diff --git a/.ruby-version b/.ruby-version
index 84d6c676..4f5e6973 100644
--- a/.ruby-version
+++ b/.ruby-version
@@ -1 +1 @@
-3.4.10
+3.4.5
diff --git a/Dockerfile.production b/Dockerfile.production
index f52ea3b3..8192c8f0 100644
--- a/Dockerfile.production
+++ b/Dockerfile.production
@@ -1,28 +1,20 @@
 FROM registry.opensuse.org/opensuse/infrastructure/dale/containers/osem/base:latest
 
-EXPOSE 5000
-
 ENV RAILS_ENV=production
-ENV RAILS_SERVE_STATIC_FILES=true
 
 # Add our files
 COPY --chown=1000:1000 . /osem/
 
-# Install foreman
-RUN gem install foreman
+# Install bundler & foreman
+RUN gem install bundler -v "$(grep -A 1 "BUNDLED WITH" /osem/Gemfile.lock | tail -n 1)"; \
+    gem install foreman
 
 USER osem
 WORKDIR /osem/
 
-RUN rm -rf /osem/public/system/sponsors; mkdir -p /osem/public/system/sponsors; \
-    rm -rf /osem/public/assets; mkdir -p /osem/public/assets; \
-    rm -rf /osem/log; mkdir -p /osem/public/assets
-
 # Install our bundle
-RUN bundle config set --local without 'test development'; \
-    bundle config set --local path 'vendor/bundle'; \
-    bundle config build.nokogiri --use-system-libraries; \
-    bundle install --jobs=4 --retry=3
+RUN bundle config set --local without 'test development'
+RUN bundle install --jobs=3 --retry=3
 
 # Generate assets
 RUN bundle exec rake assets:precompile
diff --git a/Gemfile b/Gemfile
index 9458f1be..35ba4235 100644
--- a/Gemfile
+++ b/Gemfile
@@ -183,8 +183,6 @@ gem 'sprockets-rails'
 # for multiple speakers select on proposal/event forms
 gem 'selectize-rails'
 
-# Pin to solve https://github.com/mperham/connection_pool/issues/212
-gem "connection_pool", "< 3"
 # memcached binary connector
 gem 'dalli'
 
@@ -195,7 +193,7 @@ gem 'icalendar'
 gem 'lograge'
 
 group :development do
-  # for static code analysis
+  # for static code analisys
   gem 'rubocop', require: false
   gem 'rubocop-rspec', require: false
   gem 'rubocop-rails', require: false
diff --git a/Gemfile.lock b/Gemfile.lock
index ffcc1a31..5039887b 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -2,73 +2,71 @@ GEM
   remote: https://rubygems.org/
   specs:
     Ascii85 (2.0.1)
-    actioncable (7.2.3)
-      actionpack (= 7.2.3)
-      activesupport (= 7.2.3)
+    actioncable (7.2.2.1)
+      actionpack (= 7.2.2.1)
+      activesupport (= 7.2.2.1)
       nio4r (~> 2.0)
       websocket-driver (>= 0.6.1)
       zeitwerk (~> 2.6)
-    actionmailbox (7.2.3)
-      actionpack (= 7.2.3)
-      activejob (= 7.2.3)
-      activerecord (= 7.2.3)
-      activestorage (= 7.2.3)
-      activesupport (= 7.2.3)
+    actionmailbox (7.2.2.1)
+      actionpack (= 7.2.2.1)
+      activejob (= 7.2.2.1)
+      activerecord (= 7.2.2.1)
+      activestorage (= 7.2.2.1)
+      activesupport (= 7.2.2.1)
       mail (>= 2.8.0)
-    actionmailer (7.2.3)
-      actionpack (= 7.2.3)
-      actionview (= 7.2.3)
-      activejob (= 7.2.3)
-      activesupport (= 7.2.3)
+    actionmailer (7.2.2.1)
+      actionpack (= 7.2.2.1)
+      actionview (= 7.2.2.1)
+      activejob (= 7.2.2.1)
+      activesupport (= 7.2.2.1)
       mail (>= 2.8.0)
       rails-dom-testing (~> 2.2)
-    actionpack (7.2.3)
-      actionview (= 7.2.3)
-      activesupport (= 7.2.3)
-      cgi
+    actionpack (7.2.2.1)
+      actionview (= 7.2.2.1)
+      activesupport (= 7.2.2.1)
       nokogiri (>= 1.8.5)
       racc
-      rack (>= 2.2.4, < 3.3)
+      rack (>= 2.2.4, < 3.2)
       rack-session (>= 1.0.1)
       rack-test (>= 0.6.3)
       rails-dom-testing (~> 2.2)
       rails-html-sanitizer (~> 1.6)
       useragent (~> 0.16)
-    actiontext (7.2.3)
-      actionpack (= 7.2.3)
-      activerecord (= 7.2.3)
-      activestorage (= 7.2.3)
-      activesupport (= 7.2.3)
+    actiontext (7.2.2.1)
+      actionpack (= 7.2.2.1)
+      activerecord (= 7.2.2.1)
+      activestorage (= 7.2.2.1)
+      activesupport (= 7.2.2.1)
       globalid (>= 0.6.0)
       nokogiri (>= 1.8.5)
-    actionview (7.2.3)
-      activesupport (= 7.2.3)
+    actionview (7.2.2.1)
+      activesupport (= 7.2.2.1)
       builder (~> 3.1)
-      cgi
       erubi (~> 1.11)
       rails-dom-testing (~> 2.2)
       rails-html-sanitizer (~> 1.6)
-    active_model_serializers (0.10.16)
+    active_model_serializers (0.10.15)
       actionpack (>= 4.1)
       activemodel (>= 4.1)
       case_transform (>= 0.2)
       jsonapi-renderer (>= 0.1.1.beta1, < 0.3)
-    activejob (7.2.3)
-      activesupport (= 7.2.3)
+    activejob (7.2.2.1)
+      activesupport (= 7.2.2.1)
       globalid (>= 0.3.6)
-    activemodel (7.2.3)
-      activesupport (= 7.2.3)
-    activerecord (7.2.3)
-      activemodel (= 7.2.3)
-      activesupport (= 7.2.3)
+    activemodel (7.2.2.1)
+      activesupport (= 7.2.2.1)
+    activerecord (7.2.2.1)
+      activemodel (= 7.2.2.1)
+      activesupport (= 7.2.2.1)
       timeout (>= 0.4.0)
-    activestorage (7.2.3)
-      actionpack (= 7.2.3)
-      activejob (= 7.2.3)
-      activerecord (= 7.2.3)
-      activesupport (= 7.2.3)
+    activestorage (7.2.2.1)
+      actionpack (= 7.2.2.1)
+      activejob (= 7.2.2.1)
+      activerecord (= 7.2.2.1)
+      activesupport (= 7.2.2.1)
       marcel (~> 1.0)
-    activesupport (7.2.3)
+    activesupport (7.2.2.1)
       base64
       benchmark (>= 0.3)
       bigdecimal
@@ -84,37 +82,32 @@ GEM
       activerecord (>= 3.0)
       activesupport (>= 3.0)
       awesome_nested_set (>= 2.0)
-    acts_as_list (1.2.6)
-      activerecord (>= 6.1)
-      activesupport (>= 6.1)
-    addressable (2.9.0)
-      public_suffix (>= 2.0.2, < 8.0)
-    afm (1.0.0)
+    acts_as_list (1.0.4)
+      activerecord (>= 4.2)
+    addressable (2.8.7)
+      public_suffix (>= 2.0.2, < 7.0)
+    afm (0.2.2)
     ajax-datatables-rails (1.3.1)
       zeitwerk
-    anonymous_loader (0.1.3)
-      version_gem (~> 1.1, >= 1.1.14)
-    archive-zip (0.13.1)
-      io-like (~> 0.4.0)
+    archive-zip (0.12.0)
+      io-like (~> 0.3.0)
     ast (2.4.3)
-    auth-sanitizer (0.2.3)
-      version_gem (~> 1.1, >= 1.1.14)
     autoprefixer-rails (10.3.1.0)
       execjs (~> 2)
     awesome_nested_set (3.8.0)
       activerecord (>= 4.0.0, < 8.1)
     base64 (0.3.0)
-    bcrypt (3.1.22)
-    benchmark (0.5.0)
-    bigdecimal (3.3.1)
+    bcrypt (3.1.20)
+    benchmark (0.4.1)
+    bigdecimal (3.2.2)
     bindex (0.8.1)
     bootstrap-sass (3.4.1)
       autoprefixer-rails (>= 5.2.1)
       sassc (>= 2.0.0)
     bootstrap-switch-rails (3.3.3)
     builder (3.3.0)
-    byebug (12.0.0)
-    cancancan (3.6.1)
+    byebug (11.1.3)
+    cancancan (3.3.0)
     capybara (3.40.0)
       addressable
       matrix
@@ -124,7 +117,7 @@ GEM
       rack-test (>= 0.6.3)
       regexp_parser (>= 1.5, < 3.0)
       xpath (~> 3.2)
-    carrierwave (3.1.3)
+    carrierwave (3.1.2)
       activemodel (>= 6.0.0)
       activesupport (>= 6.0.0)
       addressable (~> 2.6)
@@ -137,16 +130,15 @@ GEM
       fastimage
     case_transform (0.2)
       activesupport
-    caxlsx (4.3.0)
+    caxlsx (4.2.0)
       htmlentities (~> 4.3, >= 4.3.4)
       marcel (~> 1.0)
       nokogiri (~> 1.10, >= 1.10.4)
-      rubyzip (>= 2.4, < 4)
+      rubyzip (>= 1.3.0, < 3)
     caxlsx_rails (0.6.2)
       actionpack (>= 3.1)
       caxlsx (>= 3.0)
-    cgi (0.5.1)
-    chartkick (5.2.1)
+    chartkick (4.1.3)
     childprocess (5.1.0)
       logger (~> 1.5)
     chronic (0.10.2)
@@ -158,13 +150,13 @@ GEM
       faraday-multipart (~> 1.0, >= 1.0.4)
       ostruct
     cocoon (1.2.15)
-    concurrent-ruby (1.3.7)
-    connection_pool (2.5.5)
+    concurrent-ruby (1.3.5)
+    connection_pool (2.5.3)
     countable-rails (0.0.1)
       railties (>= 3.1)
     crack (0.4.5)
       rexml
-    crass (1.0.7)
+    crass (1.0.6)
     csv (3.3.5)
     daemons (1.4.0)
     dalli (2.7.11)
@@ -175,40 +167,39 @@ GEM
       activerecord (>= 5.a)
       database_cleaner-core (~> 2.0)
     database_cleaner-core (2.0.1)
-    date (3.5.1)
-    delayed_job (4.2.0)
+    date (3.4.1)
+    delayed_job (4.1.13)
       activesupport (>= 3.0, < 9.0)
-      benchmark
-      logger
     delayed_job_active_record (4.1.11)
       activerecord (>= 3.0, < 9.0)
       delayed_job (>= 3.0, < 5)
-    devise (5.0.4)
+    devise (4.9.4)
       bcrypt (~> 3.0)
       orm_adapter (~> 0.1)
-      railties (>= 7.0)
+      railties (>= 4.1.0)
       responders
       warden (~> 1.2.3)
     devise_ichain_authenticatable (0.3.2)
       devise (>= 2.2)
     diff-lcs (1.6.2)
     docile (1.4.1)
-    dotenv (3.2.0)
-    dotenv-rails (3.2.0)
-      dotenv (= 3.2.0)
+    dotenv (3.1.8)
+    dotenv-rails (3.1.8)
+      dotenv (= 3.1.8)
       railties (>= 6.1)
     drb (2.2.3)
-    erb (6.0.6)
+    erb (5.0.2)
     erubi (1.13.1)
+    erubis (2.7.0)
     execjs (2.8.1)
-    factory_bot (6.5.6)
+    factory_bot (6.5.4)
       activesupport (>= 6.1.0)
-    factory_bot_rails (6.5.1)
+    factory_bot_rails (6.5.0)
       factory_bot (~> 6.5)
       railties (>= 6.1.0)
     faker (3.5.2)
       i18n (>= 1.8.11, < 2)
-    faraday (2.14.3)
+    faraday (2.13.4)
       faraday-net_http (>= 2.0, < 3.5)
       json
       logger
@@ -216,42 +207,46 @@ GEM
       faraday (>= 1, < 3)
     faraday-multipart (1.1.1)
       multipart-post (~> 2.0)
-    faraday-net_http (3.4.4)
-      net-http (~> 0.5)
-    fastimage (2.4.1)
+    faraday-net_http (3.4.1)
+      net-http (>= 0.5.0)
+    fastimage (2.4.0)
     feature (1.4.0)
-    ffi (1.17.4)
+    ffi (1.17.2)
     font-awesome-sass (6.7.2)
       sassc (~> 2.0)
     geckodriver-helper (0.24.0)
       archive-zip (~> 0.7)
-    globalid (1.3.0)
+    globalid (1.2.1)
       activesupport (>= 6.1)
     gravtastic (3.2.6)
-    haml (6.3.0)
-      temple (>= 0.8.2)
-      thor
+    haml (5.2.2)
+      temple (>= 0.8.0)
       tilt
-    haml-rails (2.1.0)
+    haml-rails (2.0.1)
       actionpack (>= 5.1)
       activesupport (>= 5.1)
-      haml (>= 4.0.6)
+      haml (>= 4.0.6, < 6.0)
+      html2haml (>= 1.0.1)
       railties (>= 5.1)
-    haml_lint (0.66.0)
-      haml (>= 5.0)
+    haml_lint (0.37.1)
+      haml (>= 4.0, < 5.3)
       parallel (~> 1.10)
       rainbow
-      rubocop (>= 1.0)
+      rubocop (>= 0.50.0)
       sysexits (~> 1.1)
-    hashdiff (1.2.1)
+    hashdiff (1.0.1)
     hashery (2.1.2)
-    hashie (5.1.0)
-      logger
-    htmlentities (4.4.2)
-    i18n (1.14.8)
+    hashie (5.0.0)
+    html2haml (2.2.0)
+      erubis (~> 2.7.0)
+      haml (>= 4.0, < 6)
+      nokogiri (>= 1.6.0)
+      ruby_parser (~> 3.5)
+    htmlentities (4.3.4)
+    i18n (1.14.7)
       concurrent-ruby (~> 1.0)
     i18n_data (0.13.0)
-    icalendar (2.12.4)
+    icalendar (2.11.2)
       base64
       ice_cube (~> 0.16)
       logger
@@ -260,11 +255,10 @@ GEM
     image_processing (1.14.0)
       mini_magick (>= 4.9.5, < 6)
       ruby-vips (>= 2.0.17, < 3)
-    io-console (0.8.2)
-    io-like (0.4.0)
-    irb (1.18.0)
+    io-console (0.8.1)
+    io-like (0.3.1)
+    irb (1.15.2)
       pp (>= 0.6.0)
-      prism (>= 1.3.0)
       rdoc (>= 4.0.0)
       reline (>= 0.4.2)
     iso-639 (0.3.8)
@@ -274,20 +268,19 @@ GEM
       jquery-rails
       railties (>= 3.1)
       sass-rails
-    jquery-rails (4.6.1)
+    jquery-rails (4.4.0)
       rails-dom-testing (>= 1, < 3)
       railties (>= 4.2.0)
       thor (>= 0.14, < 2.0)
     jquery-ui-rails (6.0.1)
       railties (>= 3.2.16)
-    json (2.21.2)
-    json-schema (6.0.0)
-      addressable (~> 2.8)
-      bigdecimal (~> 3.1)
+    json (2.13.2)
+    json-schema (2.8.1)
+      addressable (>= 2.4)
     jsonapi-renderer (0.2.2)
-    jwt (3.2.0)
+    jwt (3.1.2)
       base64
-    language_server-protocol (3.17.0.6)
+    language_server-protocol (3.17.0.5)
     launchy (3.1.1)
       addressable (~> 2.8)
       childprocess (~> 5.0)
@@ -309,26 +302,24 @@ GEM
       activesupport (>= 4)
       railties (>= 4)
       request_store (~> 1.0)
-    loofah (2.25.2)
+    loofah (2.24.1)
       crass (~> 1.0.2)
       nokogiri (>= 1.12.0)
-    mail (2.9.1)
-      logger
+    mail (2.8.1)
       mini_mime (>= 0.1.1)
       net-imap
       net-pop
       net-smtp
     marcel (1.0.4)
-    matrix (0.4.3)
-    mina (1.2.5)
+    matrix (0.4.2)
+    mina (1.2.4)
+      open4 (~> 1.3.4)
       rake
-    mini_magick (5.3.2)
+    mini_magick (5.3.0)
       logger
     mini_mime (1.1.5)
     mini_portile2 (2.8.9)
-    minitest (6.0.6)
-      drb (~> 2.0)
-      prism (~> 1.5)
+    minitest (5.25.5)
     monetize (1.9.4)
       money (~> 6.12)
     money (6.13.8)
@@ -339,12 +330,12 @@ GEM
       money (~> 6.13.2)
       railties (>= 3.0)
     multi_json (1.17.0)
-    multi_xml (0.9.1)
-      bigdecimal (>= 3.1, < 5)
+    multi_xml (0.7.2)
+      bigdecimal (~> 3.1)
     multipart-post (2.4.1)
-    net-http (0.9.1)
-      uri (>= 0.11.1)
-    net-imap (0.6.6)
+    net-http (0.6.0)
+      uri
+    net-imap (0.5.9)
       date
       net-protocol
     net-pop (0.1.2)
@@ -353,25 +344,22 @@ GEM
       timeout
     net-smtp (0.5.1)
       net-protocol
-    next_rails (1.4.8)
+    next_rails (1.4.6)
       rainbow (>= 3)
-    nio4r (2.7.5)
-    nokogiri (1.19.4)
+    nio4r (2.7.4)
+    nokogiri (1.18.9)
       mini_portile2 (~> 2.8.2)
       racc (~> 1.4)
-    oauth2 (2.0.25)
-      anonymous_loader (~> 0.1, >= 0.1.3)
-      auth-sanitizer (~> 0.2, >= 0.2.3)
+    oauth2 (2.0.12)
       faraday (>= 0.17.3, < 4.0)
       jwt (>= 1.0, < 4.0)
       logger (~> 1.2)
       multi_xml (~> 0.5)
       rack (>= 1.2, < 4)
-      snaky_hash (~> 2.0, >= 2.0.7)
-      version_gem (~> 1.1, >= 1.1.14)
-    omniauth (2.1.4)
+      snaky_hash (~> 2.0, >= 2.0.3)
+      version_gem (>= 1.1.8, < 3)
+    omniauth (2.1.3)
       hashie (>= 3.4.6)
-      logger
       rack (>= 2.2.3)
       rack-protection
     omniauth-facebook (8.0.0)
@@ -379,13 +367,13 @@ GEM
     omniauth-github (2.0.1)
       omniauth (~> 2.0)
       omniauth-oauth2 (~> 1.8)
-    omniauth-google-oauth2 (1.2.2)
+    omniauth-google-oauth2 (1.2.1)
       jwt (>= 2.9.2)
       oauth2 (~> 2.0)
       omniauth (~> 2.0)
       omniauth-oauth2 (~> 1.8)
-    omniauth-oauth2 (1.9.0)
-      oauth2 (>= 2.0.2, < 3)
+    omniauth-oauth2 (1.8.0)
+      oauth2 (>= 1.4, < 3)
       omniauth (~> 2.0)
     omniauth-openid (2.0.2)
       omniauth (>= 1.1)
@@ -395,26 +383,27 @@ GEM
     omniauth-rails_csrf_protection (1.0.0)
       actionpack (>= 4.2)
       omniauth (~> 2.0)
+    open4 (1.3.4)
     orm_adapter (0.5.0)
     ostruct (0.6.3)
     paper_trail (16.0.0)
       activerecord (>= 6.1)
       request_store (~> 1.4)
     parallel (1.27.0)
-    parser (3.3.12.0)
+    parser (3.3.9.0)
       ast (~> 2.4.1)
       racc
     pdf-core (0.10.0)
     pdf-inspector (1.3.0)
       pdf-reader (>= 1.0, < 3.0.a)
-    pdf-reader (2.15.1)
+    pdf-reader (2.14.1)
       Ascii85 (>= 1.0, < 3.0, != 2.0.0)
-      afm (>= 0.2.1, < 2)
+      afm (~> 0.2.1)
       hashery (~> 2.0)
       ruby-rc4
       ttfunk
-    pg (1.6.3)
-    pp (0.6.3)
+    pg (1.6.1)
+    pp (0.6.2)
       prettyprint
     prawn (2.5.0)
       matrix (~> 0.4)
@@ -431,43 +420,43 @@ GEM
     prawn-table (0.2.2)
       prawn (>= 1.3.0, < 3.0.0)
     prettyprint (0.2.0)
-    prism (1.9.0)
-    psych (5.3.1)
+    prism (1.4.0)
+    psych (5.2.6)
       date
       stringio
-    public_suffix (7.0.5)
-    puma (8.0.2)
+    public_suffix (6.0.2)
+    puma (6.6.1)
       nio4r (~> 2.0)
     racc (1.8.1)
-    rack (3.2.6)
+    rack (3.1.16)
     rack-openid (1.4.2)
       rack (>= 1.1.0)
       ruby-openid (>= 2.1.8)
-    rack-protection (4.2.1)
+    rack-protection (4.1.1)
       base64 (>= 0.1.0)
       logger (>= 1.6.0)
       rack (>= 3.0.0, < 4)
-    rack-session (2.1.2)
+    rack-session (2.1.1)
       base64 (>= 0.1.0)
       rack (>= 3.0.0)
     rack-test (2.2.0)
       rack (>= 1.3)
-    rackup (2.3.1)
+    rackup (2.2.1)
       rack (>= 3)
-    rails (7.2.3)
-      actioncable (= 7.2.3)
-      actionmailbox (= 7.2.3)
-      actionmailer (= 7.2.3)
-      actionpack (= 7.2.3)
-      actiontext (= 7.2.3)
-      actionview (= 7.2.3)
-      activejob (= 7.2.3)
-      activemodel (= 7.2.3)
-      activerecord (= 7.2.3)
-      activestorage (= 7.2.3)
-      activesupport (= 7.2.3)
+    rails (7.2.2.1)
+      actioncable (= 7.2.2.1)
+      actionmailbox (= 7.2.2.1)
+      actionmailer (= 7.2.2.1)
+      actionpack (= 7.2.2.1)
+      actiontext (= 7.2.2.1)
+      actionview (= 7.2.2.1)
+      activejob (= 7.2.2.1)
+      activemodel (= 7.2.2.1)
+      activerecord (= 7.2.2.1)
+      activestorage (= 7.2.2.1)
+      activesupport (= 7.2.2.1)
       bundler (>= 1.15.0)
-      railties (= 7.2.3)
+      railties (= 7.2.2.1)
     rails-controller-testing (1.0.5)
       actionpack (>= 5.0.1.rc1)
       actionview (>= 5.0.1.rc1)
@@ -476,65 +465,63 @@ GEM
       activesupport (>= 5.0.0)
       minitest
       nokogiri (>= 1.6)
-    rails-html-sanitizer (1.7.1)
-      loofah (~> 2.25, >= 2.25.2)
+    rails-html-sanitizer (1.6.2)
+      loofah (~> 2.21)
       nokogiri (>= 1.15.7, != 1.16.7, != 1.16.6, != 1.16.5, != 1.16.4, != 1.16.3, != 1.16.2, != 1.16.1, != 1.16.0.rc1, != 1.16.0)
     rails-i18n (7.0.1)
       i18n (>= 0.7, < 2)
       railties (>= 6.0.0, < 8)
-    railties (7.2.3)
-      actionpack (= 7.2.3)
-      activesupport (= 7.2.3)
-      cgi
+    railties (7.2.2.1)
+      actionpack (= 7.2.2.1)
+      activesupport (= 7.2.2.1)
       irb (~> 1.13)
       rackup (>= 1.0.0)
       rake (>= 12.2)
       thor (~> 1.0, >= 1.2.2)
-      tsort (>= 0.2)
       zeitwerk (~> 2.6)
     rainbow (3.1.1)
-    rake (13.4.2)
-    rdoc (7.2.0)
+    rake (13.3.0)
+    rdoc (6.14.2)
       erb
       psych (>= 4.0.0)
-      tsort
-    recaptcha (5.21.2)
+    recaptcha (5.8.1)
+      json
     redcarpet (3.6.1)
-    regexp_parser (2.11.3)
-    reline (0.6.3)
+    regexp_parser (2.11.1)
+    reline (0.6.2)
       io-console (~> 0.5)
     request_store (1.7.0)
       rack (>= 1.4)
-    responders (3.2.0)
-      actionpack (>= 7.0)
-      railties (>= 7.0)
-    rexml (3.4.4)
+    responders (3.1.1)
+      actionpack (>= 5.2)
+      railties (>= 5.2)
+    rexml (3.4.1)
     rolify (6.0.0)
-    rqrcode (3.1.0)
+    rqrcode (2.0.0)
       chunky_png (~> 1.0)
-      rqrcode_core (~> 2.0)
-    rqrcode_core (2.0.0)
-    rspec-activemodel-mocks (1.3.0)
+      rqrcode_core (~> 1.0)
+    rqrcode_core (1.1.0)
+    rspec-activemodel-mocks (1.1.0)
       activemodel (>= 3.0)
       activesupport (>= 3.0)
       rspec-mocks (>= 2.99, < 4.0)
-    rspec-core (3.13.6)
+    rspec-core (3.13.5)
       rspec-support (~> 3.13.0)
     rspec-expectations (3.13.5)
       diff-lcs (>= 1.2.0, < 2.0)
       rspec-support (~> 3.13.0)
-    rspec-mocks (3.13.8)
+    rspec-mocks (3.13.5)
       diff-lcs (>= 1.2.0, < 2.0)
       rspec-support (~> 3.13.0)
-    rspec-rails (8.0.4)
+    rspec-rails (8.0.2)
       actionpack (>= 7.2)
       activesupport (>= 7.2)
       railties (>= 7.2)
-      rspec-core (>= 3.13.0, < 5.0.0)
-      rspec-expectations (>= 3.13.0, < 5.0.0)
-      rspec-mocks (>= 3.13.0, < 5.0.0)
-      rspec-support (>= 3.13.0, < 5.0.0)
-    rspec-support (3.13.7)
+      rspec-core (~> 3.13)
+      rspec-expectations (~> 3.13)
+      rspec-mocks (~> 3.13)
+      rspec-support (~> 3.13)
+    rspec-support (3.13.4)
     rubocop (1.79.2)
       json (~> 2.3)
       language_server-protocol (~> 3.17.0.2)
@@ -559,7 +546,7 @@ GEM
       lint_roller (~> 1.1)
       rubocop (>= 1.75.0, < 2.0)
       rubocop-ast (>= 1.38.0, < 2.0)
-    rubocop-rails (2.33.3)
+    rubocop-rails (2.33.1)
       activesupport (>= 4.2.0)
       lint_roller (~> 1.1)
       rack (>= 1.1)
@@ -576,9 +563,11 @@ GEM
     ruby-openid (2.9.2)
     ruby-progressbar (1.13.0)
     ruby-rc4 (0.1.5)
-    ruby-vips (2.3.0)
+    ruby-vips (2.2.4)
       ffi (~> 1.12)
       logger
+    ruby_parser (3.17.0)
+      sexp_processor (~> 4.15, >= 4.15.1)
     rubyzip (2.4.1)
     sass-rails (6.0.0)
       sassc-rails (~> 2.1, >= 2.1.1)
@@ -602,20 +591,21 @@ GEM
     sentry-ruby (5.26.0)
       bigdecimal
       concurrent-ruby (~> 1.0, >= 1.0.2)
+    sexp_processor (4.15.3)
     shoulda-matchers (6.5.0)
       activesupport (>= 5.2.0)
     simplecov (0.22.0)
       docile (~> 1.1)
       simplecov-html (~> 0.11)
       simplecov_json_formatter (~> 0.1)
-    simplecov-cobertura (3.1.0)
+    simplecov-cobertura (3.0.0)
       rexml
       simplecov (~> 0.19)
     simplecov-html (0.13.2)
     simplecov_json_formatter (0.1.4)
-    snaky_hash (2.0.7)
+    snaky_hash (2.0.3)
       hashie (>= 0.1.0, < 6)
-      version_gem (~> 1.1, >= 1.1.14)
+      version_gem (>= 1.1.8, < 3)
     sprockets (4.2.2)
       concurrent-ruby (~> 1.0)
       logger
@@ -624,8 +614,8 @@ GEM
       actionpack (>= 4.0)
       activesupport (>= 4.0)
       sprockets (>= 3.0.0)
-    ssrf_filter (1.5.0)
-    stringio (3.2.0)
+    ssrf_filter (1.3.0)
+    stringio (3.1.7)
     stripe (5.43.0)
     stripe-ruby-mock (3.1.0.rc3)
       dante (>= 0.2.0)
@@ -633,12 +623,11 @@ GEM
       stripe (> 5, < 6)
     sysexits (1.2.0)
     temple (0.10.4)
-    thor (1.5.0)
-    tilt (2.6.1)
+    thor (1.4.0)
+    tilt (2.0.10)
     timecop (0.9.4)
-    timeout (0.6.1)
+    timeout (0.4.3)
     transitions (1.2.1)
-    tsort (0.2.0)
     ttfunk (1.8.0)
       bigdecimal (~> 3.1)
     turbolinks (5.2.1)
@@ -648,14 +637,14 @@ GEM
       concurrent-ruby (~> 1.0)
     uglifier (4.2.0)
       execjs (>= 0.3.0, < 3)
-    unicode-display_width (3.2.0)
-      unicode-emoji (~> 4.1)
-    unicode-emoji (4.2.0)
+    unicode-display_width (3.1.4)
+      unicode-emoji (~> 4.0, >= 4.0.4)
+    unicode-emoji (4.0.4)
     unobtrusive_flash (3.3.1)
       railties
-    uri (1.1.1)
+    uri (1.0.3)
     useragent (0.16.11)
-    version_gem (1.1.14)
+    version_gem (1.1.8)
     warden (1.2.9)
       rack (>= 2.0.9)
     web-console (4.1.0)
@@ -672,7 +661,7 @@ GEM
       crack (>= 0.3.2)
       hashdiff (>= 0.4.0, < 2.0.0)
     websocket (1.2.11)
-    websocket-driver (0.8.2)
+    websocket-driver (0.8.0)
       base64
       websocket-extensions (>= 0.1.0)
     websocket-extensions (0.1.5)
@@ -680,7 +669,7 @@ GEM
       chronic (>= 0.6.3)
     xpath (3.2.0)
       nokogiri (~> 1.8)
-    zeitwerk (2.7.5)
+    zeitwerk (2.7.3)
 
 PLATFORMS
   ruby
@@ -704,7 +693,6 @@ DEPENDENCIES
   climate_control
   cloudinary
   cocoon
-  connection_pool (< 3)
   countable-rails
   daemons
   dalli
@@ -787,7 +775,7 @@ DEPENDENCIES
   whenever
 
 RUBY VERSION
-   ruby 3.4.10
+   ruby 3.4.5
 
 BUNDLED WITH
    2.6.9
diff --git a/Gemfile.next b/Gemfile.next
deleted file mode 100644
index 6ab79009..00000000
--- a/Gemfile.next
+++ /dev/null
@@ -1 +0,0 @@
-Gemfile
\ No newline at end of file
diff --git a/Gemfile.next b/Gemfile.next
new file mode 120000
index 00000000..6ab79009
--- /dev/null
+++ b/Gemfile.next
@@ -0,0 +1 @@
+Gemfile
\ No newline at end of file
diff --git a/INSTALL.md b/INSTALL.md
index ef118842..629f756a 100644
--- a/INSTALL.md
+++ b/INSTALL.md
@@ -26,22 +26,21 @@ You can find the latest OSEM releases on our [release page](https://github.com/o
 
 ## Deploy to the cloud
 
-The easiest way to deploy OSEM is to use one of the many platform as a service (PaaS) providers that support Ruby on Rails.
-There are too many to list, here are a few we have seen OSEM deployed to:
+The easiest way to deploy OSEM is to use one of the many platform as a service providers that support ruby on rails. We have prepared OSEM to be used with [heroku](https://heroku.com). So if you have an account there, you can deploy OSEM by pressing this button:
 
-- https://heroku.com
-- https://render.com
-- https://fly.io
+<a href="https://heroku.com/deploy?template=https://github.com/openSUSE/osem/tree/v1.0">
+  <img src="https://www.herokucdn.com/deploy/button.svg" alt="Deploy">
+</a>
 
 ## Deploy to your own server
 
 We recommend to run OSEM in production with [mod\_passenger](https://www.phusionpassenger.com/download/#open_source)
 and the [apache web-server](https://www.apache.org/). There are tons of guides on how to deploy rails apps on various
-base operating systems, [check DuckDuckGo](https://duckduckgo.com/?t=h_&q=ruby+on+rails+apache+passenger). Of course there are also other options for the application server and reverse proxy, pick your poison.
+base operating systems. [Check Google](https://encrypted.google.com/search?hl=en&q=ruby%20on%20rails%20apache%20passenger). Of course there are also other options for the application server and reverse proxy, pick your poison.
 
 ## Deploy via docker/docker-compose
 
-There is a rudimentary docker-compose configuration for production usage (`docker-compose.yml.production-example`). It brings OSEM up on port 80. It uses persistent storage volumes for all the data your users might create. You can start it with
+There is a rudimentary docker-compose configuration for production usage (`docker-compose.yml.production-example`). It brings [OSEM up](http://0.0.0.0:8080) on port 8080. It uses persistent storage volumes for all the data users might create. You can start it with
 
 1. Configure OSEM (at least `SECRET_KEY_BASE`)
    ```
@@ -54,13 +53,12 @@ There is a rudimentary docker-compose configuration for production usage (`docke
    ```
 1. Setup the database (only once)
    ```
-   docker-compose -f docker-compose.yml.production-example run --rm osem bundle exec rake db:setup
+   docker-compose -f docker-compose.yml.production-example run --rm production_web bundle exec rake db:bootstrap
    ```
 1. Start the services
    ```
    docker-compose -f docker-compose.yml.production-example up
    ```
-1. Visit http://0.0.0.0
 
 ## Configuration
 OSEM is configured through environment variables and falls back to sensible defaults. See the [dotenv.example](https://github.com/openSUSE/osem/blob/master/dotenv.example) for all possible configuration options. However here is a list of things you most likely want to configure because otherwise things will not work as expected.
diff --git a/README.md b/README.md
index edf460d6..69b58e21 100644
--- a/README.md
+++ b/README.md
@@ -8,10 +8,6 @@
 
 An event management tool tailored to Free and Open Source Software conferences.
 
-## Trial
-
-Check out our demo at https://osem.copyleft.dev
-
 ## Installation
 Please refer to our [installation guide](INSTALL.md).
 
@@ -19,7 +15,4 @@ Please refer to our [installation guide](INSTALL.md).
 Please refer to our [contributing guide](CONTRIBUTING.md).
 
 ## Contact
-GitHub issues are the primary way for communicating about specific proposed changes to this project. If you have other questions feel free chat us up in the #osem channel on [libera.chat IRC](https://libera.chat).
-
-https://web.libera.chat/#osem
-
+GitHub issues are the primary way for communicating about specific proposed changes to this project. If you have other questions feel free to subscribe to the [opensuse-web@opensuse.org](http://lists.opensuse.org/opensuse-web/) mailinglist, all OSEM contributors are on that list! Additionally you can use #osem channel on [libera.chat IRC](https://libera.chat).
diff --git a/app.json b/app.json
new file mode 100644
index 00000000..b1af6d6b
--- /dev/null
+++ b/app.json
@@ -0,0 +1,37 @@
+{
+  "name": "osem",
+  "description": "Open Source Event Manager",
+  "repository": "https://github.com/openSUSE/osem",
+  "env": {
+    "CLOUDINARY_URL": {
+      "description": "Create a https://cloudinary.com account and set the cloud url here. It starts with cloudinary://",
+      "required": false
+    },
+    "SECRET_KEY_BASE": {
+      "description": "A key to verify sessions. At least 40 characters. For instance: https://www.randomlists.com/string?base=16&length=64&qty=1",
+      "generator": "secret"
+    },
+    "NOKOGIRI_USE_SYSTEM_LIBRARIES": "1",
+    "RAILS_ENV": "production",
+    "RACK_ENV": "production"
+  },
+  "scripts": {
+    "postdeploy": "bundle exec rake db:schema:load db:seed"
+  },
+  "formation": {
+    "web": {
+      "quantity": 1
+    },
+    "worker": {
+      "quantity": 1
+    }
+  },
+  "addons": [
+    {
+      "plan": "heroku-postgresql"
+    },
+    {
+      "plan": "sendgrid"
+    }
+  ]
+}
diff --git a/app/controllers/admin/booths_controller.rb b/app/controllers/admin/booths_controller.rb
index 0d235b98..0a899921 100644
--- a/app/controllers/admin/booths_controller.rb
+++ b/app/controllers/admin/booths_controller.rb
@@ -130,7 +130,8 @@ module Admin
     end
 
     def booth_params
-      params.require(:booth).permit(:title, :description, :reasoning, :picture, :website_url, :submitter_relationship, responsible_ids: [])
+      params.require(:booth).permit(:title, :description, :reasoning, :state, :picture, :conference_id,
+                                    :created_at, :updated_at, :submitter_relationship, :website_url, responsible_ids: [])
     end
   end
 end
diff --git a/app/controllers/admin/difficulty_levels_controller.rb b/app/controllers/admin/difficulty_levels_controller.rb
index 0453542c..e5717f7e 100644
--- a/app/controllers/admin/difficulty_levels_controller.rb
+++ b/app/controllers/admin/difficulty_levels_controller.rb
@@ -51,7 +51,7 @@ module Admin
     private
 
     def difficulty_level_params
-      params.require(:difficulty_level).permit(:title, :description, :color)
+      params.require(:difficulty_level).permit(:title, :description, :color, :conference_id)
     end
   end
 end
diff --git a/app/controllers/admin/event_types_controller.rb b/app/controllers/admin/event_types_controller.rb
index 81f3f1f8..a171b427 100644
--- a/app/controllers/admin/event_types_controller.rb
+++ b/app/controllers/admin/event_types_controller.rb
@@ -49,7 +49,7 @@ module Admin
     private
 
     def event_type_params
-      params.require(:event_type).permit(:title, :length, :minimum_abstract_length, :maximum_abstract_length, :color, :description)
+      params.require(:event_type).permit(:title, :length, :minimum_abstract_length, :maximum_abstract_length, :color, :conference_id, :description)
     end
   end
 end
diff --git a/app/controllers/admin/events_controller.rb b/app/controllers/admin/events_controller.rb
index 6f3227ef..27b19112 100644
--- a/app/controllers/admin/events_controller.rb
+++ b/app/controllers/admin/events_controller.rb
@@ -178,7 +178,7 @@ module Admin
     end
 
     def comment_params
-      params.require(:comment).permit(:body)
+      params.require(:comment).permit(:commentable, :body, :user_id)
     end
 
     def update_state(transition, notice, mail = false, subject = false, send_mail = false)
diff --git a/app/controllers/admin/lodgings_controller.rb b/app/controllers/admin/lodgings_controller.rb
index 56fc55d4..639e0544 100644
--- a/app/controllers/admin/lodgings_controller.rb
+++ b/app/controllers/admin/lodgings_controller.rb
@@ -49,7 +49,7 @@ module Admin
     private
 
     def lodging_params
-      params.require(:lodging).permit(:name, :description, :picture, :picture_cache, :website_link)
+      params.require(:lodging).permit(:name, :description, :picture, :picture_cache, :website_link, :conference_id)
     end
   end
 end
diff --git a/app/controllers/admin/programs_controller.rb b/app/controllers/admin/programs_controller.rb
index d94b65f9..d47d4d1d 100644
--- a/app/controllers/admin/programs_controller.rb
+++ b/app/controllers/admin/programs_controller.rb
@@ -11,7 +11,7 @@ module Admin
 
     def update
       authorize! :update, @conference.program
-
+      @program = @conference.program
       params['program']['languages'] = params['program']['languages'].join(',') if params['program']['languages'].present?
       @program.assign_attributes(program_params)
       send_mail_on_schedule_public = @program.notify_on_schedule_public?
diff --git a/app/controllers/admin/questions_controller.rb b/app/controllers/admin/questions_controller.rb
index 6ebf67f5..b6451c92 100644
--- a/app/controllers/admin/questions_controller.rb
+++ b/app/controllers/admin/questions_controller.rb
@@ -97,7 +97,7 @@ module Admin
     private
 
     def question_params
-      params.require(:question).permit(:title, :global, :answer_ids, :question_type_id, answers_attributes: [:id, :title])
+      params.require(:question).permit(:title, :global, :answer_ids, :question_type_id, :conference_id, answers_attributes: [:id, :title])
     end
 
     def conference_params
diff --git a/app/controllers/admin/registrations_controller.rb b/app/controllers/admin/registrations_controller.rb
index b36ab05c..88027bbd 100644
--- a/app/controllers/admin/registrations_controller.rb
+++ b/app/controllers/admin/registrations_controller.rb
@@ -82,7 +82,8 @@ module Admin
 
     def registration_params
       params.require(:registration).permit(
-        :attended, :volunteer, :other_special_needs, :accepted_code_of_conduct,
+        :user_id, :conference_id, :attended,
+        :volunteer, :other_special_needs, :accepted_code_of_conduct,
         vchoice_ids: [], qanswer_ids: [], qanswers_attributes: [], event_ids: []
       )
     end
diff --git a/app/controllers/admin/resources_controller.rb b/app/controllers/admin/resources_controller.rb
index 07ecb869..a6e51e99 100644
--- a/app/controllers/admin/resources_controller.rb
+++ b/app/controllers/admin/resources_controller.rb
@@ -48,7 +48,7 @@ module Admin
     private
 
     def resource_params
-      params.require(:resource).permit(:name, :description, :quantity, :used)
+      params.require(:resource).permit(:name, :description, :quantity, :used, :conference_id)
     end
   end
 end
diff --git a/app/controllers/admin/roles_controller.rb b/app/controllers/admin/roles_controller.rb
index ecce2287..d69e1ab1 100644
--- a/app/controllers/admin/roles_controller.rb
+++ b/app/controllers/admin/roles_controller.rb
@@ -94,7 +94,7 @@ module Admin
       elsif user.add_role @role.name, role_resource
         flash[:notice] = "Successfully added role #{@role.name} to user #{user.email}"
       else
-        flash[:error] = "Could not add role #{@role.name} to #{user.email}"
+        flash[:error] = "Coud not add role #{@role.name} to #{user.email}"
       end
 
       respond_to do |format|
diff --git a/app/controllers/admin/sponsors_controller.rb b/app/controllers/admin/sponsors_controller.rb
index 2e434f50..bc61d834 100644
--- a/app/controllers/admin/sponsors_controller.rb
+++ b/app/controllers/admin/sponsors_controller.rb
@@ -52,14 +52,14 @@ module Admin
     private
 
     def sponsor_params
-      params.require(:sponsor).permit(:name, :description, :website_url, :picture, :picture_cache, :sponsorship_level_id)
+      params.require(:sponsor).permit(:name, :description, :website_url, :picture, :picture_cache, :sponsorship_level_id, :conference_id)
     end
 
     def sponsorship_level_required
       return unless @conference.sponsorship_levels.empty?
 
       redirect_to admin_conference_sponsorship_levels_path(conference_id: @conference.short_title),
-                  alert: 'You need to create at least one sponsorship level to add a sponsor'
+                  alert: 'You need to create atleast one sponsorship level to add a sponsor'
     end
   end
 end
diff --git a/app/controllers/admin/sponsorship_levels_controller.rb b/app/controllers/admin/sponsorship_levels_controller.rb
index b21cff87..443aa8b9 100644
--- a/app/controllers/admin/sponsorship_levels_controller.rb
+++ b/app/controllers/admin/sponsorship_levels_controller.rb
@@ -61,7 +61,7 @@ module Admin
     private
 
     def sponsorship_level_params
-      params.require(:sponsorship_level).permit(:title)
+      params.require(:sponsorship_level).permit(:title, :conference_id)
     end
   end
 end
diff --git a/app/controllers/admin/tickets_controller.rb b/app/controllers/admin/tickets_controller.rb
index 388020a8..e0e5b186 100644
--- a/app/controllers/admin/tickets_controller.rb
+++ b/app/controllers/admin/tickets_controller.rb
@@ -52,7 +52,7 @@ module Admin
     private
 
     def ticket_params
-      params.require(:ticket).permit(:title, :url, :description, :price_cents, :price_currency, :price, :registration_ticket)
+      params.require(:ticket).permit(:conference, :title, :url, :description, :conference_id, :price_cents, :price_currency, :price, :registration_ticket)
     end
   end
 end
diff --git a/app/controllers/admin/venues_controller.rb b/app/controllers/admin/venues_controller.rb
index 7383fcef..17ba4c99 100644
--- a/app/controllers/admin/venues_controller.rb
+++ b/app/controllers/admin/venues_controller.rb
@@ -46,7 +46,7 @@ module Admin
     private
 
     def venue_params
-      params.require(:venue).permit(:name, :street, :postalcode, :city, :country, :longitude, :latitude, :description, :website, :picture, :picture_cache, :lodgings_attributes)
+      params.require(:venue).permit(:name, :street, :postalcode, :city, :country, :longitude, :latitude, :description, :website, :picture, :picture_cache, :lodgings_attributes, :conference_id)
     end
   end
 end
diff --git a/app/controllers/admin/versions_controller.rb b/app/controllers/admin/versions_controller.rb
index d5b5defd..751ac746 100644
--- a/app/controllers/admin/versions_controller.rb
+++ b/app/controllers/admin/versions_controller.rb
@@ -45,7 +45,7 @@ module Admin
         end
 
       elsif @version.event == 'create' && @version.item
-        # if @version represents a create event and is not currently deleted
+        # if @version represets a create event and is not currently deleted
         @version.item.destroy
         flash[:notice] = 'The selected change was successfully reverted'
 
diff --git a/app/controllers/booths_controller.rb b/app/controllers/booths_controller.rb
index c3a34d63..f8057637 100644
--- a/app/controllers/booths_controller.rb
+++ b/app/controllers/booths_controller.rb
@@ -94,6 +94,7 @@ class BoothsController < ApplicationController
   private
 
   def booth_params
-    params.require(:booth).permit(:title, :description, :reasoning, :picture, :website_url, :submitter_relationship, responsible_ids: [])
+    params.require(:booth).permit(:title, :description, :reasoning, :state, :picture, :conference_id,
+                                  :created_at, :updated_at, :submitter_relationship, :website_url, responsible_ids: [])
   end
 end
diff --git a/app/controllers/conference_registrations_controller.rb b/app/controllers/conference_registrations_controller.rb
index 764438b2..70cfc736 100644
--- a/app/controllers/conference_registrations_controller.rb
+++ b/app/controllers/conference_registrations_controller.rb
@@ -110,6 +110,7 @@ class ConferenceRegistrationsController < ApplicationController
   def registration_params
     params.require(:registration)
         .permit(
+          :conference_id,
           :volunteer, :accepted_code_of_conduct,
           vchoice_ids: [], qanswer_ids: [],
           qanswers_attributes: [],
diff --git a/app/controllers/schedules_controller.rb b/app/controllers/schedules_controller.rb
index fd03abc6..5f68c27c 100644
--- a/app/controllers/schedules_controller.rb
+++ b/app/controllers/schedules_controller.rb
@@ -39,7 +39,7 @@ class SchedulesController < ApplicationController
         @current_day = @conference.current_conference_day
         @day = @current_day.present? ? @current_day : @dates.first
         if @current_day
-          # the schedule takes you to the current time if it is between the start and the end time.
+          # the schedule takes you to the current time if it is beetween the start and the end time.
           @hour_column = @conference.hours_from_start_time(@conf_start, @conference.end_hour)
         end
         # Ids of the @event_schedules of confrmed self_organized tracks along with the selected_schedule_id
diff --git a/app/controllers/ticket_purchases_controller.rb b/app/controllers/ticket_purchases_controller.rb
index b5e957cf..632a7289 100644
--- a/app/controllers/ticket_purchases_controller.rb
+++ b/app/controllers/ticket_purchases_controller.rb
@@ -31,4 +31,10 @@ class TicketPurchasesController < ApplicationController
   def index
     @unpaid_ticket_purchases = current_user.ticket_purchases.by_conference(@conference).unpaid
   end
+
+  private
+
+  def ticket_purchase_params
+    params.require(:ticket_purchase).permit(:ticket_id, :user_id, :conference_id, :quantity)
+  end
 end
diff --git a/app/helpers/conference_helper.rb b/app/helpers/conference_helper.rb
index 2ebeba84..f685ed89 100644
--- a/app/helpers/conference_helper.rb
+++ b/app/helpers/conference_helper.rb
@@ -45,7 +45,7 @@ module ConferenceHelper
           location += "#{v.country_name}, " if v.country_name
           e.location = location
         end
-        e.categories = conference.title, "Audience: #{proposal.difficulty_level.title}", "Track: #{proposal.track.name}"
+        e.categories = conference.title, "Difficulty: #{proposal.difficulty_level.title}", "Track: #{proposal.track.name}"
       end
     end
     calendar
diff --git a/app/helpers/date_time_helper.rb b/app/helpers/date_time_helper.rb
index 71681b2f..420b086a 100644
--- a/app/helpers/date_time_helper.rb
+++ b/app/helpers/date_time_helper.rb
@@ -17,7 +17,7 @@ module DateTimeHelper
   ##
   # Gets a datetime object
   # ====Returns
-  # * +String+ -> formatted datetime object
+  # * +String+ -> formated datetime object
   def format_datetime(obj)
     return unless obj
 
diff --git a/app/models/ability.rb b/app/models/ability.rb
index 26ce7bf5..913c97ff 100644
--- a/app/models/ability.rb
+++ b/app/models/ability.rb
@@ -21,7 +21,6 @@ class Ability
     can [:show], Conference do |conference|
       conference.splashpage&.public == true
     end
-    can :code_of_conduct, Conference
     # Can view the schedule
     can [:schedule, :events], Conference do |conference|
       conference.program.cfp && conference.program.schedule_public
@@ -152,8 +151,6 @@ class Ability
       can :manage, Registration, conference_id: conf_ids_for_organizer
       # To access conference/proposals
       can :manage, Event, program: { conference_id: conf_ids_for_organizer }
-      can :manage, Commercial, commercialable_type: 'Event',
-                               commercialable_id:   Event.where(program_id: Program.where(conference_id: conf_ids_for_organizer).pluck(:id)).pluck(:id)
       # To access comment link in menu bar
       can :index, Comment, commentable_type: 'Event',
                            commentable_id:   Event.where(program_id: Program.where(conference_id: conf_ids_for_organizer).pluck(:id)).pluck(:id)
@@ -165,8 +162,6 @@ class Ability
                            commentable_id:   Event.where(program_id: Program.where(conference_id: conf_ids_for_cfp).pluck(:id)).pluck(:id)
       # To access conference/proposals
       can :manage, Event, program: { conference_id: conf_ids_for_cfp }
-      can :manage, Commercial, commercialable_type: 'Event',
-                               commercialable_id:   Event.where(program_id: Program.where(conference_id: conf_ids_for_cfp).pluck(:id)).pluck(:id)
     end
 
     if conf_ids_for_info_desk
diff --git a/app/models/conference.rb b/app/models/conference.rb
index f8f8361a..6efd70b0 100644
--- a/app/models/conference.rb
+++ b/app/models/conference.rb
@@ -422,7 +422,7 @@ class Conference < ApplicationRecord
 
   ##
   # Returns a hash with affiliation =>
-  # {value: count of registration whose user has that affiliation, color: color}
+  # {value: count of registration whose user has that affilation, color: color}
   # In case that the affiliation is blank, it groups them in None and
   # if the number of persons that have an affiliation are less than the 2% of
   # the total number of registered people, they are grouped in others.
@@ -696,7 +696,7 @@ class Conference < ApplicationRecord
   end
 
   # Returns the number of hours since the conference start hour (9) to the
-  # current hour, in case that the current hour is between the start and the
+  # current hour, in case that the current hour is beetween the start and the
   # end hour (20). Otherwise, returns 0
   def hours_from_start_time(start_hour, end_hour)
     current_time = Time.find_zone(timezone).now
@@ -744,7 +744,7 @@ class Conference < ApplicationRecord
     '#' + next_color_component(:r, i) + next_color_component(:g, i) + next_color_component(:b, i)
   end
 
-  # Auxiliary function which is used in next_color and returns each component of
+  # Auxiliar function which is used in next_color and returns each component of
   # the color. We make use of big prime numbers to avoid repetition and to make
   # consecutive colors clearly different.
   def next_color_component(component, i)
@@ -787,7 +787,7 @@ class Conference < ApplicationRecord
 
   ##
   # Checks if start hour of the conference is greater or equal than the end hour
-  # and that both hours are between 0 and 24
+  # and that both hours are beetween 0 and 24
   #
   # Reports an error when such a condition is found
   def valid_times_range?
@@ -922,7 +922,7 @@ class Conference < ApplicationRecord
   #
   # ====Returns
   # * +True+ -> One difficulty level or more
-  # * +False+ -> No difficulty level
+  # * +False+ -> No diffculty level
   def difficulty_levels_set?
     program.difficulty_levels.any?
   end
@@ -932,7 +932,7 @@ class Conference < ApplicationRecord
   #
   # ====Returns
   # * +True+ -> One difficulty level or more
-  # * +False+ -> No difficulty level
+  # * +False+ -> No diffculty level
   def event_types_set?
     program.event_types.any?
   end
diff --git a/app/models/event.rb b/app/models/event.rb
index c8872429..82f8204b 100644
--- a/app/models/event.rb
+++ b/app/models/event.rb
@@ -94,7 +94,7 @@ class Event < ApplicationRecord
   }.freeze
 
   ##
-  # Checks if the event has a start_time and a room for the selected schedule if there is any
+  # Checkes if the event has a start_time and a room for the selected schedule if there is any
   # ====Returns
   # * +true+ or +false+
   def scheduled?
diff --git a/app/models/program.rb b/app/models/program.rb
index d90f5961..f367d1b2 100644
--- a/app/models/program.rb
+++ b/app/models/program.rb
@@ -133,7 +133,7 @@ class Program < ApplicationRecord
   end
 
   ##
-  # Checks if the program has rating enabled
+  # Checcks if the program has rating enabled
   #
   # ====Returns
   # * +false+ -> If rating is not enabled
diff --git a/app/models/ticket.rb b/app/models/ticket.rb
index fc80f56b..abc014cd 100644
--- a/app/models/ticket.rb
+++ b/app/models/ticket.rb
@@ -13,7 +13,7 @@ class Ticket < ApplicationRecord
   scope :for_registration, -> { where(registration_ticket: true) }
 
   # This validation is for the sake of simplicity.
-  # If we would allow different currencies per conference we also have to handle conversions between currencies!
+  # If we would allow different currencies per conference we also have to handle convertions between currencies!
   validate :tickets_of_conference_have_same_currency
 
   validates :price_cents, :price_currency, :title, presence: true
diff --git a/app/models/user.rb b/app/models/user.rb
index aca92cf9..4cbac281 100644
--- a/app/models/user.rb
+++ b/app/models/user.rb
@@ -111,7 +111,7 @@ class User < ApplicationRecord
   }.freeze
 
   ##
-  # Checks if the user attended the event
+  # Checkes if the user attended the event
   # This is used for events that require registration
   # The user must have registered to attend the event
   # Gets an event
diff --git a/app/views/admin/difficulty_levels/edit.html.haml b/app/views/admin/difficulty_levels/edit.html.haml
index 5986918b..baec7d47 100644
--- a/app/views/admin/difficulty_levels/edit.html.haml
+++ b/app/views/admin/difficulty_levels/edit.html.haml
@@ -2,7 +2,7 @@
   .col-md-12
     .page-header
       %h1
-        Edit Audience
+        Edit Difficulty Level
         = @difficulty_level.title
 .row
   .col-md-8
diff --git a/app/views/admin/difficulty_levels/index.html.haml b/app/views/admin/difficulty_levels/index.html.haml
index 0ab6f53d..282fdfae 100644
--- a/app/views/admin/difficulty_levels/index.html.haml
+++ b/app/views/admin/difficulty_levels/index.html.haml
@@ -1,7 +1,7 @@
 .row
   .col-md-12
     .page-header
-      %h1 Audiences
+      %h1 Difficulty Levels
       %p.text-muted
         Classify your conference.program.events by difficulty
 .row
@@ -32,4 +32,4 @@
                 data: { confirm: "Do you really want to delete #{difficulty_level.title}? Attention: This difficulty level will be removed from all Events that have it set" }
 .row
   .col-md-12.text-right
-    = link_to 'Add Audience', new_admin_conference_program_difficulty_level_path(@conference.short_title), class: 'btn btn-primary'
+    = link_to 'Add Difficulty Level', new_admin_conference_program_difficulty_level_path(@conference.short_title), class: 'btn btn-primary'
diff --git a/app/views/admin/difficulty_levels/new.html.haml b/app/views/admin/difficulty_levels/new.html.haml
index 55bacb47..6d8fc4de 100644
--- a/app/views/admin/difficulty_levels/new.html.haml
+++ b/app/views/admin/difficulty_levels/new.html.haml
@@ -2,7 +2,7 @@
   .col-md-12
     .page-header
       %h1
-        Create Audience 
+        Create Difficulty Level
 .row
   .col-md-8
     = render partial: 'form'
diff --git a/app/views/admin/events/index.html.haml b/app/views/admin/events/index.html.haml
index f3efb5b8..bb6db751 100644
--- a/app/views/admin/events/index.html.haml
+++ b/app/views/admin/events/index.html.haml
@@ -82,7 +82,7 @@
             %th
               %b Track
             %th
-              %b Audience
+              %b Difficulty
             %th
               %b State
             %th
diff --git a/app/views/admin/events/show.html.haml b/app/views/admin/events/show.html.haml
index 2166fc38..d19d056a 100644
--- a/app/views/admin/events/show.html.haml
+++ b/app/views/admin/events/show.html.haml
@@ -92,7 +92,7 @@
               %td{ 'class' => class_for_todo(progress_status['track']) }
                 %span{ 'class' => [icon_for_todo(progress_status['track']), 'fa-lg'] }
           %tr
-            %td= link_to 'Add an Audience level', edit_admin_conference_program_event_path(@event.program.conference.short_title, @event)
+            %td= link_to 'Add a difficulty level', edit_admin_conference_program_event_path(@event.program.conference.short_title, @event)
             %td{ 'class' => class_for_todo(progress_status['difficulty_level']) }
               %span{ 'class' => [icon_for_todo(progress_status['difficulty_level']), 'fa-lg'] }
     #proposal-commercials.tab-pane
diff --git a/app/views/admin/programs/show.html.haml b/app/views/admin/programs/show.html.haml
index af8d6c1d..db1e91ff 100644
--- a/app/views/admin/programs/show.html.haml
+++ b/app/views/admin/programs/show.html.haml
@@ -28,7 +28,7 @@
         %dd
           = tracks(@conference)
         %dt
-          Audiences:
+          Difficulty Levels:
         %dd
           = difficulty_levels(@conference)
         %dt
diff --git a/app/views/admin/registration_periods/_form.html.haml b/app/views/admin/registration_periods/_form.html.haml
index ec274139..2bf25a57 100644
--- a/app/views/admin/registration_periods/_form.html.haml
+++ b/app/views/admin/registration_periods/_form.html.haml
@@ -1,5 +1,5 @@
 %p
-  Setup the time frame in which people can register to your conference
+  Setup the time frame in which people can registrer to your conference
 = form_for(@registration_period, url: admin_conference_registration_period_path(@conference.short_title)) do |f|
   .form-group
     = f.label :start_date
diff --git a/app/views/admin/registrations/index.xlsx.axlsx b/app/views/admin/registrations/index.xlsx.axlsx
index 596d9fd2..a95c163e 100644
--- a/app/views/admin/registrations/index.xlsx.axlsx
+++ b/app/views/admin/registrations/index.xlsx.axlsx
@@ -3,7 +3,7 @@
 wb = xlsx_package.workbook
 wb.add_worksheet(name: 'registrations') do |sheet|
   bold_style = wb.styles.add_style(b: true)
-  row = ['Attended', 'Name', 'Nickname', 'Affilιation', 'Email', 'Ticket Token']
+  row = ['Attended', 'Name', 'Nickname', 'Affilιation', 'Email']
 
   @conference.questions.each do |question|
     row << question.title
@@ -18,7 +18,6 @@ wb.add_worksheet(name: 'registrations') do |sheet|
     row << registration.nickname
     row << registration.affiliation
     row << registration.email
-    row << registration.user.physical_tickets.by_conference(@conference).first&.token
     @conference.questions.each do |question|
       qa = registration.qanswers.find_by(question: question)
       answer = ( qa ? qa.answer.title : '' )
diff --git a/app/views/admin/schedules/show.html.haml b/app/views/admin/schedules/show.html.haml
index ee4ed7b5..df864b88 100644
--- a/app/views/admin/schedules/show.html.haml
+++ b/app/views/admin/schedules/show.html.haml
@@ -17,7 +17,7 @@
           url = update_selected_schedule_admin_conference_program_track_path(@conference.short_title, @schedule.track) + '?[track][selected_schedule_id]='
         else
           value = @schedule.id == @selected_schedule.try(:id)
-          url = admin_conference_program_path(@conference.short_title) + '?program[selected_schedule_id]='
+          url = admin_conference_program_path(@conference.short_title) + '?[program][selected_schedule_id]='
         end
       = check_box_tag @conference.short_title, @schedule.id, value, url: url,
         class: 'switch-checkbox-schedule'
diff --git a/app/views/admin/tracks/edit.html.haml b/app/views/admin/tracks/edit.html.haml
index 5d9fab32..8d29ea44 100644
--- a/app/views/admin/tracks/edit.html.haml
+++ b/app/views/admin/tracks/edit.html.haml
@@ -2,7 +2,7 @@
   .col-md-12
     .page-header
       %h1
-        Edit Track
+        Edit Tack
         = @track.name
 .row
   .col-md-12
diff --git a/app/views/admin/venues/_form.html.haml b/app/views/admin/venues/_form.html.haml
index 39f14aa0..960b01e4 100644
--- a/app/views/admin/venues/_form.html.haml
+++ b/app/views/admin/venues/_form.html.haml
@@ -33,7 +33,7 @@
             = f.file_field :picture
             = f.hidden_field :picture_cache
             %span.help-block
-              This will be displayed on the venue area of the splash page.
+              This will be displayed on the venue are of the splash page.
           .form-group
             = f.label :street
             %abbr{title: 'This field is required'} *
diff --git a/app/views/booths/_form.html.haml b/app/views/booths/_form.html.haml
index 9e10d740..7796149d 100644
--- a/app/views/booths/_form.html.haml
+++ b/app/views/booths/_form.html.haml
@@ -18,7 +18,7 @@
     %abbr{title: 'This field is required'} *
     = f.text_field :submitter_relationship, rows: 5, required: true, class: 'form-control'
     %span.help-block
-      e.g. employee, community manager, etc
+      e.g. employee, comunity manager, etc
   .form-group
     = f.label :website_url, 'Website URL'
     %abbr{title: 'This field is required'} *
diff --git a/app/views/layouts/_admin_sidebar.html.haml b/app/views/layouts/_admin_sidebar.html.haml
index b7fa4791..f4c20006 100644
--- a/app/views/layouts/_admin_sidebar.html.haml
+++ b/app/views/layouts/_admin_sidebar.html.haml
@@ -80,7 +80,7 @@
               = link_to 'Event Types', admin_conference_program_event_types_path(@conference.short_title)
           - if can? :update, @conference.program.difficulty_levels.build, conference_id: @conference.id
             %li{class: active_nav_li(admin_conference_program_difficulty_levels_path(@conference.short_title))}
-              = link_to 'Audience', admin_conference_program_difficulty_levels_path(@conference.short_title)
+              = link_to 'Difficulty Levels', admin_conference_program_difficulty_levels_path(@conference.short_title)
           - if can? :update, @conference.program.schedules.build
             %li{class: active_nav_li(admin_conference_schedules_path(@conference.short_title))}
               = link_to 'Schedules', admin_conference_schedules_path(@conference.short_title)
diff --git a/app/views/proposals/_form.html.haml b/app/views/proposals/_form.html.haml
index 8082dee8..71feac07 100644
--- a/app/views/proposals/_form.html.haml
+++ b/app/views/proposals/_form.html.haml
@@ -37,7 +37,7 @@
   = f.select :language, @program.languages_list, { include_blank: false}, { class: 'select-help-toggle form-control' }
 - if display_details
   - if @conference.program.difficulty_levels.any?
-    = f.label :difficulty_level, 'Audience'
+    = f.label :difficulty_level
     = f.select :difficulty_level_id, @conference.program.difficulty_levels.map{|level| [level.title, level.id ] }, {include_blank: false}, { class: 'select-help-toggle form-control' }
     = render 'shared/select_help_text', f: f, for: :difficulty_level_id, options: @conference.program.difficulty_levels do |difficulty_level|
       = difficulty_level.description
diff --git a/app/views/proposals/_tooltip.html.haml b/app/views/proposals/_tooltip.html.haml
index d5139ea1..13f3155c 100644
--- a/app/views/proposals/_tooltip.html.haml
+++ b/app/views/proposals/_tooltip.html.haml
@@ -27,4 +27,4 @@
       = link_to 'Add a track', edit_conference_program_proposal_path(event.program.conference.short_title, event)
   %li{'class'=>class_for_todo(progress_status['difficulty_level'])}
     %span{'class'=>icon_for_todo(progress_status['difficulty_level'])}
-    = link_to 'Add an Audience', edit_conference_program_proposal_path(event.program.conference.short_title, event)
+    = link_to 'Add a difficulty level', edit_conference_program_proposal_path(event.program.conference.short_title, event)
diff --git a/app/views/proposals/show.html.haml b/app/views/proposals/show.html.haml
index 2944adb1..fa2e2f10 100644
--- a/app/views/proposals/show.html.haml
+++ b/app/views/proposals/show.html.haml
@@ -73,7 +73,7 @@
         %dl#proposal-info
           .col-md-12
             %dt Date:
-            %dd= @event_schedule.start_time.strftime("%Y %B %e - %-I:%M %p") if @event_schedule
+            %dd= @event_schedule.start_time.strftime("%Y %B %e - %H:%M") if @event_schedule
           .col-md-12
             %dt Duration:
             %dd= show_time(@event.event_type.length)
@@ -95,7 +95,7 @@
                 %span.label{style: "background-color: #{@event.track.color}; color: #{ contrast_color(@event.track.color) }"}
                   = @event.track.name
           .col-md-12
-            %dt Audience:
+            %dt Difficulty:
             %dd
               - if @event.difficulty_level
                 %span.label{style: "background-color: #{@event.difficulty_level.color}; color: #{ contrast_color(@event.difficulty_level.color) };"}
@@ -118,7 +118,7 @@
                   %dl
                     %dt Start Time:
                     %dd
-                      = event.program.selected_event_schedules.find { |es| es.event == event }.start_time.strftime("%Y %B %e %-I:%M %p")
+                      = event.program.selected_event_schedules.find { |es| es.event == event }.start_time.strftime("%Y %B %e %H:%M")
                     %br
                       %dt Room:
                       %dd
diff --git a/app/views/schedules/_carousel.html.haml b/app/views/schedules/_carousel.html.haml
index 0df40a41..785a0681 100644
--- a/app/views/schedules/_carousel.html.haml
+++ b/app/views/schedules/_carousel.html.haml
@@ -17,7 +17,9 @@
             - interval_count.times do
               %th.date
                 %span
-                  = (td_start_time).strftime("%-I:%M %p")
+                  = (td_start_time).strftime("%H:")
+                %span
+                  = (td_start_time).strftime("%M")
               - td_start_time += @step_minutes
           - start_room_time = start_time
           - @rooms.each do |room|
diff --git a/app/views/schedules/_event.html.haml b/app/views/schedules/_event.html.haml
index 41f9548a..25f4e1a0 100644
--- a/app/views/schedules/_event.html.haml
+++ b/app/views/schedules/_event.html.haml
@@ -24,9 +24,9 @@
       %span.track
         %span.fa-solid.fa-clock
         %span.label{ style: "background-color: grey" }
-          = event_schedule.start_time.strftime('%-I:%M %p')
+          = event_schedule.start_time.strftime('%H:%M')
           \-
-          = event_schedule.end_time.strftime('%-I:%M %p')
+          = event_schedule.end_time.strftime('%H:%M')
       %span.track
         %span.fa-solid.fa-location-dot
         %span.label{ style: "background-color: grey" }
diff --git a/app/views/schedules/_schedule.html.haml b/app/views/schedules/_schedule.html.haml
index 4ec0acd1..3b4c3dac 100644
--- a/app/views/schedules/_schedule.html.haml
+++ b/app/views/schedules/_schedule.html.haml
@@ -42,7 +42,7 @@
       }
   });
 
-  // hide the right and left controls when necessary after moving the carousel
+  // hide the right and left controls when neccesary after moving the carousel
   $('.carousel').on('slid.bs.carousel', '',
   function(){
     $(this).children('.left.carousel-control').show();
diff --git a/app/views/schedules/events.html.haml b/app/views/schedules/events.html.haml
index 7b16a99f..b6e87e31 100644
--- a/app/views/schedules/events.html.haml
+++ b/app/views/schedules/events.html.haml
@@ -21,6 +21,7 @@
 
     / scheduled events
     - date = nil
+    - time = nil
     - @events_schedules.each do |event_schedule|
       - unless event_schedule.start_time.strftime('%Y-%m-%d').eql?(date)
         .col-xs-12.col-md-12
@@ -29,11 +30,15 @@
               = date = event_schedule.start_time.strftime('%Y-%m-%d')
             %a{ title: "Go up", class: "pull-right", href: "#program" }
               %i{ class: "fa-solid fa-angles-up fa-lg", 'aria-hidden' => true }
-      .col-xs-12.col-md-1
-        .start-time
-          = event_schedule.start_time.strftime('%-I:%M %p')
-      .col-xs-12.col-md-11
-        .new-time-event
+      - unless event_schedule.start_time.strftime('%H:%M').eql?(time)
+        .col-xs-12.col-md-1
+          .start-time
+            = time = event_schedule.start_time.strftime('%H:%M')
+        .col-xs-12.col-md-11
+          .new-time-event
+            = render partial: 'event', locals: { event: event_schedule.event, event_schedule: event_schedule }
+      - else
+        .col-xs-12.col-md-11.col-md-offset-1
           = render partial: 'event', locals: { event: event_schedule.event, event_schedule: event_schedule }
 
     / confirmed events that are not scheduled
diff --git a/app/views/schedules/show.html.haml b/app/views/schedules/show.html.haml
index 7716b63c..8000b1ad 100644
--- a/app/views/schedules/show.html.haml
+++ b/app/views/schedules/show.html.haml
@@ -43,7 +43,7 @@
     });
   });
 
-  // hide the right and left controls when necessary after moving the carousel
+  // hide the right and left controls when neccesary after moving the carousel
   $('.carousel').on('slid.bs.carousel', '',
   function(){
     $(this).children('.left.carousel-control').show();
diff --git a/app/views/shared/_object_changes.html.haml b/app/views/shared/_object_changes.html.haml
index 3069149f..47a3e701 100644
--- a/app/views/shared/_object_changes.html.haml
+++ b/app/views/shared/_object_changes.html.haml
@@ -12,7 +12,7 @@
         %th Updated Attribute
 
         %th{ class: "#{'hidden' if version.event == 'create'}" }
-          Previous Value
+          Prevous Value
 
         %th{ class: "#{'hidden' if version.event == 'destroy'}" }
           New Value
diff --git a/bin/bundle b/bin/bundle
old mode 100644
new mode 100755
diff --git a/bin/bundle_report b/bin/bundle_report
old mode 100644
new mode 100755
diff --git a/bin/delayed_job b/bin/delayed_job
old mode 100644
new mode 100755
diff --git a/bin/deprecations b/bin/deprecations
old mode 100644
new mode 100755
diff --git a/bin/gem-next-diff b/bin/gem-next-diff
old mode 100644
new mode 100755
diff --git a/bin/next b/bin/next
old mode 100644
new mode 100755
diff --git a/bin/rails b/bin/rails
old mode 100644
new mode 100755
diff --git a/bin/rake b/bin/rake
old mode 100644
new mode 100755
diff --git a/bin/rspec b/bin/rspec
old mode 100644
new mode 100755
diff --git a/docker-compose.yml.production-example b/docker-compose.yml.production-example
index f3594778..91cd051c 100644
--- a/docker-compose.yml.production-example
+++ b/docker-compose.yml.production-example
@@ -1,25 +1,24 @@
 services:
-  postgres:
-    image: postgres:16-alpine
+  production_database:
+    image: postgres:12-alpine
     environment:
       PGDATA: /var/lib/postgresql/data/pgdata
-      POSTGRES_USER: osem
       POSTGRES_PASSWORD: mysecretpassword
     volumes:
       - osem_production_database:/var/lib/postgresql/data/pgdata
-  osem:
+  production_web:
     build:
       context: .
       dockerfile: Dockerfile.production
     depends_on:
-      - postgres
+      - production_database
     ports:
-      - 80:5000
+      - 8080:3000
     env_file: .env.production # see dotenv.example file
     environment:
-     OSEM_DB_HOST: postgres
-     OSEM_DB_USER: osem
-     OSEM_DB_PASSWORD: mysecretpassword
+     OSEM_DB_HOST: production_database
+     RAILS_SERVE_STATIC_FILES: 'true'
+    command: foreman start -p 3000
     volumes:
       - osem_production_web_data:/osem/public/system
       - osem_production_web_assets:/osem/public/assets
diff --git a/dotenv.example b/dotenv.example
index c402f156..6d31d9c6 100644
--- a/dotenv.example
+++ b/dotenv.example
@@ -12,7 +12,7 @@
 # The name of the host the database runs on
 # OSEM_DB_HOST=database
 
-# The port the database runs on
+# The port the databse runs on
 # OSEM_DB_PORT=3306
 
 # The user to access the database with
diff --git a/lib/tasks/data_demo.rake b/lib/tasks/data_demo.rake
index b722c211..0e5450b4 100644
--- a/lib/tasks/data_demo.rake
+++ b/lib/tasks/data_demo.rake
@@ -6,7 +6,7 @@ namespace :data do
   task demo: :environment do
     include FactoryBot::Syntax::Methods
 
-    conference = create(:full_conference, title: 'Open Source Event Manager Demo', short_title: 'osemdemo' ,description: "This is an [Open Source Event Manager](http://osem.io/) demo instance. You can log in as **admin** with the password **password123** or you [sign up](/accounts/sign_up) as a user. We hope you enjoy checking out all the functionality, if you have questions do not hesitate to contact us on [IRC](https://web.libera.chat/#osem) or file an issue on [GitHub](https://github.com/openSUSE/osem).\r\n\r\n## Data will be destroyed every thirty minutes! (next reset: #{29.minutes.after})")
+    conference = create(:full_conference, title: 'Open Source Event Manager Demo', short_title: 'osemdemo' ,description: "This is a [Open Source Event Manager](http://osem.io/) demo instance. You can log in as **admin** with the password **password123** or just you just [sign up](/accounts/sign_up) with your own user. We hope you enjoy checking out all the functionality, if you have questions don't hesitate to [contact us](http://osem.io/#contact)!\r\n\r\n## Data will be destroyed every thirty minutes or whenever someone updates the [OSEM source code on github](https://github.com/openSUSE/osem/commits/master).")
     conference.contact.update(email: 'osemdemo@osem.io', sponsor_email: 'osemdemo@osem.io')
     create(:admin, email: 'admin@osem.io', username: 'admin', password: 'password123', password_confirmation: 'password123')
   end
diff --git a/lib/tasks/demo_data_for_development.rake b/lib/tasks/demo_data_for_development.rake
index 5b0ddc09..7a40d19f 100644
--- a/lib/tasks/demo_data_for_development.rake
+++ b/lib/tasks/demo_data_for_development.rake
@@ -7,7 +7,7 @@ namespace :data do
   task surveys: :environment do
     conference = create(:full_conference, start_date: Date.current, end_date: Date.current + 1.day)
     survey_after_conference_active = create(:survey, surveyable: conference, target: :after_conference, title: 'Survey about the conference', start_date: conference.start_date - 1.day, end_date: conference.end_date + 5.days, description: 'Survey about the conference. You can already see it.')
-    # survey_after_conference_inactive = create(:survey, surveyable: conference, target: :after_conference, title: 'Survey about the conference', start_date: conference.start_date + 1.day, end_date: conference.end_date + 5.days, description: 'Survey about the conference. Not available yet!')
+    # survey_after_conference_inactive = create(:survey, surveyable: conference, target: :after_conference, title: 'Survey about the conference', start_date: conference.start_date + 1.day, end_date: conference.end_date + 5.days, description: 'Survey abou the conference. Not available yet!')
     # survey_on_registration = create(:survey, surveyable: conference, target: :during_registration, title: 'Survey during registation', start_date: conference.registration_period.start_date, end_date: conference.registration_period.end_date, description: 'Survey during registration.')
 
     create(:boolean_non_mandatory, survey: survey_after_conference_active)
diff --git a/lib/tasks/user.rake b/lib/tasks/user.rake
index ae262687..fb4688ac 100644
--- a/lib/tasks/user.rake
+++ b/lib/tasks/user.rake
@@ -16,7 +16,7 @@ namespace :user do
     end
   end
 
-  desc "Set email_public attribute true for all users"
+  desc "Set email_public attrubute true for all users"
   task :set_email_public => :environment do
     User.update_all email_public: true
   end
diff --git a/railway.json b/railway.json
new file mode 100644
index 00000000..f5fa5619
--- /dev/null
+++ b/railway.json
@@ -0,0 +1,11 @@
+{
+  "$schema": "https://railway.app/railway.schema.json",
+  "build": {
+    "builder": "nixpacks"
+  },
+  "deploy": {
+    "startCommand": "foreman start -p 3000",
+    "restartPolicyType": "ON_FAILURE",
+    "restartPolicyMaxRetries": 2
+  }
+}
diff --git a/spec/ability/ability_spec.rb b/spec/ability/ability_spec.rb
index 6abf860f..0f3438ac 100644
--- a/spec/ability/ability_spec.rb
+++ b/spec/ability/ability_spec.rb
@@ -264,31 +264,5 @@ describe 'User' do
       it{ should_not be_able_to(:edit, other_self_organized_track) }
       it{ should_not be_able_to(:update, other_self_organized_track) }
     end
-
-    context 'when user is organizer of conference' do
-      let(:conference) { create(:conference) }
-      let(:user) { create(:organizer, resource: conference) }
-      let(:event_in_conference) { create(:event, program: conference.program) }
-      let(:event_in_other_conference) { create(:event) }
-      let(:commercial_in_conference) { create(:commercial, commercialable: event_in_conference) }
-      let(:commercial_in_other_conference) { create(:commercial, commercialable: event_in_other_conference) }
-
-      it{ should be_able_to(:create, event_in_conference.commercials.new) }
-      it{ should be_able_to(:manage, commercial_in_conference) }
-      it{ should_not be_able_to(:manage, commercial_in_other_conference) }
-    end
-
-    context 'when user is on cfp team of conference' do
-      let(:conference) { create(:conference) }
-      let(:user) { create(:cfp_user, resource: conference) }
-      let(:event_in_conference) { create(:event, program: conference.program) }
-      let(:event_in_other_conference) { create(:event) }
-      let(:commercial_in_conference) { create(:commercial, commercialable: event_in_conference) }
-      let(:commercial_in_other_conference) { create(:commercial, commercialable: event_in_other_conference) }
-
-      it{ should be_able_to(:create, event_in_conference.commercials.new) }
-      it{ should be_able_to(:manage, commercial_in_conference) }
-      it{ should_not be_able_to(:manage, commercial_in_other_conference) }
-    end
   end
 end
diff --git a/spec/factories/comments.rb b/spec/factories/comments.rb
index 6b424d26..d30dca9b 100644
--- a/spec/factories/comments.rb
+++ b/spec/factories/comments.rb
@@ -4,7 +4,7 @@
 
 FactoryBot.define do
   factory :comment do
-    body { 'Most interesting comment ever, created by a girl.' }
+    body { 'Most interresting comment ever, created by a girl.' }
     user
     association :commentable, factory: :event
   end
diff --git a/spec/models/conference_spec.rb b/spec/models/conference_spec.rb
old mode 100644
new mode 100755