data'].size)['data']).uniq
-    end
+      if results.empty? || results['data'].empty?
+        results = fallback(for_account_id, limit)
+      elsif results['data'].size < limit
+        results['data'] = (results['data'] + fallback(for_account_id, limit - results['data'].size)['data']).uniq
+      end
 
-    account_ids  = results['data'].map(&:first)
-    blocked_ids  = Block.where(account_id: for_account_id).pluck(:target_account_id)
-    accounts_map = Account.where(id: account_ids - blocked_ids).with_counters.map { |a| [a.id, a] }.to_h
+      account_ids  = results['data'].map(&:first)
+      blocked_ids  = Block.where(account_id: for_account_id).pluck(:target_account_id)
+      accounts_map = Account.where(id: account_ids - blocked_ids).with_counters.map { |a| [a.id, a] }.to_h
 
-    account_ids.map { |id| accounts_map[id] }.compact
-  rescue Neography::NeographyError, Excon::Error::Socket => e
-    Rails.logger.error e
-    return []
-  end
+      account_ids.map { |id| accounts_map[id] }.compact
+    rescue Neography::NeographyError, Excon::Error::Socket => e
+      Rails.logger.error e
+      return []
+    end
 
-  private
+    private
 
-  def self.fallback(for_account_id, limit)
-    neo = Neography::Rest.new
+    def fallback(for_account_id, limit)
+      neo = Neography::Rest.new
 
-    query = <<END
+      query = <<END
 START a=node:account_index(Account={id})
 MATCH (b)
 WHERE a <> b
@@ -45,6 +46,7 @@ ORDER BY b.nodeRank DESC
 LIMIT {limit}
 END
 
-    neo.execute_query(query, id: for_account_id, limit: limit)
+      neo.execute_query(query, id: for_account_id, limit: limit)
+    end
   end
 end
diff --git a/app/models/media_attachment.rb b/app/models/media_attachment.rb
index 008147a08e..55eabc2260 100644
--- a/app/models/media_attachment.rb
+++ b/app/models/media_attachment.rb
@@ -34,26 +34,28 @@ class MediaAttachment < ApplicationRecord
     image? ? 'image' : 'video'
   end
 
-  private
-
-  def self.file_styles(f)
-    if f.instance.image?
-      {
-        original: '100%',
-        small: '510x680>'
-      }
-    else
-      {
-        small: {
-          convert_options: {
-            output: {
-              vf: 'scale=\'min(510\, iw):min(680\, ih)\':force_original_aspect_ratio=decrease'
-            }
-          },
-          format: 'png',
-          time: 1
+  class << self
+    private
+
+    def file_styles(f)
+      if f.instance.image?
+        {
+          original: '100%',
+          small: '510x680>'
         }
-      }
+      else
+        {
+          small: {
+            convert_options: {
+              output: {
+                vf: 'scale=\'min(510\, iw):min(680\, ih)\':force_original_aspect_ratio=decrease'
+              }
+            },
+            format: 'png',
+            time: 1
+          }
+        }
+      end
     end
   end
 end
diff --git a/app/services/block_domain_service.rb b/app/services/block_domain_service.rb
index ac658a050e..93987af29b 100644
--- a/app/services/block_domain_service.rb
+++ b/app/services/block_domain_service.rb
@@ -1,6 +1,6 @@
 class BlockDomainService < BaseService
   def call(domain)
-    block = DomainBlock.find_or_create_by!(domain: domain)
+    DomainBlock.find_or_create_by!(domain: domain)
 
     Account.where(domain: domain).find_each do |account|
       if account.subscribed?
diff --git a/app/services/fetch_remote_account_service.rb b/app/services/fetch_remote_account_service.rb
index 7977f5cba9..7a65236b69 100644
--- a/app/services/fetch_remote_account_service.rb
+++ b/app/services/fetch_remote_account_service.rb
@@ -19,7 +19,7 @@ class FetchRemoteAccountService < BaseService
     Rails.logger.debug "Going to webfinger #{username}@#{domain}"
 
     return FollowRemoteAccountService.new.call("#{username}@#{domain}")
-  rescue TypeError => e
+  rescue TypeError
     Rails.logger.debug "Unparseable URL given: #{url}"
     nil
   rescue Nokogiri::XML::XPath::SyntaxError