diff --git a/Gemfile b/Gemfile
index 0de8faf1..3b85f197 100644
--- a/Gemfile
+++ b/Gemfile
@@ -6,7 +6,7 @@ ruby '>= 2.4.0', '< 2.7.0'
 gem 'pkg-config', '~> 1.3'
 
 gem 'puma', '~> 5.0'
-gem 'rails', '~> 5.2.3'
+gem 'rails', '6.0.3.4'
 gem 'thor', '~> 0.20'
 
 gem 'hamlit-rails', '~> 0.2'
@@ -59,7 +59,7 @@ gem 'kaminari', '~> 1.1'
 gem 'link_header', '~> 0.0'
 gem 'mime-types', '~> 3.2', require: 'mime/types/columnar'
 gem 'nokogiri', '~> 1.10'
-gem 'nsa', '~> 0.2'
+# gem 'nsa', '~> 0.2'
 gem 'oj', '~> 3.7'
 gem 'ostatus2', '~> 2.0'
 gem 'ox', '~> 2.10'
@@ -68,7 +68,7 @@ gem 'pundit', '~> 2.0'
 gem 'premailer-rails'
 gem 'rack-attack', '~> 6.0'
 gem 'rack-cors', '~> 1.0', require: 'rack/cors'
-gem 'rails-i18n', '~> 5.1'
+gem 'rails-i18n', '~> 6.0.0'
 gem 'rails-settings-cached', '~> 0.6'
 gem 'redis', '~> 4.2', require: ['redis', 'redis/connection/hiredis']
 gem 'mario-redis-lock', '~> 1.2', require: 'redis_lock'
@@ -127,6 +127,7 @@ group :development do
   gem 'better_errors', '~> 2.5'
   gem 'binding_of_caller', '~> 0.7'
   gem 'bullet', '~> 6.0'
+  gem 'listen'
   gem 'letter_opener', '~> 1.7'
   gem 'letter_opener_web', '~> 1.3'
   gem 'memory_profiler'
@@ -146,7 +147,6 @@ end
 
 group :production do
   gem 'lograge', '~> 0.11'
-  gem 'redis-rails', '~> 5.0'
 end
 
 gem 'concurrent-ruby', require: false
diff --git a/Gemfile.lock b/Gemfile.lock
index e8dff848..e61f0d49 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -15,53 +15,67 @@ GIT
 GEM
   remote: https://rubygems.org/
   specs:
-    actioncable (5.2.4.4)
-      actionpack (= 5.2.4.4)
+    actioncable (6.0.3.4)
+      actionpack (= 6.0.3.4)
       nio4r (~> 2.0)
       websocket-driver (>= 0.6.1)
-    actionmailer (5.2.4.4)
-      actionpack (= 5.2.4.4)
-      actionview (= 5.2.4.4)
-      activejob (= 5.2.4.4)
+    actionmailbox (6.0.3.4)
+      actionpack (= 6.0.3.4)
+      activejob (= 6.0.3.4)
+      activerecord (= 6.0.3.4)
+      activestorage (= 6.0.3.4)
+      activesupport (= 6.0.3.4)
+      mail (>= 2.7.1)
+    actionmailer (6.0.3.4)
+      actionpack (= 6.0.3.4)
+      actionview (= 6.0.3.4)
+      activejob (= 6.0.3.4)
       mail (~> 2.5, >= 2.5.4)
       rails-dom-testing (~> 2.0)
-    actionpack (5.2.4.4)
-      actionview (= 5.2.4.4)
-      activesupport (= 5.2.4.4)
+    actionpack (6.0.3.4)
+      actionview (= 6.0.3.4)
+      activesupport (= 6.0.3.4)
       rack (~> 2.0, >= 2.0.8)
       rack-test (>= 0.6.3)
       rails-dom-testing (~> 2.0)
-      rails-html-sanitizer (~> 1.0, >= 1.0.2)
-    actionview (5.2.4.4)
-      activesupport (= 5.2.4.4)
+      rails-html-sanitizer (~> 1.0, >= 1.2.0)
+    actiontext (6.0.3.4)
+      actionpack (= 6.0.3.4)
+      activerecord (= 6.0.3.4)
+      activestorage (= 6.0.3.4)
+      activesupport (= 6.0.3.4)
+      nokogiri (>= 1.8.5)
+    actionview (6.0.3.4)
+      activesupport (= 6.0.3.4)
       builder (~> 3.1)
       erubi (~> 1.4)
       rails-dom-testing (~> 2.0)
-      rails-html-sanitizer (~> 1.0, >= 1.0.3)
-    active_model_serializers (0.10.11)
-      actionpack (>= 4.1, < 6.1)
-      activemodel (>= 4.1, < 6.1)
+      rails-html-sanitizer (~> 1.1, >= 1.2.0)
+    active_model_serializers (0.10.12)
+      actionpack (>= 4.1, < 6.2)
+      activemodel (>= 4.1, < 6.2)
       case_transform (>= 0.2)
       jsonapi-renderer (>= 0.1.1.beta1, < 0.3)
     active_record_query_trace (1.8)
-    activejob (5.2.4.4)
-      activesupport (= 5.2.4.4)
+    activejob (6.0.3.4)
+      activesupport (= 6.0.3.4)
       globalid (>= 0.3.6)
-    activemodel (5.2.4.4)
-      activesupport (= 5.2.4.4)
-    activerecord (5.2.4.4)
-      activemodel (= 5.2.4.4)
-      activesupport (= 5.2.4.4)
-      arel (>= 9.0)
-    activestorage (5.2.4.4)
-      actionpack (= 5.2.4.4)
-      activerecord (= 5.2.4.4)
+    activemodel (6.0.3.4)
+      activesupport (= 6.0.3.4)
+    activerecord (6.0.3.4)
+      activemodel (= 6.0.3.4)
+      activesupport (= 6.0.3.4)
+    activestorage (6.0.3.4)
+      actionpack (= 6.0.3.4)
+      activejob (= 6.0.3.4)
+      activerecord (= 6.0.3.4)
       marcel (~> 0.3.1)
-    activesupport (5.2.4.4)
+    activesupport (6.0.3.4)
       concurrent-ruby (~> 1.0, >= 1.0.2)
       i18n (>= 0.7, < 2)
       minitest (~> 5.1)
       tzinfo (~> 1.1)
+      zeitwerk (~> 2.2, >= 2.2.2)
     addressable (2.7.0)
       public_suffix (>= 2.0.2, < 5.0)
     airbrussh (1.4.0)
@@ -69,23 +83,22 @@ GEM
     annotate (2.7.5)
       activerecord (>= 3.2, < 7.0)
       rake (>= 10.4, < 13.0)
-    arel (9.0.0)
     ast (2.4.1)
     attr_encrypted (3.1.0)
       encryptor (~> 3.0.0)
     av (0.9.0)
       cocaine (~> 0.5.3)
     aws-eventstream (1.1.0)
-    aws-partitions (1.404.0)
-    aws-sdk-core (3.110.0)
+    aws-partitions (1.418.0)
+    aws-sdk-core (3.111.2)
       aws-eventstream (~> 1, >= 1.0.2)
       aws-partitions (~> 1, >= 1.239.0)
       aws-sigv4 (~> 1.1)
       jmespath (~> 1.0)
-    aws-sdk-kms (1.39.0)
+    aws-sdk-kms (1.41.0)
       aws-sdk-core (~> 3, >= 3.109.0)
       aws-sigv4 (~> 1.1)
-    aws-sdk-s3 (1.86.0)
+    aws-sdk-s3 (1.87.0)
       aws-sdk-core (~> 3, >= 3.109.0)
       aws-sdk-kms (~> 1)
       aws-sigv4 (~> 1.1)
@@ -103,17 +116,17 @@ GEM
       ffi (~> 1.10.0)
     bootsnap (1.5.1)
       msgpack (~> 1.0)
-    brakeman (4.10.0)
-    browser (5.1.0)
+    brakeman (4.10.1)
+    browser (5.3.0)
     builder (3.2.4)
-    bullet (6.1.0)
+    bullet (6.1.3)
       activesupport (>= 3.0.0)
       uniform_notifier (~> 1.11)
     bundler-audit (0.7.0.1)
       bundler (>= 1.2.0, < 3)
       thor (>= 0.18, < 2)
     byebug (11.1.3)
-    capistrano (3.14.1)
+    capistrano (3.15.0)
       airbrussh (>= 1.0.0)
       i18n
       rake (>= 10.0.0)
@@ -143,26 +156,29 @@ GEM
       activesupport (>= 4.0)
       elasticsearch (>= 2.0.0)
       elasticsearch-dsl
-    chunky_png (1.3.14)
+    chunky_png (1.4.0)
     cld3 (3.2.6)
       ffi (>= 1.1.0, < 1.12.0)
     climate_control (0.2.0)
     cocaine (0.5.8)
       climate_control (>= 0.0.3, < 1.0)
     coderay (1.1.3)
-    concurrent-ruby (1.1.7)
+    concurrent-ruby (1.1.8)
     connection_pool (2.2.3)
-    crack (0.4.4)
+    crack (0.4.5)
+      rexml
     crass (1.0.6)
-    css_parser (1.7.1)
+    css_parser (1.8.0)
       addressable
-    debug_inspector (0.0.3)
-    derailed_benchmarks (1.8.1)
+    dead_end (1.1.3)
+    debug_inspector (1.0.0)
+    derailed_benchmarks (2.0.0)
       benchmark-ips (~> 2)
+      dead_end
       get_process_mem (~> 0)
       heapy (~> 0)
-      memory_profiler (~> 0)
-      mini_histogram (>= 0.2.1)
+      memory_profiler (>= 0, < 2)
+      mini_histogram (>= 0.3.0)
       rack (>= 1)
       rake (> 10, < 14)
       ruby-statistics (>= 2.1)
@@ -183,7 +199,7 @@ GEM
       devise (>= 4.0.0)
       rpam2 (~> 4.0)
     diff-lcs (1.4.4)
-    docile (1.3.2)
+    docile (1.3.5)
     domain_name (0.5.20190701)
       unf (>= 0.0.5, < 1.0.0)
     doorkeeper (5.4.0)
@@ -193,13 +209,13 @@ GEM
       dotenv (= 2.7.6)
       railties (>= 3.2)
     e2mmap (0.1.0)
-    elasticsearch (7.10.0)
-      elasticsearch-api (= 7.10.0)
-      elasticsearch-transport (= 7.10.0)
-    elasticsearch-api (7.10.0)
+    elasticsearch (7.10.1)
+      elasticsearch-api (= 7.10.1)
+      elasticsearch-transport (= 7.10.1)
+    elasticsearch-api (7.10.1)
       multi_json
     elasticsearch-dsl (0.1.9)
-    elasticsearch-transport (7.10.0)
+    elasticsearch-transport (7.10.1)
       faraday (~> 1)
       multi_json
     encryptor (3.0.0)
@@ -210,11 +226,13 @@ GEM
     fabrication (2.21.1)
     faker (1.9.6)
       i18n (>= 0.7)
-    faraday (1.1.0)
+    faraday (1.3.0)
+      faraday-net_http (~> 1.0)
       multipart-post (>= 1.2, < 3)
       ruby2_keywords
+    faraday-net_http (1.0.1)
     fast_blank (1.0.0)
-    fastimage (2.2.0)
+    fastimage (2.2.1)
     ffi (1.10.0)
     fog-core (2.1.0)
       builder
@@ -229,10 +247,10 @@ GEM
       fog-json (>= 1.0)
       ipaddress (>= 0.8)
     formatador (0.2.5)
-    fugit (1.4.1)
+    fugit (1.4.2)
       et-orbi (~> 1.1, >= 1.1.8)
       raabro (~> 1.4)
-    fuubar (2.5.0)
+    fuubar (2.5.1)
       rspec-core (~> 3.0)
       ruby-progressbar (~> 1.4)
     get_process_mem (0.2.7)
@@ -244,7 +262,7 @@ GEM
       http (~> 3.0)
       nokogiri (~> 1.8)
       oj (~> 3.0)
-    hamlit (2.13.0)
+    hamlit (2.14.2)
       temple (>= 0.8.2)
       thor
       tilt
@@ -275,9 +293,9 @@ GEM
     httplog (1.4.3)
       rack (>= 1.0)
       rainbow (>= 2.0.0)
-    i18n (1.8.5)
+    i18n (1.8.7)
       concurrent-ruby (~> 1.0)
-    i18n-tasks (0.9.31)
+    i18n-tasks (0.9.33)
       activesupport (>= 4.0.2)
       ast (>= 2.1.0)
       erubi
@@ -291,16 +309,16 @@ GEM
     ipaddress (0.8.3)
     iso-639 (0.3.5)
     jmespath (1.4.0)
-    json (2.3.1)
+    json (2.5.1)
     json-canonicalization (0.2.0)
-    json-ld (3.1.5)
+    json-ld (3.1.7)
       htmlentities (~> 4.3)
       json-canonicalization (~> 0.2)
       link_header (~> 0.0, >= 0.0.8)
       multi_json (~> 1.14)
       rack (~> 2.0)
       rdf (~> 3.1)
-    json-ld-preloaded (3.1.3)
+    json-ld-preloaded (3.1.4)
       json-ld (~> 3.1)
       rdf (~> 3.1)
     jsonapi-renderer (0.2.2)
@@ -326,23 +344,26 @@ GEM
       letter_opener (~> 1.0)
       railties (>= 3.2)
     link_header (0.0.8)
+    listen (3.4.1)
+      rb-fsevent (~> 0.10, >= 0.10.3)
+      rb-inotify (~> 0.9, >= 0.9.10)
     lograge (0.11.2)
       actionpack (>= 4)
       activesupport (>= 4)
       railties (>= 4)
       request_store (~> 1.0)
-    loofah (2.8.0)
+    loofah (2.9.0)
       crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
     mail (2.7.1)
       mini_mime (>= 0.1.1)
-    makara (0.4.1)
+    makara (0.5.0)
       activerecord (>= 3.0.0)
     marcel (0.3.3)
       mimemagic (~> 0.3.2)
     mario-redis-lock (1.2.1)
       redis (>= 3.0.5)
-    memory_profiler (0.9.14)
+    memory_profiler (1.0.0)
     method_source (1.0.0)
     microformats (4.2.1)
       json (~> 2.2)
@@ -353,8 +374,8 @@ GEM
     mimemagic (0.3.5)
     mini_histogram (0.3.1)
     mini_mime (1.0.2)
-    mini_portile2 (2.4.0)
-    minitest (5.14.2)
+    mini_portile2 (2.5.0)
+    minitest (5.14.3)
     msgpack (1.3.3)
     multi_json (1.15.0)
     multipart-post (2.1.1)
@@ -363,16 +384,12 @@ GEM
       net-ssh (>= 2.6.5, < 7.0.0)
     net-ssh (6.1.0)
     nio4r (2.5.4)
-    nokogiri (1.10.10)
-      mini_portile2 (~> 2.4.0)
+    nokogiri (1.11.1)
+      mini_portile2 (~> 2.5.0)
+      racc (~> 1.4)
     nokogumbo (2.0.4)
       nokogiri (~> 1.8, >= 1.8.4)
-    nsa (0.2.7)
-      activesupport (>= 4.2, < 6)
-      concurrent-ruby (~> 1.0, >= 1.0.2)
-      sidekiq (>= 3.5)
-      statsd-ruby (~> 1.4, >= 1.4.0)
-    oj (3.10.16)
+    oj (3.11.0)
     omniauth (1.9.1)
       hashie (>= 3.4.6)
       rack (>= 1.6.2, < 3)
@@ -388,7 +405,7 @@ GEM
       addressable (~> 2.5)
       http (~> 3.0)
       nokogiri (~> 1.8)
-    ox (2.13.4)
+    ox (2.14.1)
     paperclip (6.1.0)
       activemodel (>= 4.2.0)
       activesupport (>= 4.2.0)
@@ -401,7 +418,7 @@ GEM
     parallel (1.20.1)
     parallel_tests (2.32.0)
       parallel
-    parser (2.7.2.0)
+    parser (3.0.0.0)
       ast (~> 2.4.1)
     pastel (0.8.0)
       tty-color (~> 0.5)
@@ -426,11 +443,12 @@ GEM
     pry-rails (0.3.9)
       pry (>= 0.10.4)
     public_suffix (4.0.6)
-    puma (5.1.0)
+    puma (5.1.1)
       nio4r (~> 2.0)
     pundit (2.1.0)
       activesupport (>= 3.0.0)
     raabro (1.4.0)
+    racc (1.5.2)
     rack (2.2.3)
     rack-attack (6.3.1)
       rack (>= 1.0, < 3)
@@ -440,18 +458,20 @@ GEM
       rack
     rack-test (1.1.0)
       rack (>= 1.0, < 3)
-    rails (5.2.4.4)
-      actioncable (= 5.2.4.4)
-      actionmailer (= 5.2.4.4)
-      actionpack (= 5.2.4.4)
-      actionview (= 5.2.4.4)
-      activejob (= 5.2.4.4)
-      activemodel (= 5.2.4.4)
-      activerecord (= 5.2.4.4)
-      activestorage (= 5.2.4.4)
-      activesupport (= 5.2.4.4)
+    rails (6.0.3.4)
+      actioncable (= 6.0.3.4)
+      actionmailbox (= 6.0.3.4)
+      actionmailer (= 6.0.3.4)
+      actionpack (= 6.0.3.4)
+      actiontext (= 6.0.3.4)
+      actionview (= 6.0.3.4)
+      activejob (= 6.0.3.4)
+      activemodel (= 6.0.3.4)
+      activerecord (= 6.0.3.4)
+      activestorage (= 6.0.3.4)
+      activesupport (= 6.0.3.4)
       bundler (>= 1.3.0)
-      railties (= 5.2.4.4)
+      railties (= 6.0.3.4)
       sprockets-rails (>= 2.0.0)
     rails-controller-testing (1.0.5)
       actionpack (>= 5.0.1.rc1)
@@ -462,47 +482,31 @@ GEM
       nokogiri (>= 1.6)
     rails-html-sanitizer (1.3.0)
       loofah (~> 2.3)
-    rails-i18n (5.1.3)
+    rails-i18n (6.0.0)
       i18n (>= 0.7, < 2)
-      railties (>= 5.0, < 6)
+      railties (>= 6.0.0, < 7)
     rails-settings-cached (0.7.2)
       rails (>= 4.2.0)
-    railties (5.2.4.4)
-      actionpack (= 5.2.4.4)
-      activesupport (= 5.2.4.4)
+    railties (6.0.3.4)
+      actionpack (= 6.0.3.4)
+      activesupport (= 6.0.3.4)
       method_source
       rake (>= 0.8.7)
-      thor (>= 0.19.0, < 2.0)
+      thor (>= 0.20.3, < 2.0)
     rainbow (3.0.0)
     rake (12.3.3)
     rb-fsevent (0.10.4)
     rb-inotify (0.10.1)
       ffi (~> 1.0)
-    rdf (3.1.7)
+    rdf (3.1.9)
       hamster (~> 3.0)
       link_header (~> 0.0, >= 0.0.8)
     rdf-normalize (0.4.0)
       rdf (~> 3.1)
-    redcarpet (3.5.0)
+    redcarpet (3.5.1)
     redis (4.2.5)
-    redis-actionpack (5.2.0)
-      actionpack (>= 5, < 7)
-      redis-rack (>= 2.1.0, < 3)
-      redis-store (>= 1.1.0, < 2)
-    redis-activesupport (5.2.0)
-      activesupport (>= 3, < 7)
-      redis-store (>= 1.3, < 2)
     redis-namespace (1.8.0)
       redis (>= 3.0.4)
-    redis-rack (2.1.3)
-      rack (>= 2.0.8, < 3)
-      redis-store (>= 1.2, < 2)
-    redis-rails (5.0.2)
-      redis-actionpack (>= 5.0, < 6)
-      redis-activesupport (>= 5.0, < 6)
-      redis-store (>= 1.2, < 2)
-    redis-store (1.9.0)
-      redis (>= 4, < 5)
     regexp_parser (1.8.2)
     request_store (1.5.0)
       rack (>= 1.4)
@@ -543,16 +547,16 @@ GEM
       rubocop-ast (>= 0.6.0)
       ruby-progressbar (~> 1.7)
       unicode-display_width (>= 1.4.0, < 2.0)
-    rubocop-ast (1.3.0)
+    rubocop-ast (1.4.0)
       parser (>= 2.7.1.5)
-    ruby-progressbar (1.10.1)
+    ruby-progressbar (1.11.0)
     ruby-saml (1.11.0)
       nokogiri (>= 1.5.10)
     ruby-statistics (2.1.2)
-    ruby2_keywords (0.0.2)
-    rufus-scheduler (3.6.0)
+    ruby2_keywords (0.0.4)
+    rufus-scheduler (3.7.0)
       fugit (~> 1.1, >= 1.1.6)
-    sanitize (5.2.1)
+    sanitize (5.2.3)
       crass (~> 1.0.2)
       nokogiri (>= 1.8.0)
       nokogumbo (~> 2.0)
@@ -563,7 +567,7 @@ GEM
       rb-inotify (~> 0.9, >= 0.9.7)
     scss_lint (0.59.0)
       sass (~> 3.5, >= 3.5.5)
-    sidekiq (6.1.2)
+    sidekiq (6.1.3)
       connection_pool (>= 2.2.2)
       rack (~> 2.0)
       redis (>= 4.2.0)
@@ -585,7 +589,7 @@ GEM
     simple_form (4.1.0)
       actionpack (>= 5.0)
       activemodel (>= 5.0)
-    simplecov (0.20.0)
+    simplecov (0.21.2)
       docile (~> 1.1)
       simplecov-html (~> 0.11)
       simplecov_json_formatter (~> 0.1)
@@ -598,15 +602,14 @@ GEM
       actionpack (>= 4.0)
       activesupport (>= 4.0)
       sprockets (>= 3.0.0)
-    sshkit (1.21.1)
+    sshkit (1.21.2)
       net-scp (>= 1.1.2)
       net-ssh (>= 2.8.0)
     stackprof (0.2.16)
-    statsd-ruby (1.4.0)
     stoplight (2.1.3)
     streamio-ffmpeg (3.0.2)
       multi_json (~> 1.8)
-    strong_migrations (0.7.3)
+    strong_migrations (0.7.6)
       activerecord (>= 5)
     temple (0.8.2)
     terminal-table (2.0.0)
@@ -622,7 +625,7 @@ GEM
     tty-command (0.10.0)
       pastel (~> 0.8)
     tty-cursor (0.7.1)
-    tty-prompt (0.22.0)
+    tty-prompt (0.23.0)
       pastel (~> 0.8)
       tty-reader (~> 0.8)
     tty-reader (0.9.0)
@@ -632,18 +635,18 @@ GEM
     tty-screen (0.8.1)
     twitter-text (1.14.7)
       unf (~> 0.1.0)
-    tzinfo (1.2.8)
+    tzinfo (1.2.9)
       thread_safe (~> 0.1)
-    tzinfo-data (1.2020.4)
+    tzinfo-data (1.2020.6)
       tzinfo (>= 1.0.0)
     unf (0.1.4)
       unf_ext
     unf_ext (0.0.7.7)
     unicode-display_width (1.7.0)
-    uniform_notifier (1.13.0)
+    uniform_notifier (1.13.2)
     warden (1.2.9)
       rack (>= 2.0.9)
-    webmock (3.10.0)
+    webmock (3.11.1)
       addressable (>= 2.3.6)
       crack (>= 0.3.2)
       hashdiff (>= 0.4.0, < 2.0.0)
@@ -660,6 +663,7 @@ GEM
     wisper (2.0.1)
     xpath (3.2.0)
       nokogiri (~> 1.8)
+    zeitwerk (2.4.2)
 
 PLATFORMS
   ruby
@@ -718,6 +722,7 @@ DEPENDENCIES
   letter_opener (~> 1.7)
   letter_opener_web (~> 1.3)
   link_header (~> 0.0)
+  listen
   lograge (~> 0.11)
   makara (~> 0.4)
   mario-redis-lock (~> 1.2)
@@ -726,7 +731,6 @@ DEPENDENCIES
   mime-types (~> 3.2)
   net-ldap (~> 0.10)
   nokogiri (~> 1.10)
-  nsa (~> 0.2)
   oj (~> 3.7)
   omniauth (~> 1.9)
   omniauth-cas (~> 1.1)
@@ -748,15 +752,14 @@ DEPENDENCIES
   pundit (~> 2.0)
   rack-attack (~> 6.0)
   rack-cors (~> 1.0)
-  rails (~> 5.2.3)
+  rails (= 6.0.3.4)
   rails-controller-testing (~> 1.0)
-  rails-i18n (~> 5.1)
+  rails-i18n (~> 6.0.0)
   rails-settings-cached (~> 0.6)
   rdf-normalize (~> 0.3)
   redcarpet (~> 3.4)
   redis (~> 4.2)
   redis-namespace (~> 1.5)
-  redis-rails (~> 5.0)
   rqrcode (~> 0.10)
   rspec-rails (~> 3.8)
   rspec-sidekiq (~> 3.0)
diff --git a/app/controllers/application_controller.rb b/app/controllers/application_controller.rb
index f621bff5..f1e67e8e 100644
--- a/app/controllers/application_controller.rb
+++ b/app/controllers/application_controller.rb
@@ -5,8 +5,6 @@ class ApplicationController < ActionController::Base
   # For APIs, you may want to use :null_session instead.
   protect_from_forgery with: :exception
 
-  force_ssl if: :https_enabled?
-
   include Localized
   include UserTrackingConcern
   include SessionTrackingConcern
@@ -31,10 +29,6 @@ class ApplicationController < ActionController::Base
 
   private
 
-  def https_enabled?
-    Rails.env.production?
-  end
-
   def store_current_location
     store_location_for(:user, request.url) if request.format == :html
   end
diff --git a/app/controllers/settings/profiles_controller.rb b/app/controllers/settings/profiles_controller.rb
index 0624f4d5..9e1b3d18 100644
--- a/app/controllers/settings/profiles_controller.rb
+++ b/app/controllers/settings/profiles_controller.rb
@@ -25,7 +25,7 @@ class Settings::ProfilesController < Settings::BaseController
         AccountUsernameChange.create!(
           account: @account,
           from_username: @account.username,
-          to_username: params[:account][:username]
+          to_username: params[:account][:username] || ''
         )
       end
 
diff --git a/bin/setup b/bin/setup
index fc77b080..5853b5ea 100755
--- a/bin/setup
+++ b/bin/setup
@@ -1,6 +1,5 @@
 #!/usr/bin/env ruby
 require 'fileutils'
-include FileUtils
 
 # path to your application root.
 APP_ROOT = File.expand_path('..', __dir__)
@@ -9,22 +8,25 @@ def system!(*args)
   system(*args) || abort("\n== Command #{args} failed ==")
 end
 
-chdir APP_ROOT do
-  # This script is a starting point to setup your application.
+FileUtils.chdir APP_ROOT do
+  # This script is a way to setup or update your development environment automatically.
+  # This script is idempotent, so that you can run it at anytime and get an expectable outcome.
   # Add necessary setup steps to this file.
 
   puts '== Installing dependencies =='
   system! 'gem install bundler --conservative'
   system('bundle check') || system!('bundle install')
-  system!('yarn install')
+
+  # Install JavaScript dependencies
+  # system('bin/yarn')
 
   # puts "\n== Copying sample files =="
   # unless File.exist?('config/database.yml')
-  #   cp 'config/database.yml.sample', 'config/database.yml'
+  #   FileUtils.cp 'config/database.yml.sample', 'config/database.yml'
   # end
 
   puts "\n== Preparing database =="
-  system! 'bin/rails db:setup'
+  system! 'bin/rails db:prepare'
 
   puts "\n== Removing old logs and tempfiles =="
   system! 'bin/rails log:clear tmp:clear'
diff --git a/config/cable.yml b/config/cable.yml
new file mode 100644
index 00000000..7163e4c2
--- /dev/null
+++ b/config/cable.yml
@@ -0,0 +1,10 @@
+development:
+  adapter: async
+
+test:
+  adapter: test
+
+production:
+  adapter: redis
+  url: <%= ENV.fetch("REDIS_URL") { "redis://localhost:6379/1" } %>
+  channel_prefix: gab_social_production
diff --git a/config/environments/development.rb b/config/environments/development.rb
index 0791b82a..2e09fee7 100644
--- a/config/environments/development.rb
+++ b/config/environments/development.rb
@@ -17,7 +17,7 @@ Rails.application.configure do
   if Rails.root.join('tmp/caching-dev.txt').exist?
     config.action_controller.perform_caching = true
 
-    config.cache_store = :redis_store, ENV['REDIS_URL'], REDIS_CACHE_PARAMS
+    config.cache_store = :redis_cache_store, REDIS_CACHE_PARAMS.merge(url: ENV['REDIS_URL'])
 
     config.public_file_server.headers = {
       'Cache-Control' => "public, max-age=#{2.days.to_i}",
@@ -38,6 +38,9 @@ Rails.application.configure do
   config.x.vapid_private_key = vapid_key.private_key
   config.x.vapid_public_key = vapid_key.public_key
 
+  # Store uploaded files on the local file system (see config/storage.yml for options).
+  config.active_storage.service = :local
+
   # Don't care if the mailer can't send.
   config.action_mailer.raise_delivery_errors = false
 
@@ -49,6 +52,9 @@ Rails.application.configure do
   # Raise an error on page load if there are pending migrations.
   config.active_record.migration_error = :page_load
 
+  # Highlight code that triggered database queries in logs.
+  config.active_record.verbose_query_logs = true
+
   # Debug mode disables concatenation and preprocessing of assets.
   # This option may cause significant delays in view rendering with a large
   # number of complex assets.
@@ -76,6 +82,8 @@ Rails.application.configure do
   # Otherwise, use letter_opener, which launches a browser window to view sent mail.
   config.action_mailer.delivery_method = (ENV['HEROKU'] || ENV['VAGRANT'] || ENV['REMOTE_DEV']) ? :letter_opener_web : :letter_opener
 
+  config.file_watcher = ActiveSupport::EventedFileUpdateChecker
+
   config.after_initialize do
     Bullet.enable        = true
     Bullet.bullet_logger = true
diff --git a/config/environments/production.rb b/config/environments/production.rb
index a692578b..071543bd 100644
--- a/config/environments/production.rb
+++ b/config/environments/production.rb
@@ -41,9 +41,20 @@ Rails.application.configure do
   # config.action_dispatch.x_sendfile_header = 'X-Sendfile' # for Apache
   config.action_dispatch.x_sendfile_header = 'X-Accel-Redirect' # for NGINX
 
+  # Store uploaded files on the local file system (see config/storage.yml for options).
+  config.active_storage.service = :local
+
   # Allow to specify public IP of reverse proxy if it's needed
   config.action_dispatch.trusted_proxies = ENV['TRUSTED_PROXY_IP'].split.map { |item| IPAddr.new(item) } if ENV['TRUSTED_PROXY_IP'].present?
 
+  # Mount Action Cable outside main process or domain.
+  # config.action_cable.mount_path = nil
+  # config.action_cable.url = 'wss://example.com/cable'
+  # config.action_cable.allowed_request_origins = [ 'http://example.com', /http:\/\/example.*/ ]
+
+  # Force all access to the app over SSL, use Strict-Transport-Security, and use secure cookies.
+  config.force_ssl = true
+
   # Use the lowest log level to ensure availability of diagnostic information
   # when problems arise.
   config.log_level = ENV.fetch('RAILS_LOG_LEVEL', 'info').to_sym
@@ -52,7 +63,7 @@ Rails.application.configure do
   config.log_tags = [:request_id]
 
   # Use a different cache store in production.
-  config.cache_store = :redis_store, ENV['CACHE_REDIS_URL'], REDIS_CACHE_PARAMS
+  config.cache_store = :redis_cache_store, REDIS_CACHE_PARAMS.merge(url: ENV['CACHE_REDIS_URL'])
 
   # Ignore bad email addresses and do not raise email delivery errors.
   # Set this to true and configure the email server for immediate delivery to raise delivery errors.
@@ -102,4 +113,25 @@ Rails.application.configure do
   }
 
   config.x.otp_secret = ENV.fetch('OTP_SECRET')
+
+  # Inserts middleware to perform automatic connection switching.
+  # The `database_selector` hash is used to pass options to the DatabaseSelector
+  # middleware. The `delay` is used to determine how long to wait after a write
+  # to send a subsequent read to the primary.
+  #
+  # The `database_resolver` class is used by the middleware to determine which
+  # database is appropriate to use based on the time delay.
+  #
+  # The `database_resolver_context` class is used by the middleware to set
+  # timestamps for the last write to the primary. The resolver uses the context
+  # class timestamps to determine how long to wait before reading from the
+  # replica.
+  #
+  # By default Rails will store a last write timestamp in the session. The
+  # DatabaseSelector middleware is designed as such you can define your own
+  # strategy for connection switching and pass that into the middleware through
+  # these configuration options.
+  # config.active_record.database_selector = { delay: 2.seconds }
+  # config.active_record.database_resolver = ActiveRecord::Middleware::DatabaseSelector::Resolver
+  # config.active_record.database_resolver_context = ActiveRecord::Middleware::DatabaseSelector::Resolver::Session
 end
diff --git a/config/environments/test.rb b/config/environments/test.rb
index a35cadcf..6f591d93 100644
--- a/config/environments/test.rb
+++ b/config/environments/test.rb
@@ -27,6 +27,9 @@ Rails.application.configure do
   # and should not be used.
   config.cache_store = :memory_store
 
+  # Store uploaded files on the local file system in a temporary directory.
+  config.active_storage.service = :test
+
   # Raise exceptions instead of rendering exception templates.
   config.action_dispatch.show_exceptions = false
 
diff --git a/config/initializers/new_framework_defaults_6_0.rb b/config/initializers/new_framework_defaults_6_0.rb
new file mode 100644
index 00000000..d45195a0
--- /dev/null
+++ b/config/initializers/new_framework_defaults_6_0.rb
@@ -0,0 +1,53 @@
+# Be sure to restart your server when you modify this file.
+#
+# This file contains migration options to ease your Rails 6.0 upgrade.
+#
+# Once upgraded flip defaults one by one to migrate to the new default.
+#
+# Read the Guide for Upgrading Ruby on Rails for more info on each option.
+
+# Don't force requests from old versions of IE to be UTF-8 encoded.
+Rails.application.config.action_view.default_enforce_utf8 = false
+
+# Embed purpose and expiry metadata inside signed and encrypted
+# cookies for increased security.
+#
+# This option is not backwards compatible with earlier Rails versions.
+# It's best enabled when your entire app is migrated and stable on 6.0.
+# Rails.application.config.action_dispatch.use_cookies_with_metadata = true
+
+# Change the return value of `ActionDispatch::Response#content_type` to Content-Type header without modification.
+# Rails.application.config.action_dispatch.return_only_media_type_on_content_type = false
+
+# Return false instead of self when enqueuing is aborted from a callback.
+Rails.application.config.active_job.return_false_on_aborted_enqueue = true
+
+# Send Active Storage analysis and purge jobs to dedicated queues.
+Rails.application.config.active_storage.queues.analysis = :active_storage_analysis
+Rails.application.config.active_storage.queues.purge    = :active_storage_purge
+
+# When assigning to a collection of attachments declared via `has_many_attached`, replace existing
+# attachments instead of appending. Use #attach to add new attachments without replacing existing ones.
+Rails.application.config.active_storage.replace_on_assign_to_many = true
+
+# Use ActionMailer::MailDeliveryJob for sending parameterized and normal mail.
+#
+# The default delivery jobs (ActionMailer::Parameterized::DeliveryJob, ActionMailer::DeliveryJob),
+# will be removed in Rails 6.1. This setting is not backwards compatible with earlier Rails versions.
+# If you send mail in the background, job workers need to have a copy of
+# MailDeliveryJob to ensure all delivery jobs are processed properly.
+# Make sure your entire app is migrated and stable on 6.0 before using this setting.
+Rails.application.config.action_mailer.delivery_job = "ActionMailer::MailDeliveryJob"
+
+# Enable the same cache key to be reused when the object being cached of type
+# `ActiveRecord::Relation` changes by moving the volatile information (max updated at and count)
+# of the relation's cache key into the cache version to support recycling cache key.
+Rails.application.config.active_record.collection_cache_versioning = true
+
+
+# The Rails 6 default autoloader is Zeitwerk. Zeitwerk has specific expectations on where certain
+# classes should be defined. It also requires that constants are not autoloaded in initializers.
+# Enabling Zeitwerk would be good, but it'll take some work. Using the :classic autoloader gives
+# us the same autoloading that Rails 5.2 had.
+# Rails.application.config.autoloader = :zeitwerk
+Rails.application.config.autoloader = :classic
diff --git a/config/initializers/statsd.rb b/config/initializers/statsd.rb
index 17f23956..52a0b1f6 100644
--- a/config/initializers/statsd.rb
+++ b/config/initializers/statsd.rb
@@ -1,6 +1,6 @@
 # frozen_string_literal: true
 
-if ENV['STATSD_ADDR'].present?
+if false && ENV['STATSD_ADDR'].present?
   host, port = ENV['STATSD_ADDR'].split(':')
 
   statsd = ::Statsd.new(host, port)
diff --git a/config/puma.rb b/config/puma.rb
index 1afdb1c6..e941ae13 100644
--- a/config/puma.rb
+++ b/config/puma.rb
@@ -12,10 +12,4 @@ workers     ENV.fetch('WEB_CONCURRENCY') { 2 }
 
 preload_app!
 
-on_worker_boot do
-  ActiveSupport.on_load(:active_record) do
-    ActiveRecord::Base.establish_connection
-  end
-end
-
 plugin :tmp_restart
diff --git a/config/storage.yml b/config/storage.yml
new file mode 100644
index 00000000..d32f76e8
--- /dev/null
+++ b/config/storage.yml
@@ -0,0 +1,34 @@
+test:
+  service: Disk
+  root: <%= Rails.root.join("tmp/storage") %>
+
+local:
+  service: Disk
+  root: <%= Rails.root.join("storage") %>
+
+# Use rails credentials:edit to set the AWS secrets (as aws:access_key_id|secret_access_key)
+# amazon:
+#   service: S3
+#   access_key_id: <%= Rails.application.credentials.dig(:aws, :access_key_id) %>
+#   secret_access_key: <%= Rails.application.credentials.dig(:aws, :secret_access_key) %>
+#   region: us-east-1
+#   bucket: your_own_bucket
+
+# Remember not to checkin your GCS keyfile to a repository
+# google:
+#   service: GCS
+#   project: your_project
+#   credentials: <%= Rails.root.join("path/to/gcs.keyfile") %>
+#   bucket: your_own_bucket
+
+# Use rails credentials:edit to set the Azure Storage secret (as azure_storage:storage_access_key)
+# microsoft:
+#   service: AzureStorage
+#   storage_account_name: your_account_name
+#   storage_access_key: <%= Rails.application.credentials.dig(:azure_storage, :storage_access_key) %>
+#   container: your_container_name
+
+# mirror:
+#   service: Mirror
+#   primary: local
+#   mirrors: [ amazon, google, microsoft ]
diff --git a/db/migrate/20210123050026_add_foreign_key_constraint_to_active_storage_attachments_for_blob_id.active_storage.rb b/db/migrate/20210123050026_add_foreign_key_constraint_to_active_storage_attachments_for_blob_id.active_storage.rb
new file mode 100644
index 00000000..ff5d72c7
--- /dev/null
+++ b/db/migrate/20210123050026_add_foreign_key_constraint_to_active_storage_attachments_for_blob_id.active_storage.rb
@@ -0,0 +1,10 @@
+# This migration comes from active_storage (originally 20180723000244)
+class AddForeignKeyConstraintToActiveStorageAttachmentsForBlobId < ActiveRecord::Migration[6.0]
+  def up
+    return if foreign_key_exists?(:active_storage_attachments, column: :blob_id)
+
+    if table_exists?(:active_storage_blobs)
+      add_foreign_key :active_storage_attachments, :active_storage_blobs, column: :blob_id
+    end
+  end
+end
diff --git a/db/schema.rb b/db/schema.rb
index 32e23867..d5769f47 100644
--- a/db/schema.rb
+++ b/db/schema.rb
@@ -2,15 +2,15 @@
 # of editing this file, please use the migrations feature of Active Record to
 # incrementally modify your database, and then regenerate this schema definition.
 #
-# Note that this schema.rb definition is the authoritative source for your
-# database schema. If you need to create the application database on another
-# system, you should be using db:schema:load, not running all the migrations
-# from scratch. The latter is a flawed and unsustainable approach (the more migrations
-# you'll amass, the slower it'll run and the greater likelihood for issues).
+# This file is the source Rails uses to define your schema when running `rails
+# db:schema:load`. When creating a new database, `rails db:schema:load` tends to
+# be faster and is potentially less error prone than running all of your
+# migrations from scratch. Old migrations may fail to apply correctly if those
+# migrations use external dependencies or application code.
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 2021_01_17_210100) do
+ActiveRecord::Schema.define(version: 2021_01_23_050026) do
 
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"