diff --git a/.rubocop_todo.yml b/.rubocop_todo.yml
index a91f2ae9..f14cfb99 100644
--- a/.rubocop_todo.yml
+++ b/.rubocop_todo.yml
@@ -1,6 +1,6 @@
 # This configuration was generated by
 # `rubocop --auto-gen-config`
-# on 2017-07-14 12:03:16 +0000 using RuboCop version 0.49.1.
+# on 2017-11-27 22:40:12 +0530 using RuboCop version 0.51.0.
 # The point is for the user to remove these configuration records
 # one by one as the offenses are removed from the code base.
 # Note that changes in the inspected code, or installation of new
@@ -46,7 +46,7 @@ Layout/EmptyLineAfterMagicComment:
   Exclude:
     - 'spec/models/conference_spec.rb'
 
-# Offense count: 104
+# Offense count: 109
 # Cop supports --auto-correct.
 # Configuration parameters: EnforcedStyle, SupportedStyles.
 # SupportedStyles: empty_lines, no_empty_lines
@@ -151,7 +151,7 @@ Layout/MultilineHashBraceLayout:
 Layout/MultilineMethodCallBraceLayout:
   Enabled: false
 
-# Offense count: 55
+# Offense count: 53
 # Cop supports --auto-correct.
 # Configuration parameters: EnforcedStyle, SupportedStyles, IndentationWidth.
 # SupportedStyles: aligned, indented, indented_relative_to_receiver
@@ -192,10 +192,11 @@ Layout/SpaceAroundOperators:
   Exclude:
     - 'lib/tasks/data.rake'
 
-# Offense count: 416
+# Offense count: 463
 # Cop supports --auto-correct.
-# Configuration parameters: EnforcedStyle, SupportedStyles.
+# Configuration parameters: EnforcedStyle, SupportedStyles, SupportedStylesForEmptyBraces.
 # SupportedStyles: space, no_space
+# SupportedStylesForEmptyBraces: space, no_space
 Layout/SpaceBeforeBlockBraces:
   Enabled: false
 
@@ -205,20 +206,13 @@ Layout/SpaceBeforeComma:
   Exclude:
     - 'lib/tasks/data_demo.rake'
 
-# Offense count: 1
-# Cop supports --auto-correct.
-# Configuration parameters: AllowForAlignment.
-Layout/SpaceBeforeFirstArg:
-  Exclude:
-    - 'spec/controllers/admin/roles_controller_spec.rb'
-
 # Offense count: 1
 # Cop supports --auto-correct.
 Layout/SpaceBeforeSemicolon:
   Exclude:
     - 'Guardfile'
 
-# Offense count: 51
+# Offense count: 54
 # Cop supports --auto-correct.
 # Configuration parameters: EnforcedStyle, SupportedStyles, EnforcedStyleForEmptyBraces, SupportedStylesForEmptyBraces, SpaceBeforeBlockParameters.
 # SupportedStyles: space, no_space
@@ -293,6 +287,13 @@ Lint/IneffectiveAccessModifier:
     - 'app/models/conference.rb'
 
 # Offense count: 2
+Lint/RescueWithoutErrorClass:
+  Exclude:
+    - 'app/controllers/users/omniauth_callbacks_controller.rb'
+    - 'lib/tasks/migrate_config.rake'
+
+# Offense count: 2
+# Cop supports --auto-correct.
 Lint/ScriptPermission:
   Exclude:
     - 'Guardfile'
@@ -305,49 +306,41 @@ Lint/UnusedBlockArgument:
   Exclude:
     - 'lib/tasks/user.rake'
 
-# Offense count: 114
+# Offense count: 136
 Metrics/AbcSize:
   Max: 86
 
-# Offense count: 233
+# Offense count: 258
 # Configuration parameters: CountComments, ExcludedMethods.
 Metrics/BlockLength:
   Max: 471
 
-# Offense count: 23
+# Offense count: 28
 Metrics/CyclomaticComplexity:
-  Max: 12
-  Exclude:
-    - 'app/models/track.rb'
+  Max: 14
 
-# Offense count: 2353
+# Offense count: 2774
 # Configuration parameters: AllowHeredoc, AllowURI, URISchemes, IgnoreCopDirectives, IgnoredPatterns.
 # URISchemes: http, https
 Metrics/LineLength:
   Max: 619
 
-# Offense count: 120
+# Offense count: 133
 # Configuration parameters: CountComments.
 Metrics/MethodLength:
   Max: 56
-  Exclude:
-    - 'app/models/admin_ability.rb'
 
-# Offense count: 3
+# Offense count: 4
 # Configuration parameters: CountComments.
 Metrics/ModuleLength:
-  Max: 159
-  Exclude:
-    - 'app/helpers/format_helper.rb'
-
-# Offense count: 15
-Metrics/PerceivedComplexity:
-  Max: 16
-  Exclude:
-    - 'app/models/track.rb'
+  Max: 171
 
 # Offense count: 20
-Style/AccessorMethodName:
+Metrics/PerceivedComplexity:
+  Max: 16
+
+# Offense count: 20
+Naming/AccessorMethodName:
   Exclude:
     - 'app/controllers/admin/events_controller.rb'
     - 'app/controllers/application_controller.rb'
@@ -356,6 +349,51 @@ Style/AccessorMethodName:
     - 'app/models/target.rb'
     - 'app/models/user.rb'
 
+# Offense count: 2
+# Configuration parameters: ExpectMatchingDefinition, Regex, IgnoreExecutableScripts, AllowedAcronyms.
+# AllowedAcronyms: CLI, DSL, ACL, API, ASCII, CPU, CSS, DNS, EOF, GUID, HTML, HTTP, HTTPS, ID, IP, JSON, LHS, QPS, RAM, RHS, RPC, SLA, SMTP, SQL, SSH, TCP, TLS, TTL, UDP, UI, UID, UUID, URI, URL, UTF8, VM, XML, XMPP, XSRF, XSS
+Naming/FileName:
+  Exclude:
+    - 'Gemfile'
+    - 'Vagrantfile'
+
+# Offense count: 2
+# Configuration parameters: Blacklist.
+# Blacklist: END, (?-mix:EO[A-Z]{1})
+Naming/HeredocDelimiterNaming:
+  Exclude:
+    - 'spec/factories/users.rb'
+    - 'spec/models/user_spec.rb'
+
+# Offense count: 2
+# Configuration parameters: NamePrefix, NamePrefixBlacklist, NameWhitelist, MethodDefinitionMacros.
+# NamePrefix: is_, has_, have_
+# NamePrefixBlacklist: is_, has_, have_
+# NameWhitelist: is_a?
+# MethodDefinitionMacros: define_method, define_singleton_method
+Naming/PredicateName:
+  Exclude:
+    - 'spec/**/*'
+    - 'app/models/comment.rb'
+    - 'app/models/contact.rb'
+
+# Offense count: 2
+# Configuration parameters: EnforcedStyle, SupportedStyles.
+# SupportedStyles: snake_case, normalcase, non_integer
+Naming/VariableNumber:
+  Exclude:
+    - 'spec/models/ticket_purchase_spec.rb'
+
+# Offense count: 4
+# Cop supports --auto-correct.
+# Configuration parameters: AutoCorrect.
+Performance/HashEachMethods:
+  Exclude:
+    - 'app/controllers/admin/conferences_controller.rb'
+    - 'app/helpers/application_helper.rb'
+    - 'db/migrate/20140701123203_add_events_per_week_to_conference.rb'
+    - 'spec/factories/event_users.rb'
+
 # Offense count: 1
 # Cop supports --auto-correct.
 # Configuration parameters: EnforcedStyle, SupportedStyles.
@@ -386,7 +424,14 @@ Style/ConditionalAssignment:
     - 'db/migrate/20140610165551_migrate_data_person_to_user.rb'
     - 'db/migrate/20140820124117_undo_wrong_migration20140801080705_add_users_to_events.rb'
 
-# Offense count: 464
+# Offense count: 9
+Style/DateTime:
+  Exclude:
+    - 'app/models/conference.rb'
+    - 'app/models/program.rb'
+    - 'spec/models/conference_spec.rb'
+
+# Offense count: 488
 Style/Documentation:
   Enabled: false
 
@@ -419,14 +464,13 @@ Style/EmptyMethod:
     - 'db/migrate/20130216122155_set_registration_defaults_to_false.rb'
 
 # Offense count: 2
-# Configuration parameters: ExpectMatchingDefinition, Regex, IgnoreExecutableScripts, AllowedAcronyms.
-# AllowedAcronyms: CLI, DSL, ACL, API, ASCII, CPU, CSS, DNS, EOF, GUID, HTML, HTTP, HTTPS, ID, IP, JSON, LHS, QPS, RAM, RHS, RPC, SLA, SMTP, SQL, SSH, TCP, TLS, TTL, UDP, UI, UID, UUID, URI, URL, UTF8, VM, XML, XMPP, XSRF, XSS
-Style/FileName:
+# Cop supports --auto-correct.
+Style/Encoding:
   Exclude:
-    - 'Gemfile'
-    - 'Vagrantfile'
+    - 'app/uploaders/picture_uploader.rb'
+    - 'spec/models/conference_spec.rb'
 
-# Offense count: 24
+# Offense count: 32
 # Configuration parameters: MinBodyLength.
 Style/GuardClause:
   Enabled: false
@@ -445,7 +489,6 @@ Style/HashSyntax:
 # Configuration parameters: MaxLineLength.
 Style/IfUnlessModifier:
   Exclude:
-    - 'app/controllers/admin/booths_controller.rb'
     - 'app/controllers/admin/events_controller.rb'
     - 'app/controllers/api/v1/events_controller.rb'
     - 'app/controllers/conference_registrations_controller.rb'
@@ -454,7 +497,6 @@ Style/IfUnlessModifier:
     - 'app/models/commercial.rb'
     - 'app/models/conference.rb'
     - 'app/models/email_settings.rb'
-    - 'app/models/ticket_purchase.rb'
     - 'app/models/user.rb'
     - 'db/migrate/20151031092713_change_conference_id_to_venue_id_in_rooms.rb'
     - 'lib/tasks/events_registrations.rake'
@@ -469,7 +511,7 @@ Style/LineEndConcatenation:
     - 'spec/features/conference_spec.rb'
     - 'spec/features/registration_periods_spec.rb'
 
-# Offense count: 6
+# Offense count: 9
 # Cop supports --auto-correct.
 # Configuration parameters: EnforcedStyle, SupportedStyles.
 # SupportedStyles: require_parentheses, require_no_parentheses, require_no_parentheses_except_multiline
@@ -498,12 +540,14 @@ Style/MutableConstant:
 
 # Offense count: 4
 # Cop supports --auto-correct.
+# Configuration parameters: Whitelist.
+# Whitelist: be, be_a, be_an, be_between, be_falsey, be_kind_of, be_instance_of, be_truthy, be_within, eq, eql, end_with, include, match, raise_error, respond_to, start_with
 Style/NestedParenthesizedCalls:
   Exclude:
     - 'spec/features/conference_spec.rb'
     - 'spec/models/conference_spec.rb'
 
-# Offense count: 26
+# Offense count: 27
 # Cop supports --auto-correct.
 # Configuration parameters: EnforcedStyle, MinBodyLength, SupportedStyles.
 # SupportedStyles: skip_modifier_ifs, always
@@ -548,6 +592,12 @@ Style/OptionalArguments:
   Exclude:
     - 'app/models/event.rb'
 
+# Offense count: 1
+# Cop supports --auto-correct.
+Style/OrAssignment:
+  Exclude:
+    - 'app/controllers/schedules_controller.rb'
+
 # Offense count: 3
 # Cop supports --auto-correct.
 # Configuration parameters: AllowSafeAssignment.
@@ -557,7 +607,7 @@ Style/ParenthesesAroundCondition:
     - 'app/controllers/application_controller.rb'
     - 'app/helpers/format_helper.rb'
 
-# Offense count: 14
+# Offense count: 15
 # Cop supports --auto-correct.
 # Configuration parameters: PreferredDelimiters.
 Style/PercentLiteralDelimiters:
@@ -571,20 +621,9 @@ Style/PercentLiteralDelimiters:
     - 'app/models/contact.rb'
     - 'app/models/registration.rb'
     - 'app/models/subscription.rb'
+    - 'app/models/track.rb'
     - 'app/uploaders/picture_uploader.rb'
     - 'spec/models/program_spec.rb'
-    - 'app/models/track.rb'
-
-# Offense count: 2
-# Configuration parameters: NamePrefix, NamePrefixBlacklist, NameWhitelist.
-# NamePrefix: is_, has_, have_
-# NamePrefixBlacklist: is_, has_, have_
-# NameWhitelist: is_a?
-Style/PredicateName:
-  Exclude:
-    - 'spec/**/*'
-    - 'app/models/comment.rb'
-    - 'app/models/contact.rb'
 
 # Offense count: 1
 # Cop supports --auto-correct.
@@ -662,7 +701,7 @@ Style/StringLiteralsInInterpolation:
   Exclude:
     - 'lib/tasks/dump_db.rake'
 
-# Offense count: 73
+# Offense count: 79
 # Cop supports --auto-correct.
 # Configuration parameters: EnforcedStyle, MinSize, SupportedStyles.
 # SupportedStyles: percent, brackets
@@ -708,10 +747,3 @@ Style/UnneededInterpolation:
   Exclude:
     - 'app/helpers/format_helper.rb'
     - 'spec/controllers/admin/conferences_controller_spec.rb'
-
-# Offense count: 2
-# Configuration parameters: EnforcedStyle, SupportedStyles.
-# SupportedStyles: snake_case, normalcase, non_integer
-Style/VariableNumber:
-  Exclude:
-    - 'spec/models/ticket_purchase_spec.rb'
diff --git a/.travis.yml b/.travis.yml
index 6650fbf9..88c50189 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -22,7 +22,7 @@ before_script:
   - cp config/database.yml.travis config/database.yml
   - cp config/secrets.yml.example config/secrets.yml
   - mysql -u root -e 'create database osem_test;'
-  - RAILS_ENV=test bundle exec rake db:migrate --trace
+  - RAILS_ENV=test bundle exec rake db:schema:load --trace
 script:
   - "./travis_script.sh $TEST_SUITE"
 env:
diff --git a/Gemfile b/Gemfile
index 22dc5f6e..d4e3f517 100644
--- a/Gemfile
+++ b/Gemfile
@@ -44,6 +44,9 @@ gem 'omniauth-openid'
 gem 'omniauth-google-oauth2'
 gem 'omniauth-github'
 
+# Bot-filtering
+gem 'recaptcha', require: 'recaptcha/rails'
+
 # as authorization framework
 gem 'cancancan'
 
@@ -182,6 +185,10 @@ gem 'cloudinary'
 # for setting app configuration in the environment
 gem 'dotenv-rails'
 
+# configurable toggles for functionality
+# https://github.com/mgsnova/feature
+gem 'feature'
+
 # For countable.js
 gem "countable-rails", "~> 0.0.1"
 
@@ -212,7 +219,7 @@ group :development do
   gem 'spring-commands-rspec'
   gem 'haml_lint', '~> 0.24.0'
   # for static code analisys
-  gem 'rubocop', '~> 0.49.0', require: false
+  gem 'rubocop', '~> 0.51.0', require: false
   # as database
   gem 'sqlite3'
   # to open mails
diff --git a/Gemfile.lock b/Gemfile.lock
index dc730e82..eb9eed9e 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -179,6 +179,7 @@ GEM
       multipart-post (>= 1.2, < 3)
     fastimage (2.0.0)
       addressable (~> 2)
+    feature (1.4.0)
     ffi (1.9.18)
     font-awesome-rails (4.7.0.2)
       railties (>= 3.2, < 5.2)
@@ -324,9 +325,9 @@ GEM
       activerecord (>= 3.0, < 6.0)
       activesupport (>= 3.0, < 6.0)
       request_store (~> 1.1)
-    parallel (1.11.2)
-    parser (2.4.0.0)
-      ast (~> 2.2)
+    parallel (1.12.0)
+    parser (2.4.0.2)
+      ast (~> 2.3)
     pdf-core (0.2.5)
     phantomjs (2.1.1.0)
     piwik_analytics (1.0.2)
@@ -410,7 +411,7 @@ GEM
       thor (>= 0.18.1, < 2.0)
     rainbow (2.2.2)
       rake
-    rake (12.0.0)
+    rake (12.3.0)
     rb-fsevent (0.10.2)
     rb-inotify (0.9.10)
       ffi (>= 0.5.0, < 2)
@@ -420,6 +421,8 @@ GEM
       loggability (~> 0.12)
       rdoc (~> 5.0)
       yajl-ruby (~> 1.3)
+    recaptcha (4.6.2)
+      json
     redcarpet (3.2.3)
     referer-parser (0.2.1)
     request_store (1.1.0)
@@ -458,16 +461,16 @@ GEM
       rspec-mocks (~> 3.6.0)
       rspec-support (~> 3.6.0)
     rspec-support (3.6.0)
-    rubocop (0.49.1)
+    rubocop (0.51.0)
       parallel (~> 1.10)
       parser (>= 2.3.3.1, < 3.0)
       powerpack (~> 0.1)
-      rainbow (>= 1.99.1, < 3.0)
+      rainbow (>= 2.2.2, < 3.0)
       ruby-progressbar (~> 1.7)
       unicode-display_width (~> 1.0, >= 1.0.1)
     ruby-oembed (0.8.14)
     ruby-openid (2.5.0)
-    ruby-progressbar (1.8.1)
+    ruby-progressbar (1.9.0)
     ruby_dep (1.5.0)
     rubyzip (1.2.1)
     safe_yaml (1.0.4)
@@ -552,7 +555,7 @@ GEM
       chronic (>= 0.6.3)
     xpath (2.0.0)
       nokogiri (~> 1.3)
-    yajl-ruby (1.3.0)
+    yajl-ruby (1.3.1)
 
 PLATFORMS
   ruby
@@ -589,6 +592,7 @@ DEPENDENCIES
   dotenv-rails
   factory_girl_rails
   faker
+  feature
   font-awesome-rails
   formtastic (~> 3.1.1)
   formtastic-bootstrap
@@ -636,13 +640,14 @@ DEPENDENCIES
   rails-i18n (~> 4.0.0)
   rails_12factor
   rdoc-generator-fivefish
+  recaptcha
   redcarpet
   responders (~> 2.0)
   rolify
   rqrcode
   rspec-activemodel-mocks
   rspec-rails (~> 3.5, >= 3.5.2)
-  rubocop (~> 0.49.0)
+  rubocop (~> 0.51.0)
   ruby-oembed
   sass-rails (>= 4.0.2)
   selectize-rails
@@ -663,4 +668,4 @@ DEPENDENCIES
   whenever
 
 BUNDLED WITH
-   1.15.4
+   1.16.0
diff --git a/app/assets/stylesheets/osem.css.scss b/app/assets/stylesheets/osem.css.scss
index 79768c5d..bbcabc44 100644
--- a/app/assets/stylesheets/osem.css.scss
+++ b/app/assets/stylesheets/osem.css.scss
@@ -1,3 +1,5 @@
+@import "bootstrap/mixins";
+
 html {
   position: relative;
   min-height: 100%;
@@ -104,3 +106,12 @@ p.comment-body {
 .qr-image{
   margin-left: 120px;
 }
+
+.g-recaptcha {
+    @include clearfix;
+    padding-bottom: 12px;
+    
+    div {
+        float: right;
+    }
+}
diff --git a/app/controllers/registrations_controller.rb b/app/controllers/registrations_controller.rb
index e141084c..e020d217 100644
--- a/app/controllers/registrations_controller.rb
+++ b/app/controllers/registrations_controller.rb
@@ -1,5 +1,5 @@
 class RegistrationsController < Devise::RegistrationsController
-  before_action :configure_permitted_parameters, if: :devise_controller?
+  prepend_before_action :check_captcha, only: [:create]
 
   def edit
     @openids = Openid.where(user_id: current_user.id).order(:provider)
@@ -21,14 +21,34 @@ class RegistrationsController < Devise::RegistrationsController
     edit_user_registration_path(resource)
   end
 
-  def configure_permitted_parameters
-    devise_parameter_sanitizer.permit(:account_update) do |u|
-      u
-          .permit(:email, :password, :password_confirmation, :current_password, :username, :email_public)
-    end
-    devise_parameter_sanitizer.permit(:sign_up) do |u|
-      u
-          .permit(:email, :password, :password_confirmation, :name, :username)
+  private
+
+  def sign_up_params
+    params.require(:user).permit(
+      :email,
+      :password,
+      :password_confirmation,
+      :name,
+      :username
+    )
+  end
+
+  def account_update_params
+    params.require(:user).permit(
+      :email,
+      :password,
+      :password_confirmation,
+      :current_password,
+      :username,
+      :email_public
+    )
+  end
+
+  def check_captcha
+    unless Feature.inactive?(:recaptcha) || verify_recaptcha
+      self.resource = resource_class.new sign_up_params
+      resource.validate # Look for any other validation errors besides Recaptcha
+      respond_with_navigational(resource) { render :new }
     end
   end
 end
diff --git a/app/models/ticket.rb b/app/models/ticket.rb
index 13646c9f..97a3089b 100644
--- a/app/models/ticket.rb
+++ b/app/models/ticket.rb
@@ -61,7 +61,7 @@ class Ticket < ActiveRecord::Base
   end
 
   def tickets_turnover_total(id)
-    tickets = TicketPurchase.where(ticket_id: id)
+    tickets = TicketPurchase.where(ticket_id: id).paid
     tickets.inject(0){ |sum, ticket| sum + (ticket.amount_paid * ticket.quantity) }
   end
 
diff --git a/app/views/devise/registrations/new.html.haml b/app/views/devise/registrations/new.html.haml
index aa9c4db4..64aaa99e 100644
--- a/app/views/devise/registrations/new.html.haml
+++ b/app/views/devise/registrations/new.html.haml
@@ -12,6 +12,8 @@
             = f.input :name, input_html: { required: true }, hint: 'This is your real name'
             = f.input :password, input_html: { required: true }
             = f.input :password_confirmation, input_html: { required: true }
+            - Feature.with(:recaptcha) do
+              = recaptcha_tags
             %p.text-right
               = f.action :submit, as: :button, label: 'Sign Up', button_html: { class: 'btn btn-success' }
 
diff --git a/config/environments/production.rb b/config/environments/production.rb
index 4e2c2e79..a70ef729 100644
--- a/config/environments/production.rb
+++ b/config/environments/production.rb
@@ -33,7 +33,7 @@ Osem::Application.configure do
   # config.action_dispatch.x_sendfile_header = 'X-Accel-Redirect' # for nginx
 
   # Force all access to the app over SSL, use Strict-Transport-Security, and use secure cookies.
-  # config.force_ssl = true
+  config.force_ssl = !!ENV['FORCE_SSL']
 
   # See everything in the log (default is :info)
   config.log_level = :info
diff --git a/config/initializers/feature.rb b/config/initializers/feature.rb
new file mode 100644
index 00000000..415d84f7
--- /dev/null
+++ b/config/initializers/feature.rb
@@ -0,0 +1,10 @@
+require 'feature'
+
+repo = Feature::Repository::SimpleRepository.new
+
+# configure features here
+unless(ENV['RECAPTCHA_SITE_KEY'].blank? || ENV['RECAPTCHA_SECRET_KEY'].blank?)
+  repo.add_active_feature :recaptcha
+end
+
+Feature.set_repository repo
diff --git a/db/schema.rb b/db/schema.rb
index bdf3ad65..ea1e3dd7 100644
--- a/db/schema.rb
+++ b/db/schema.rb
@@ -505,7 +505,7 @@ ActiveRecord::Schema.define(version: 20170924190528) do
     t.integer  "user_id"
     t.integer  "payment_id"
     t.integer  "week"
-    t.float    "amount_paid"
+    t.float    "amount_paid",   default: 0.0
   end
 
   create_table "ticket_scannings", force: :cascade do |t|
@@ -579,7 +579,6 @@ ActiveRecord::Schema.define(version: 20170924190528) do
     t.boolean  "is_admin",               default: false
     t.string   "username"
     t.boolean  "is_disabled",            default: false
-    t.string   "token"
   end
 
   add_index "users", ["confirmation_token"], name: "index_users_on_confirmation_token", unique: true
diff --git a/docker-compose.env.example b/docker-compose.env.example
index 2aedbe73..905ff612 100644
--- a/docker-compose.env.example
+++ b/docker-compose.env.example
@@ -19,10 +19,10 @@ DATABASE_PORT=3306
 # having to create a .env file:
 # https://github.com/openSUSE/osem/blob/master/dotenv.example
 
-OSEM_NAME=Dockerized OSEM
-OSEM_HOSTNAME=http://localhost:9292
-OSEM_ERRBIT_HOST=localhost
-SECRET_KEY_BASE=changemechangemechangeme
+OSEM_NAME="Dockerized OSEM"
+OSEM_HOSTNAME="http://localhost:9292"
+OSEM_ERRBIT_HOST="localhost"
+SECRET_KEY_BASE=changemechangemechangeme"
 
 # these settings work for the MailHog server that is enabled by default in
 # docker-compose.yml
@@ -31,9 +31,10 @@ SECRET_KEY_BASE=changemechangemechangeme
 # your users are going to see the HTTP status 500 page
 # you should comment out or remove the mailhog service from docker-compose.yml,
 # too
-OSEM_EMAIL_ADDRESS=osem@mailhog
-OSEM_SMTP_AUTHENTICATION=login
-OSEM_SMTP_ADDRESS=mailhog
-OSEM_SMTP_PORT=1025
-OSEM_SMTP_USERNAME=mailhog
-OSEM_SMTP_PASSWORD=mailhog
+OSEM_EMAIL_ADDRESS="osem@mailhog"
+OSEM_SMTP_AUTHENTICATION="login"
+OSEM_SMTP_ADDRESS="mailhog"
+OSEM_SMTP_PORT="1025"
+OSEM_SMTP_USERNAME="mailhog"
+OSEM_SMTP_PASSWORD="mailhog"
+
diff --git a/dotenv.example b/dotenv.example
index 77c28e4c..a5622a4c 100644
--- a/dotenv.example
+++ b/dotenv.example
@@ -63,3 +63,10 @@ OSEM_SMTP_OPENSSL_VERIFY_MODE=""
 
 # Enable the usage of the devise ichain plugin
 OSEM_ICHAIN_ENABLED=false
+
+# enable this to force SSL
+# FORCE_SSL="1"
+
+# ReCAPTCHA keys
+RECAPTCHA_SITE_KEY=""
+RECAPTCHA_SECRET_KEY=""