diff --git a/card-mod-account/set/right/account/views.rb b/card-mod-account/set/right/account/views.rb
index e260738e06..534b5e6516 100644
--- a/card-mod-account/set/right/account/views.rb
+++ b/card-mod-account/set/right/account/views.rb
@@ -16,7 +16,7 @@
   end
 
   view :token_days do
-    Card.config.token_expiry / 1.day
+    Cardio.config.token_expiry / 1.day
   end
 
   # DEPRECATED
diff --git a/card-mod-account/set/right/api_key.rb b/card-mod-account/set/right/api_key.rb
index d2467401eb..01caa5aba7 100644
--- a/card-mod-account/set/right/api_key.rb
+++ b/card-mod-account/set/right/api_key.rb
@@ -34,7 +34,7 @@ def validate! api_key
 #     if expiration.present?
 #       term_from_string expiration
 #     else
-#       Card.config.token_expiry
+#       Cardio.config.token_expiry
 #     end
 # end
 
diff --git a/card-mod-account/set/type/user/setup_help.haml b/card-mod-account/set/type/user/setup_help.haml
index 84c9120032..0a8b47dc29 100644
--- a/card-mod-account/set/type/user/setup_help.haml
+++ b/card-mod-account/set/type/user/setup_help.haml
@@ -4,7 +4,7 @@
   permissioned roles. You can configure these roles at any time.
 
 
-- if Card.config.action_mailer.perform_deliveries == false
+- if Cardio.config.action_mailer.perform_deliveries == false
   .bg-warning.p-3
     WARNING: Email delivery is turned off.
     Change settings in config/application.rb to send sign up notifications.
diff --git a/card-mod-account/spec/set/right/account_spec.rb b/card-mod-account/spec/set/right/account_spec.rb
index 0c23c6cc5c..c8190fba7b 100644
--- a/card-mod-account/spec/set/right/account_spec.rb
+++ b/card-mod-account/spec/set/right/account_spec.rb
@@ -78,7 +78,7 @@
     end
 
     it "contains expiry days" do
-      msg = "valid for #{Card.config.token_expiry / 1.day} days"
+      msg = "valid for #{Cardio.config.token_expiry / 1.day} days"
       expect(@mail.parts[0].body.raw_source).to include(msg)
     end
   end
@@ -124,7 +124,7 @@
     end
 
     it "contains expiry days" do
-      url = "valid for #{Card.config.token_expiry / 1.day} days"
+      url = "valid for #{Cardio.config.token_expiry / 1.day} days"
       expect(@mail.parts[0].body.raw_source).to include(url)
     end
   end
diff --git a/card-mod-carrierwave/lib/carrier_wave/file_card_uploader.rb b/card-mod-carrierwave/lib/carrier_wave/file_card_uploader.rb
index e87820df42..03a2be47a9 100644
--- a/card-mod-carrierwave/lib/carrier_wave/file_card_uploader.rb
+++ b/card-mod-carrierwave/lib/carrier_wave/file_card_uploader.rb
@@ -1,7 +1,7 @@
 module CarrierWave
   class << self
     def tmp_path
-      @tmp_path ||= Card.paths["tmp"].existent.first
+      @tmp_path ||= Cardio.paths["tmp"].existent.first
     end
   end
 
diff --git a/card-mod-carrierwave/set/abstract/attachment/paths.rb b/card-mod-carrierwave/set/abstract/attachment/paths.rb
index 210a30fe8e..0c4ddeae9b 100644
--- a/card-mod-carrierwave/set/abstract/attachment/paths.rb
+++ b/card-mod-carrierwave/set/abstract/attachment/paths.rb
@@ -29,7 +29,7 @@ def mod_dir new_mod=nil
 end
 
 def files_base_dir
-  dir = bucket ? bucket_config[:subdirectory] : Card.paths["files"].existent.first
+  dir = bucket ? bucket_config[:subdirectory] : Cardio.paths["files"].existent.first
   dir || files_base_dir_configuration_error
 end
 
diff --git a/card-mod-history/set/all/history/act_listing.rb b/card-mod-history/set/all/history/act_listing.rb
index 88e9e28791..c806cf5fc2 100644
--- a/card-mod-history/set/all/history/act_listing.rb
+++ b/card-mod-history/set/all/history/act_listing.rb
@@ -1,4 +1,4 @@
-ACTS_PER_PAGE = Card.config.acts_per_page
+ACTS_PER_PAGE = Cardio.config.acts_per_page
 
 format :html do
   def act_from_context
diff --git a/card/README.md b/card/README.md
index c970b958e6..51b32d57b3 100644
--- a/card/README.md
+++ b/card/README.md
@@ -109,12 +109,12 @@ really), because Set functionality is almost always developed using our Set
 DSL, which automatically handles the ruby module naming based on the file
 name.
 
-Cards, Formats, Sets, and other structures can all be developed via {Card::Mod
+Cards, Formats, Sets, and other structures can all be developed via {Cardio::Mod
 Mods}.
 
 ## Mods
 
-{Card::Mod Card Mods} (short for *modules* or *modifications*) are the primary
+{Cardio::Mod Card Mods} (short for *modules* or *modifications*) are the primary
 mechanism for developing and sharing Decko code. If you're just getting
-started as a Decko developer, learning about {Card::Mod Mods} is a great next
+started as a Decko developer, learning about {Cardio::Mod Mods} is a great next
 step.
diff --git a/card/card.gemspec b/card/card.gemspec
index 4f8d98e40d..459814d532 100644
--- a/card/card.gemspec
+++ b/card/card.gemspec
@@ -11,8 +11,11 @@ DeckoGem.gem "card" do |s, d|
     'Card "Sharks" use links, nests, types, patterned names, queries, views, ' \
     "events, and rules to create rich structures."
 
-  s.files = Dir["VERSION", "README.md", "LICENSE", "GPL", ".yardopts",
-                "{config,db,lib,mod,tmpsets}/**/*"]
+  s.files = Dir["VERSION", "README.md", "LICENSE", "GPL",
+                "{exe,config,db,lib,mod}/**/*"]
+
+  s.bindir        = "exe"
+  s.executables   = ["card"]
 
   d.depends_on(
     ["cardname",             d.decko_version],
diff --git a/card/config/initializers/02_patches/zeitwerk.rb b/card/config/initializers/02_patches/zeitwerk.rb
index 8eb9b46cda..a4d27591f7 100644
--- a/card/config/initializers/02_patches/zeitwerk.rb
+++ b/card/config/initializers/02_patches/zeitwerk.rb
@@ -4,10 +4,10 @@ def reload
       super
       return unless reloading_enabled?
 
-      # reloading the Card class triggers also ::Card::Mod.load
+      # reloading the Card class triggers also ::Cardio::Mod.load
       # via the after_card hook
       ::Card
-      # ::Card::Mod.load
+      # ::Cardio::Mod.load
     end
   end
 end
diff --git a/card/db/migrate_core_cards/20141119001955_make_symlinks_relative.rb b/card/db/migrate_core_cards/20141119001955_make_symlinks_relative.rb
index 85b2c21dd9..8f731a1fc4 100644
--- a/card/db/migrate_core_cards/20141119001955_make_symlinks_relative.rb
+++ b/card/db/migrate_core_cards/20141119001955_make_symlinks_relative.rb
@@ -2,7 +2,7 @@
 
 class MakeSymlinksRelative < Card::Migration
   def up
-    Card.paths["files"].each do |file_path|
+    Cardio.paths["files"].each do |file_path|
       files = Dir.glob(File.join file_path, "**", "*")
       symlinks = files.select { |f| File.symlink? f }
       symlinks.each do |symlink|
diff --git a/card/db/migrate_core_cards/20190204195039_add_rule_card.rb b/card/db/migrate_core_cards/20190204195039_add_rule_card.rb
index 539db1d4a1..cc9904d3d9 100644
--- a/card/db/migrate_core_cards/20190204195039_add_rule_card.rb
+++ b/card/db/migrate_core_cards/20190204195039_add_rule_card.rb
@@ -5,6 +5,6 @@ def up
     ensure_card "*rule", codename: "rule", type_id: Card::SetID
 
     # the following re-registers set patterns, now including the rule pattern
-    Card::Mod::Loader.reload_sets
+    Cardio::Mod::Loader.reload_sets
   end
 end
diff --git a/card/db/seeds.rb b/card/db/seeds.rb
index 9653079f36..699416cf08 100644
--- a/card/db/seeds.rb
+++ b/card/db/seeds.rb
@@ -1,4 +1,4 @@
 require "card/seed_consts"
 require "active_record/fixtures"
 ActiveRecord::FixtureSet.create_fixtures CARD_SEED_PATH, CARD_SEED_TABLES
-Card::Mod::Loader.load_mods
+Cardio::Mod::Loader.load_mods
diff --git a/card/lib/card.rb b/card/lib/card.rb
index ff6de5b210..46520d3fa6 100644
--- a/card/lib/card.rb
+++ b/card/lib/card.rb
@@ -1,5 +1,6 @@
 # -*- encoding : utf-8 -*-
 
+raise "Defined?" if Cardio.card_defined?
 ActiveSupport.run_load_hooks(:before_card, self)
 
 # Cards are wiki-inspired building blocks.
@@ -92,7 +93,7 @@
 # card presentation, while events customize card transactions. Or, if you like, views
 # and events respectively alter cards in _space_ and _time_.
 #
-# Both views and events are defined in {Card::Mod mods}, short for modules or
+# Both views and events are defined in {Cardio::Mod mods}, short for modules or
 # modifications.
 #
 # {Card::Set::Format::AbstractFormat More on views}
diff --git a/card/lib/card/auth.rb b/card/lib/card/auth.rb
index ca5230ad66..d61bd64478 100644
--- a/card/lib/card/auth.rb
+++ b/card/lib/card/auth.rb
@@ -23,7 +23,7 @@ def authenticate email, password
         case
         when !account                                 then nil
         when !account.active?                         then nil
-        when Card.config.no_authentication            then account
+        when Cardio.config.no_authentication            then account
         when password_valid?(account, password.strip) then account
         end
       end
diff --git a/card/lib/card/auth/permissions.rb b/card/lib/card/auth/permissions.rb
index f03007d354..a4cd10076b 100644
--- a/card/lib/card/auth/permissions.rb
+++ b/card/lib/card/auth/permissions.rb
@@ -45,7 +45,7 @@ def createable_types
           Auth.as_bot do
             Card.search(
               { type: Card::CardtypeID, return: :name,
-                not: { codename: ["in"] + Card.config.non_createable_types } },
+                not: { codename: ["in"] + Cardio.config.non_createable_types } },
               "find createable types"
             )
           end
diff --git a/card/lib/card/auth/token.rb b/card/lib/card/auth/token.rb
index a8a71f0bee..721bcdd148 100644
--- a/card/lib/card/auth/token.rb
+++ b/card/lib/card/auth/token.rb
@@ -30,7 +30,7 @@ def decode token
         end
 
         def expiration
-          Card.config.token_expiry.from_now.to_i
+          Cardio.config.token_expiry.from_now.to_i
         end
       end
     end
diff --git a/card/lib/card/content/chunk.rb b/card/lib/card/content/chunk.rb
index 3d8cc3079a..9d869c84c7 100644
--- a/card/lib/card/content/chunk.rb
+++ b/card/lib/card/content/chunk.rb
@@ -92,5 +92,5 @@ def validate_chunk_list_key chunk_list_key
       register_list :references_keep_escaping,  %i[KeepEscapedLiteral Nest Link]
     end
   end
-  Card::Mod::Loader.load_chunks
+  Cardio::Mod::Loader.load_chunks
 end
diff --git a/card/lib/card/env.rb b/card/lib/card/env.rb
index 11597f4e6a..296b322b2f 100644
--- a/card/lib/card/env.rb
+++ b/card/lib/card/env.rb
@@ -2,7 +2,7 @@ class Card
   # Card::Env is a module for containing the variable details of the environment
   # in which Card operates.
   #
-  # Env can differ for each request; Card.config should not.
+  # Env can differ for each request; Cardio.config should not.
   module Env
     extend LocationHistory
     extend RequestAssignments
diff --git a/card/lib/card/env/location.rb b/card/lib/card/env/location.rb
index 88018a219e..4640da90b0 100644
--- a/card/lib/card/env/location.rb
+++ b/card/lib/card/env/location.rb
@@ -12,7 +12,7 @@ def card_path rel_path
         if rel_path =~ %r{^(https?\:)?/}
           rel_path
         else
-          "#{Card.config.relative_url_root}/#{rel_path}"
+          "#{Cardio.config.relative_url_root}/#{rel_path}"
         end
       end
 
@@ -21,7 +21,7 @@ def card_url rel
       end
 
       def protocol_and_host
-        Card.config.protocol_and_host || "#{Env[:protocol]}#{Env[:host]}"
+        Cardio.config.protocol_and_host || "#{Env[:protocol]}#{Env[:host]}"
       end
 
       def cardname_from_url url
diff --git a/card/lib/card/env/request_assignments.rb b/card/lib/card/env/request_assignments.rb
index 0b9d78bb5d..93140ca406 100644
--- a/card/lib/card/env/request_assignments.rb
+++ b/card/lib/card/env/request_assignments.rb
@@ -13,11 +13,11 @@ def assign_html c
       end
 
       def assign_host c
-        Card.config.override_host || c.request.env["HTTP_HOST"]
+        Cardio.config.override_host || c.request.env["HTTP_HOST"]
       end
 
       def assign_protocol c
-        Card.config.override_protocol || c.request.protocol
+        Cardio.config.override_protocol || c.request.protocol
       end
     end
   end
diff --git a/card/lib/card/format.rb b/card/lib/card/format.rb
index 6baa2e5e8d..36820a41db 100644
--- a/card/lib/card/format.rb
+++ b/card/lib/card/format.rb
@@ -6,9 +6,9 @@ class Card
   # are responsible for defining and rendering _views_.
   #
   # However, monkeys (those who code in the Card/Decko framework) rarely write code
-  # directly in these classes. Instead they organize their code using {Card::Mod mods}.
+  # directly in these classes. Instead they organize their code using {Cardio::Mod mods}.
   #
-  # {Card::Mod} explains how to set up a mod.
+  # {Cardio::Mod} explains how to set up a mod.
   # {Card::Set::Format} explains how to use this and other format classes within a mod.
   # {Card::Set::Format::AbstractFormat} introduces the view API, which is organized with
   # these format classes.
diff --git a/card/lib/card/format/error.rb b/card/lib/card/format/error.rb
index 5309b61880..1802fbbb64 100644
--- a/card/lib/card/format/error.rb
+++ b/card/lib/card/format/error.rb
@@ -29,7 +29,7 @@ def view_for_denial view, task
       end
 
       def monitor_depth
-        raise Card::Error::UserError, tr(:too_deep) if depth >= Card.config.max_depth
+        raise Card::Error::UserError, tr(:too_deep) if depth >= Cardio.config.max_depth
         yield
       end
 
@@ -47,7 +47,7 @@ def error_cardname _exception
       end
 
       def loud_error?
-        focal? || Card.config.raise_all_rendering_errors
+        focal? || Cardio.config.raise_all_rendering_errors
       end
 
       def loud_error e, view
diff --git a/card/lib/card/format/nesting.rb b/card/lib/card/format/nesting.rb
index b56f9d377e..f0d0bdf4d2 100644
--- a/card/lib/card/format/nesting.rb
+++ b/card/lib/card/format/nesting.rb
@@ -63,11 +63,11 @@ def count_chars
       end
 
       def max_depth
-        Card.config.max_depth
+        Cardio.config.max_depth
       end
 
       def max_char_count
-        Card.config.max_char_count
+        Cardio.config.max_char_count
       end
     end
   end
diff --git a/card/lib/card/mailer.rb b/card/lib/card/mailer.rb
index 4fdd599a46..5541351fd0 100644
--- a/card/lib/card/mailer.rb
+++ b/card/lib/card/mailer.rb
@@ -4,7 +4,7 @@
 
 class Card
   class Mailer < ActionMailer::Base
-    @@defaults = Card.config.email_defaults || {}
+    @@defaults = Cardio.config.email_defaults || {}
     @@defaults.symbolize_keys!
     @@defaults[:return_path] ||= @@defaults[:from] if @@defaults[:from]
     @@defaults[:charset] ||= "utf-8"
diff --git a/card/lib/card/query/card_query.rb b/card/lib/card/query/card_query.rb
index 5b5779ab81..ec27981a17 100644
--- a/card/lib/card/query/card_query.rb
+++ b/card/lib/card/query/card_query.rb
@@ -37,7 +37,7 @@ def initialize statement, comment=nil
       end
 
       def default_comment
-        return if @superquery || !Card.config.sql_comments
+        return if @superquery || !Cardio.config.sql_comments
 
         statement.to_s
       end
diff --git a/card/lib/card/query/sql_statement.rb b/card/lib/card/query/sql_statement.rb
index 7c49796013..b2053ee9bb 100644
--- a/card/lib/card/query/sql_statement.rb
+++ b/card/lib/card/query/sql_statement.rb
@@ -50,7 +50,7 @@ def leading_space
       end
 
       def comment
-        return nil unless Card.config.sql_comments && @query.comment
+        return nil unless Cardio.config.sql_comments && @query.comment
 
         "/* #{@query.comment} */\n"
       end
diff --git a/card/lib/card/set.rb b/card/lib/card/set.rb
index b2b038dff2..bd1baaaf34 100644
--- a/card/lib/card/set.rb
+++ b/card/lib/card/set.rb
@@ -11,7 +11,7 @@ class Card
   # web interface and are thus documented at https://decko.org/rules.
   #  - **Code rules** can be defined in a 'set module'.
   #
-  # The {Card::Mod} docs explain how to create mods and set_modules. This page explains
+  # The {Cardio::Mod} docs explain how to create mods and set_modules. This page explains
   # how those modules become useful.
   #
   # Suppose you have created a "mod" for managing your contacts called "contactmanager",
diff --git a/card/lib/card/set/event.rb b/card/lib/card/set/event.rb
index eeb9639570..babdff5744 100644
--- a/card/lib/card/set/event.rb
+++ b/card/lib/card/set/event.rb
@@ -12,8 +12,8 @@ class Event
       # action has three phases, each phase has three stages, and each stage has many
       # events.
       #
-      # Events are defined in set modules in {Card::Mod **mods**}. Learn more about
-      # {Card::Mod set modules}.
+      # Events are defined in set modules in {Cardio::Mod **mods**}. Learn more about
+      # {Cardio::Mod set modules}.
       #
       # A simple event definition looks something like this:
       #
diff --git a/card/lib/card/set/format.rb b/card/lib/card/set/format.rb
index 6f5205584d..13044da5c7 100644
--- a/card/lib/card/set/format.rb
+++ b/card/lib/card/set/format.rb
@@ -2,8 +2,8 @@
 
 class Card
   module Set
-    # This document explains how to use format blocks within {Card::Mod mods}. To make
-    # use of it, you will need to understand both {Card::Mod mods} and {Card::Set sets}.
+    # This document explains how to use format blocks within {Cardio::Mod mods}. To make
+    # use of it, you will need to understand both {Cardio::Mod mods} and {Card::Set sets}.
     #
     # Within a card mod, you can define format blocks like the following:
     #
diff --git a/card/lib/card/set/format/abstract_format.rb b/card/lib/card/set/format/abstract_format.rb
index 1736e6bc26..d2797926e8 100644
--- a/card/lib/card/set/format/abstract_format.rb
+++ b/card/lib/card/set/format/abstract_format.rb
@@ -4,7 +4,7 @@ class Card
   module Set
     module Format
       # AbstractFormat manages the basic format API, including API to define a {#view}.
-      # Whenever you create a format block in a set module in a {Card::Mod mod}, you
+      # Whenever you create a format block in a set module in a {Cardio::Mod mod}, you
       # create a format module that is extended with AbstractFormat.
       module AbstractFormat
         include Set::Basket
diff --git a/card/lib/card/set/i18n_scope.rb b/card/lib/card/set/i18n_scope.rb
index de96e2c6c8..35871c33ed 100644
--- a/card/lib/card/set/i18n_scope.rb
+++ b/card/lib/card/set/i18n_scope.rb
@@ -72,7 +72,7 @@ def path_parts backtrace
       #
       #
       def tmp_files?
-        Card.config.load_strategy == :tmp_files
+        Cardio.config.load_strategy == :tmp_files
       end
 
       def find_set_path backtrace
diff --git a/card/lib/card/view/cache/cache_action.rb b/card/lib/card/view/cache/cache_action.rb
index d6900f9a27..204e0429a1 100644
--- a/card/lib/card/view/cache/cache_action.rb
+++ b/card/lib/card/view/cache/cache_action.rb
@@ -40,7 +40,7 @@ def cache_status
 
         # @return [True/False]
         def cache_on?
-          Card.config.view_cache && format.class.view_caching?
+          Cardio.config.view_cache && format.class.view_caching?
         end
 
         # always skip all the magic
diff --git a/card/lib/cardio.rb b/card/lib/cardio.rb
index e0b26e6942..85ee9adba0 100644
--- a/card/lib/cardio.rb
+++ b/card/lib/cardio.rb
@@ -7,7 +7,8 @@
 require "cardio/delaying"
 
 ActiveSupport.on_load :after_card do
-  Card::Mod.load
+  #require 'cardio/mod' # should autoload
+  Cardio::Mod.load
 end
 
 module Cardio
@@ -17,11 +18,37 @@ module Cardio
   extend Delaying
   CARD_GEM_ROOT = File.expand_path("..", __dir__)
 
-  mattr_reader :paths, :config
+  module RailsConfigMethods
+    # FIXME: use in Deck, Engine, etc.
+    def root
+      Rails.root
+    end
+
+    def application
+       Rails.application
+    end
+
+    def config
+       application.config
+    end
+
+    def paths
+       application.paths
+    end
+  end
 
   class << self
+    include RailsConfigMethods
+
+    def gem_root
+      CARD_GEM_ROOT
+    end
+
     def card_defined?
-      const_defined? "Card"
+      if const_defined? "Card"
+        raise "Wrong Card" unless Card.is_a? ApplicationRecord
+        true
+      end
     end
 
     def load_card?
@@ -30,17 +57,12 @@ def load_card?
       false
     end
 
-    def load_card!
-      require "card"
-      ActiveSupport.run_load_hooks :after_card
-    end
-
     def cache
       @cache ||= ::Rails.cache
     end
 
     def default_configs
-      {
+      defaults = {
         read_only: read_only?,
 
         # if you disable inline styles tinymce's formatting options stop working
@@ -80,6 +102,7 @@ def default_configs
         request_logger: false,
         performance_logger: false,
         sql_comments: true,
+        eager_load: false,
 
         file_storage: :local,
         file_buckets: {},
@@ -101,35 +124,28 @@ def default_configs
         load_strategy: :eval,
         cache_set_module_list: false
       }
-    end
-
-    def set_config config
-      @@config = config
-
-      add_lib_dirs_to_autoload_paths config
-
-      default_configs.each_pair do |setting, value|
-        set_default_value(config, setting, *value)
+      cfg = config
+      defaults.each_pair do |setting, value|
+        # so don't change settings here if they already exist
+        cfg.send("#{setting}=", *value) unless cfg.respond_to?(setting) &&
+                                               !cf.send(setting.nil?)
       end
     end
 
-    def add_lib_dirs_to_autoload_paths config
+    def add_lib_dirs_to_autoload_paths
       config.autoload_paths += Dir["#{gem_root}/lib"]
 
       # TODO: this should use each_mod_path, but it's not available when this is run
       # This means libs will not get autoloaded (and sets not watched) if the mod
       # dir location is overridden in config
-      [gem_root, root].each { |dir| autoload_and_watch config, "#{dir}/mod/*" }
-      gem_mod_specs.each_value { |spec| autoload_and_watch config, spec.full_gem_path }
+      [gem_root, root].each { |dir| autoload_and_watch "#{dir}/mod/*" }
+      gem_mod_specs.each_value { |spec| autoload_and_watch spec.full_gem_path }
 
       # the watchable_dirs are processes in
       # set_clear_dependencies_hook hook in the railties gem in finisher.rb
-
-      # TODO: move this to the right place in decko
-      config.autoload_paths += Dir["#{Decko.gem_root}/lib"]
     end
 
-    def autoload_and_watch config, mod_path
+    def autoload_and_watch mod_path
       config.autoload_paths += Dir["#{mod_path}/lib"]
       config.watchable_dirs["#{mod_path}/set"] = [:rb]
     end
@@ -138,17 +154,9 @@ def read_only?
       !ENV["DECKO_READ_ONLY"].nil?
     end
 
-    # In production mode set_config gets called twice.
-    # The second call overrides all deck config settings
-    # so don't change settings here if they already exist
-    def set_default_value config, setting, *value
-      config.send("#{setting}=", *value) unless config.respond_to? setting
-    end
-
-    def set_paths paths
-      @@paths = paths
+    def paths_init
       %w[set set_pattern].each do |path|
-        tmppath = "tmp/#{path}"
+        tmppath = File.join("tmp", path)
         add_path tmppath, root: root unless paths[tmppath]&.existent
       end
 
@@ -160,6 +168,59 @@ def set_paths paths
       add_mod_initializer_paths
     end
 
+    def future_stamp
+      # # used in test data
+      @future_stamp ||= Time.zone.local 2020, 1, 1, 0, 0, 0
+    end
+
+    def load_card_environment
+      add_lib_dirs_to_autoload_paths
+      default_configs
+      paths_init
+      add_configs
+
+      ActiveSupport.run_load_hooks(:before_configuration)
+      ActiveSupport.run_load_hooks(:load_active_record)
+      ActiveSupport.run_load_hooks(:before_card)
+
+      add_path "lib/card/config/environments", glob: "#{Rails.env}.rb", root: Cardio.gem_root
+    end
+
+    def load_rails_environment
+      paths["lib/card/config/environments"].existent.each do |environment|
+        require environment
+      end
+    end
+
+    def connect_on_load
+      ActiveSupport.on_load(:before_configure_environment) do
+        ActiveRecord::Base.establish_connection(::Rails.env.to_sym)
+      end
+      ActiveSupport.on_load(:after_initialize) do
+      end
+      ActiveSupport.on_load(:after_application_record) do
+        #ActiveSupport.run_load_hooks :initialize, self
+      end
+    end
+
+    def add_configs
+
+      # should get from class that include Cardio::App (Decko)
+      #config.autoloader = :zeitwerk
+      #config.load_default = "6.0"
+      #config.i18n.enforce_available_locales = true
+
+      Rails.autoloaders.log!
+     # Rails.autoloaders.main.ignore(File.join(Cardio.gem_root, "lib/card/seed_consts.rb"))
+    end
+  private
+
+    def add_path path, options={}
+      root = options.delete(:root) || Cardio.gem_root
+      options[:with] = File.join(root, (options[:with] || path))
+      paths.add path, options
+    end
+
     def add_db_paths
       add_path "db"
       add_path "db/migrate"
@@ -186,24 +247,5 @@ def add_initializers base_dir, mod=false, init_dir="initializers"
         paths[path_mark] << initializers_dir
       end
     end
-
-    def root
-      @@config.root
-    end
-
-    def gem_root
-      CARD_GEM_ROOT
-    end
-
-    def add_path path, options={}
-      root = options.delete(:root) || gem_root
-      options[:with] = File.join(root, (options[:with] || path))
-      paths.add path, options
-    end
-
-    def future_stamp
-      # # used in test data
-      @future_stamp ||= Time.zone.local 2020, 1, 1, 0, 0, 0
-    end
   end
 end
diff --git a/card/lib/cardio/application.rb b/card/lib/cardio/application.rb
new file mode 100644
index 0000000000..dbcd91f633
--- /dev/null
+++ b/card/lib/cardio/application.rb
@@ -0,0 +1,86 @@
+# -*- encoding : utf-8 -*-
+
+require 'rails'
+
+Bundler.require :default, *Rails.groups if defined?(Bundler)
+
+module Cardio
+  class Application < Rails::Application
+    class << self
+      def inherited base
+        super
+        Rails.app_class = base
+        add_lib_to_load_path!(find_root(base.called_from))
+        ActiveSupport.run_load_hooks(:before_configuration, base.instance)
+        ActiveSupport.run_load_hooks(:load_active_record, base.instance)
+        ActiveSupport.run_load_hooks(:before_card)
+      end
+    end
+
+    initializer :load_card_environment_config,
+                #after: :bootstrap, group: :all do
+                before: :load_environment_config, group: :all do
+                #before: :connect_on_load, group: :all do
+      add_path "lib/card/config/environments", glob: "#{Rails.env}.rb", root: Cardio.gem_root
+      paths["lib/card/config/environments"].existent.each do |environment|
+        require environment
+      end
+    end
+
+    initializer :connect_on_load do
+      ActiveSupport.on_load(:active_record) do
+        c=ActiveRecord::Base.establish_connection(::Rails.env.to_sym)
+        ActiveSupport.run_load_hooks(:before_card)
+      end
+      # ActiveSupport.on_load(:after_initialize) do
+      #   # require "card" if Cardio.load_card?
+      #   Card if Cardio.load_card?
+      # rescue ActiveRecord::StatementInvalid => e
+      #  ::Rails.logger.warn "database not available[#{::Rails.env}] #{e}"
+      # end
+      ActiveSupport.on_load(:before_card) do
+      end
+      ActiveSupport.on_load(:after_application_record) do
+        Cardio.load_card!
+      end
+    end
+
+    def configure &block
+      super do
+        instance_eval &block if block_given?
+
+        config.load_default = "6.0"
+        Cardio.load_card_environment
+        #Cardio.set_config
+        #Cardio.set_paths paths
+
+        #config.autoloader = :zeitwerk # included in "6.0"
+        config.i18n.enforce_available_locales = true # maybe this too
+      end
+    end
+
+    initializer :load_card_config,
+                before: :load_environment_config, group: :all do
+      #Cardio.load_card_environment
+    end
+
+    initializer :load_card_config_initializers,
+                after: :load_card_config, group: :all do
+      Cardio.load_rails_environment
+      paths["config/initializers"].existent.sort.each do |initializer|
+        load(initializer)
+      end
+      Cardio.connect_on_load
+    end
+
+    def root_path_option options
+      options.delete(:root) || Cardio.gem_root
+    end
+
+    def add_path path, options={}
+      root = root_path_option options
+      options[:with] = File.join(root, (options[:with] || path))
+      paths.add path, options
+    end
+  end
+end
diff --git a/card/lib/cardio/cli.rb b/card/lib/cardio/cli.rb
new file mode 100644
index 0000000000..04dbeddf39
--- /dev/null
+++ b/card/lib/cardio/cli.rb
@@ -0,0 +1,4 @@
+require "rbconfig"
+require "pathname"
+
+require "cardio/commands/application"
diff --git a/card/lib/cardio/commands.rb b/card/lib/cardio/commands.rb
new file mode 100644
index 0000000000..6ae43356f6
--- /dev/null
+++ b/card/lib/cardio/commands.rb
@@ -0,0 +1,90 @@
+# add method in? to Object class
+require "active_support/core_ext/object/inclusion"
+require "cardio"
+
+module Cardio
+  module Commands
+
+    CARD_TASK_COMMANDS = %w(card add add_remote refresh_machine_output
+                         reset_cache reset_tmp update merge merge_all
+                         assume_card_migrations clean clear dump emergency
+                         load seed reseed supplement update seed reseed
+                         load update).freeze
+
+    module ClassMethods
+      def run_rspec
+        require "cardio/commands/rspec_command"
+        RspecCommand.new(ARGV).run
+      end
+
+      def run_task command
+        load_rake_tasks
+        require "cardio/commands/application"
+        require "cardio/commands/rake_command"
+        RakeCommand.new(['card', command]*':', ARGV).run
+      end
+
+      def load_rake_tasks
+        require "rake"
+        require "./config/environment"
+        Cardio::Application.load_tasks
+      end
+    end
+
+    class << self
+      include ClassMethods
+    end
+  end
+end
+
+ARGV << "--help" if ARGV.empty?
+
+ARGV.unshift 'card' if ARGV.first == '-T'
+command = ARGV.first
+#FIXME: how to use DECK aliases? maybe they need to be here?
+#command = ALIAS[command] || command
+
+ARGV.shift
+lookup = command
+lookup = $1 if command =~ /^([^:]+):/
+
+case lookup
+when "--version", "-v"
+  puts "Card #{Card::Version.release}"
+when 'rspec'
+  Cardio::Commands.run_rspec
+when *Cardio::Commands::CARD_TASK_COMMANDS
+  Cardio::Commands.run_task command
+else
+  puts "Error: Command not recognized" unless command.in?(["-h", "--help"])
+  # FIXME: give mostly card help, card -T to list, rspec, etc. reference decko
+  puts <<-EOT
+  Usage: card COMMAND [ARGS]
+
+  The most common card commands are: (customized from rails?)
+     seed        Create and seed the database specified in config/database.yml
+
+     server      Start the Rails server (short-cut alias: "s")
+     console     Start the Rails console (short-cut alias: "c")
+     dbconsole   Start a console for the database specified in config/database.yml
+               (short-cut alias: "db")
+
+    For core developers
+     rspec        Run rspec tests (short-cut alias: "rs")
+     update       Run card migrations
+     load         Load bootstrap data into database
+
+    In addition to those, there are the standard rails commands:
+     generate     Generate new code (short-cut alias: "g")
+     application  Generate the Rails application code
+     destroy      Undo code generated with "generate" (short-cut alias: "d")
+     benchmarker  See how fast a piece of code runs
+     profiler     Get profile information from a piece of code
+     plugin       Install a plugin
+     runner       Run a piece of code in the application environment (short-cut alias: "r")
+
+    All commands can be run with -h (or --help) for more information.
+  EOT
+
+  exit(1)
+end
diff --git a/card/lib/cardio/commands/application.rb b/card/lib/cardio/commands/application.rb
new file mode 100644
index 0000000000..d43ae89a8b
--- /dev/null
+++ b/card/lib/cardio/commands/application.rb
@@ -0,0 +1,14 @@
+# -*- encoding : utf-8 -*-
+
+# no card generator new templates
+require "generators/card"
+
+if ARGV.first != "new"
+  #ARGV[0] = "--help"
+else
+  cmd = ARGV.shift
+end
+
+require "cardio/commands"
+
+Cardio::Commands.run_new
diff --git a/card/lib/cardio/commands/command.rb b/card/lib/cardio/commands/command.rb
new file mode 100644
index 0000000000..c79ed6bfc3
--- /dev/null
+++ b/card/lib/cardio/commands/command.rb
@@ -0,0 +1,29 @@
+
+# require "English" # needed for CHILD_STATUS, but not sure this is the best place for this.
+
+module Cardio
+  module Commands
+    class Command
+      def run
+        puts command
+        exit_with_child_status command
+      end
+
+      def exit_with_child_status command
+        command += " 2>&1"
+        exit $CHILD_STATUS.exitstatus unless system command
+      end
+
+      # split special decko args and original command args separated by '--'
+      def split_args args
+        before_split = true
+        decko_args, command_args =
+          args.partition do |a|
+            before_split = (a == "--" ? false : before_split)
+          end
+        command_args.shift
+        [decko_args, command_args]
+      end
+    end
+  end
+end
diff --git a/card/lib/cardio/commands/command/parser.rb b/card/lib/cardio/commands/command/parser.rb
new file mode 100644
index 0000000000..ffef5f82b5
--- /dev/null
+++ b/card/lib/cardio/commands/command/parser.rb
@@ -0,0 +1,37 @@
+# -*- encoding : utf-8 -*-
+require "optparse"
+
+module Cardio
+  module Commands
+    class Command
+      class Parser
+        USAGE_MESSAGE = <<-EOT
+            card new
+        EOT
+
+        def initialize
+          @args = []
+          @options = {}
+        end
+        # move to command/parser.rb
+        attr_reader :options, :args
+
+        def parse args
+          # The options specified on the command line will be collected in
+          # *options*.
+
+          @options = self.class.new
+          @args = OptionParser.new do |parser|
+            @options.define_options parser  # load self.options (super too)
+            parser.parse! args              # do the parse and set self.args
+          end
+          @options
+        end
+
+        def define_options parser
+        end
+
+      end
+    end
+  end
+end
diff --git a/card/lib/cardio/commands/rake_command.rb b/card/lib/cardio/commands/rake_command.rb
new file mode 100644
index 0000000000..60d0caed17
--- /dev/null
+++ b/card/lib/cardio/commands/rake_command.rb
@@ -0,0 +1,40 @@
+require "cardio/commands/command"
+
+module Cardio
+  module Commands
+    class RakeCommand < Command
+      def initialize rake_task, args={}
+        @task = rake_task
+        opts = {}
+        if args.is_a? Array
+          Parser.new(rake_task, opts).parse!(args)
+        else
+          opts = args
+        end
+        @envs = Array(opts[:envs])
+      end
+
+      def run
+        commands.each do |cmd|
+          puts cmd
+          # exit_with_child_status cmd
+
+          result = `#{cmd}`
+          process = $?
+          puts result
+          exit process.exitstatus unless process.success?
+        end
+      end
+
+      def commands
+        task_cmd = "bundle exec rake #{@task}"
+        return [task_cmd] if !@envs || @envs.empty?
+        @envs.map do |env|
+          "env RAILS_ENV=#{env} #{task_cmd}"
+        end
+      end
+    end
+  end
+end
+
+require "cardio/commands/rake_command/parser"
diff --git a/decko/lib/decko/commands/rake_command/parser.rb b/card/lib/cardio/commands/rake_command/parser.rb
similarity index 86%
rename from decko/lib/decko/commands/rake_command/parser.rb
rename to card/lib/cardio/commands/rake_command/parser.rb
index 8997b4a293..5a1be058f4 100644
--- a/decko/lib/decko/commands/rake_command/parser.rb
+++ b/card/lib/cardio/commands/rake_command/parser.rb
@@ -1,14 +1,14 @@
 # -*- encoding : utf-8 -*-
 require "optparse"
 
-module Decko
+module Cardio
   module Commands
     class RakeCommand
       class Parser < OptionParser
         def initialize command, opts
           super() do |parser|
-            parser.banner = "Usage: decko #{command} [options]\n\n" \
-                          "Run decko:#{command} task on the production "\
+            parser.banner = "Usage: card #{command} [options]\n\n" \
+                          "Run card:#{command} task on the production "\
                           " database specified in config/database.yml\n\n"
             parser.on("--production", "-p",
                       "#{command} production database (default)") do
diff --git a/card/lib/cardio/commands/rspec_command.rb b/card/lib/cardio/commands/rspec_command.rb
new file mode 100644
index 0000000000..5ef760c491
--- /dev/null
+++ b/card/lib/cardio/commands/rspec_command.rb
@@ -0,0 +1,94 @@
+require File.expand_path("../command", __FILE__)
+
+module Cardio
+  module Commands
+    class RspecCommand < Command
+      def initialize args
+        require "rspec/core"
+
+        @opts = RspecCommand::Parser.new.parse(ARGV).options
+        @rspec_args, @cmd_args =
+          if ARGV.include?('--')
+            split_args(ARGV)
+          else
+            [[], ARGV]
+          end
+      end
+
+      def command
+c=
+        "#{env_args} #{@opts[:executer]} #{@opts[:rescue]}" \
+          "rspec #{@rspec_args.shelljoin} #{spec_files_from_opts(@opts)*' '} "\
+          "--exclude-pattern \"./card/vendor/**/*\""
+      end
+
+      private
+
+      def env_args
+        ["RAILS_ROOT=.", coverage].compact.join " "
+      end
+
+      def has_specs?
+        @opts[:mod_items]&.any? ||
+          @opts[:deck_items]&.any? ||
+          @opts[:card_items]&.any?
+      end
+
+      def coverage
+        # no coverage if rspec was started with file argument
+        if (has_specs? || @rspec_args.any?) && !@opts[:simplecov]
+          @opts[:simplecov] = "COVERAGE=false"
+        end
+        @opts[:simplecov]
+      end
+
+      def spec_files_from_opts opts
+        find_mod_specs(opts[:mod_items]) +
+        find_deck_specs(opts[:deck_items]) +
+        find_core_specs(opts[:core_items])
+      end
+      def find_mods mods, base_dir
+        #def find_mod_file filename, base_dir
+        mods.map do |modname|
+          if File.exist?("mod/#{modname}") || File.exist?("#{base_dir}/mod/#{modname}")
+            "#{base_dir}/mod/#{filename}"
+          elsif (files = find_tests(filename, "mod"))&.present?
+            files
+          else
+            find_spec_file(file, "#{base_dir}/mod")
+          end
+        end
+      end
+ 
+      def find_tests names, base_dir
+        #def find_spec_file filename, base_dir
+        names.map do |filename|
+          file, line = filename.split(":")
+          if file.include?("_spec.rb") && File.exist?(file)
+            filename
+          else
+            file = File.basename(file, ".rb").sub(/_spec$/, "")
+            Dir.glob("#{base_dir}/**/#{file}_spec.rb").flatten.map do |spec_file|
+              line ? "#{spec_file}:#{line}" : file
+            end.join(" ")
+          end
+        end
+      end
+
+      def find_mod_specs mods
+        []
+      end
+
+      def find_deck_specs files
+        #find_tests files, basedir
+        []
+      end
+
+      def find_core_specs files
+        []
+      end
+    end
+  end
+end
+
+require File.expand_path("../rspec_command/parser", __FILE__)
diff --git a/card/lib/cardio/commands/rspec_command/parser.rb b/card/lib/cardio/commands/rspec_command/parser.rb
new file mode 100644
index 0000000000..ab3edbbf1a
--- /dev/null
+++ b/card/lib/cardio/commands/rspec_command/parser.rb
@@ -0,0 +1,101 @@
+# -*- encoding : utf-8 -*-
+require "optparse"
+require 'cardio/commands/command/parser'
+
+module Cardio
+  module Commands
+    class RspecCommand < Command
+      class Parser < Command::Parser
+        RSPEC_PATH_MESSAGE = <<-EOT
+
+            {cmdname.upcase} ARGS
+
+            You don't have to give a full path for FILENAME; the basename is enough.
+            If FILENAME does not include '_spec', then rspec searches for the
+            corresponding spec file.
+            The line number always refers to the example in the spec file.
+
+        EOT
+
+        RSPEC_USAGE_MESSAGE = <<-EOT
+            card rspec
+             -d --deck-spec FILENAME(:LINE)  # Run spec for a Decko spec
+             -c --core-spec FILENAME(:LINE)  # Run spec for a Card core spec
+             -m --mod MODNAME                # Run all specs for a mod 
+             -s --[no-]simplecov             # Run with simplecov
+                --rescue                     # Run with pry-rescue
+                --[no]-spring                # Run with spring
+        EOT
+
+        def define_options parser
+          super # define common options from parent class
+          cmdname = $0
+          cmdname = $1 if cmdname =~ /\/([^\/]+)$/
+          parser.banner = "Usage: #{cmdname} rspec [#{cmdname.upcase} ARGS] -- [RSPEC ARGS]\n\n" \
+                            "RSPEC ARGS"
+          parser.separator RSPEC_USAGE_MESSAGE
+          parser.separator RSPEC_PATH_MESSAGE
+
+          # can you run decko specs in card? doesn't seem right
+          parser.on("-d", "--deck-spec [FILENAME(:LINE)]",
+                    "Run spec for a Card deck file") do |file|
+            add_tests file, :deck_items
+          end
+          parser.on("-c", "--core-spec [FILENAME(:LINE)]",
+                    "Run spec for a Card core file") do |file|
+            add_tests file, :core_items
+          end
+          parser.on("-m", "--mod [MODNAME]",
+                    "Run all specs for a mod or matching a mod") do |mod|
+            add_tests mod, :mod_items
+          end
+          parser.on("-s", "--[no-]simplecov", "Run with simplecov") do |s|
+            options[:simplecov] = s ? "" : "COVERAGE=false"
+          end
+          parser.on("--rescue", "Run with pry-rescue") do
+            process_rescue_opts opts
+          end
+          parser.on("--[no-]spring", "Run with spring") do |spring|
+            process_spring_opts spring, opts
+          end
+          parser.on_tail("[LIST]") do |list|
+            add_tests(list, :core_items)
+          end
+          parser.separator "\n"
+        end
+
+      private
+
+        def add_tests item, kind=:core_items
+          item ||= :all
+          o = options[kind] ||= []
+          if options[kind].include?(:all)
+            warn 'multiple #{kind} with "all"'
+          else
+            o <<= item
+          end
+        end
+
+        def process_rescue_opts opts
+          if options[:executer] == "spring"
+            puts "Disabled pry-rescue. Not compatible with spring."
+          else
+            options[:rescue] = "rescue "
+          end
+        end
+
+        def process_spring_opts spring, opts
+          if spring
+            options[:executer] = "spring"
+            if options[:rescue]
+              options[:rescue] = ""
+              puts "Disabled pry-rescue. Not compatible with spring."
+            end
+          else
+            options[:executer] = "bundle exec"
+          end
+        end
+      end
+    end
+  end
+end
diff --git a/decko/lib/decko/config/initializers/sedate_parser.rb b/card/lib/cardio/config/initializers/sedate_parser.rb
similarity index 100%
rename from decko/lib/decko/config/initializers/sedate_parser.rb
rename to card/lib/cardio/config/initializers/sedate_parser.rb
diff --git a/card/lib/card/mod.rb b/card/lib/cardio/mod.rb
similarity index 96%
rename from card/lib/card/mod.rb
rename to card/lib/cardio/mod.rb
index c5a1b8d561..8dcc9e9a0e 100644
--- a/card/lib/card/mod.rb
+++ b/card/lib/cardio/mod.rb
@@ -67,7 +67,7 @@ def load
         return if ENV["CARD_MODS"] == "none"
 
         if Card.take
-          Card::Mod::Loader.load_mods
+          Cardio::Mod::Loader.load_mods
         else
           Rails.logger.warn "empty database"
         end
@@ -75,7 +75,7 @@ def load
 
       # @return an array of Rails::Path objects
       def dirs
-        @dirs ||= Mod::Dirs.new(Card.paths["mod"].existent)
+        @dirs ||= Mod::Dirs.new(Cardio.paths["mod"].existent)
       end
 
       def dependencies name, nickname=true
diff --git a/card/lib/card/mod/dirs.rb b/card/lib/cardio/mod/dirs.rb
similarity index 98%
rename from card/lib/card/mod/dirs.rb
rename to card/lib/cardio/mod/dirs.rb
index cc6971c75f..66a3f56944 100644
--- a/card/lib/card/mod/dirs.rb
+++ b/card/lib/cardio/mod/dirs.rb
@@ -173,7 +173,7 @@ def load_from_gemfile
 
       def tmp_dir modname, type
         index = @mods.index modname
-        File.join Card.paths["tmp/#{type}"].first,
+        File.join Cardio.paths["tmp/#{type}"].first,
                   "mod#{'%03d' % (index + 1)}-#{modname}"
       end
     end
diff --git a/card/lib/card/mod/load_strategy.rb b/card/lib/cardio/mod/load_strategy.rb
similarity index 100%
rename from card/lib/card/mod/load_strategy.rb
rename to card/lib/cardio/mod/load_strategy.rb
diff --git a/card/lib/card/mod/load_strategy/eval.rb b/card/lib/cardio/mod/load_strategy/eval.rb
similarity index 100%
rename from card/lib/card/mod/load_strategy/eval.rb
rename to card/lib/cardio/mod/load_strategy/eval.rb
diff --git a/card/lib/card/mod/load_strategy/pattern_tmp_files.rb b/card/lib/cardio/mod/load_strategy/pattern_tmp_files.rb
similarity index 93%
rename from card/lib/card/mod/load_strategy/pattern_tmp_files.rb
rename to card/lib/cardio/mod/load_strategy/pattern_tmp_files.rb
index ac2dd054bf..35c195a2f2 100644
--- a/card/lib/card/mod/load_strategy/pattern_tmp_files.rb
+++ b/card/lib/cardio/mod/load_strategy/pattern_tmp_files.rb
@@ -21,7 +21,7 @@ def load_tmp_files
         end
 
         def tmp_dir
-          Card.paths["tmp/set_pattern"].first
+          Cardio.paths["tmp/set_pattern"].first
         end
       end
     end
diff --git a/card/lib/card/mod/load_strategy/set_binding_magic.rb b/card/lib/cardio/mod/load_strategy/set_binding_magic.rb
similarity index 100%
rename from card/lib/card/mod/load_strategy/set_binding_magic.rb
rename to card/lib/cardio/mod/load_strategy/set_binding_magic.rb
diff --git a/card/lib/card/mod/load_strategy/set_tmp_files.rb b/card/lib/cardio/mod/load_strategy/set_tmp_files.rb
similarity index 100%
rename from card/lib/card/mod/load_strategy/set_tmp_files.rb
rename to card/lib/cardio/mod/load_strategy/set_tmp_files.rb
diff --git a/card/lib/card/mod/load_strategy/tmp_files.rb b/card/lib/cardio/mod/load_strategy/tmp_files.rb
similarity index 92%
rename from card/lib/card/mod/load_strategy/tmp_files.rb
rename to card/lib/cardio/mod/load_strategy/tmp_files.rb
index 7385d76d4f..aa52083419 100644
--- a/card/lib/card/mod/load_strategy/tmp_files.rb
+++ b/card/lib/cardio/mod/load_strategy/tmp_files.rb
@@ -18,7 +18,7 @@ def clean_comments?
         def prepare_tmp_dir path
           return unless rewrite_tmp_files?
 
-          p = Card.paths[path]
+          p = Cardio.paths[path]
           FileUtils.rm_rf p.first, secure: true if p.existent.first
           Dir.mkdir p.first
         end
@@ -28,7 +28,7 @@ def rewrite_tmp_files?
             @rewrite
           else
             @rewrite = !(Rails.env.production? &&
-              Card.paths["tmp/set"].existent.first)
+              Cardio.paths["tmp/set"].existent.first)
           end
         end
 
diff --git a/card/lib/card/mod/loader.rb b/card/lib/cardio/mod/loader.rb
similarity index 86%
rename from card/lib/card/mod/loader.rb
rename to card/lib/cardio/mod/loader.rb
index 2452b2407a..2b80122aeb 100644
--- a/card/lib/card/mod/loader.rb
+++ b/card/lib/cardio/mod/loader.rb
@@ -2,7 +2,7 @@
 
 class Card
   module Mod
-    # Card::Mod::Loader is used to load all part of a mod,
+    # Cardio::Mod::Loader is used to load all part of a mod,
     # i.e. initializers, patterns, formats, chunks, layouts and sets
     # cards are not accessible at this point
 
@@ -36,8 +36,8 @@ class << self
 
         def load_mods
           load_formats
-          Card::Mod::Loader::SetPatternLoader.new.load
-          Card::Mod::Loader::SetLoader.new.load
+          Cardio::Mod::Loader::SetPatternLoader.new.load
+          Cardio::Mod::Loader::SetLoader.new.load
           Card::Set.process_base_modules
           load_initializers
         end
@@ -45,8 +45,8 @@ def load_mods
         def reload_sets
           Card::Set::Pattern.reset
           Card::Set.reset_modules
-          Card::Mod::Loader::SetPatternLoader.new.load
-          Card::Mod::Loader::SetLoader.new(
+          Cardio::Mod::Loader::SetPatternLoader.new.load
+          Cardio::Mod::Loader::SetLoader.new(
             patterns: Card::Set::Pattern.nonbase_loadable_codes
           ).load
         end
@@ -64,7 +64,7 @@ def module_class_template
         # private
 
         def load_initializers
-          Card.config.paths["mod/config/initializers"].existent.sort.each do |initializer|
+          Cardio.config["mod/config/initializers"].existent.sort.each do |initializer|
             load initializer
           end
         end
diff --git a/card/lib/card/mod/loader/set_loader.rb b/card/lib/cardio/mod/loader/set_loader.rb
similarity index 100%
rename from card/lib/card/mod/loader/set_loader.rb
rename to card/lib/cardio/mod/loader/set_loader.rb
diff --git a/card/lib/card/mod/loader/set_pattern_loader.rb b/card/lib/cardio/mod/loader/set_pattern_loader.rb
similarity index 100%
rename from card/lib/card/mod/loader/set_pattern_loader.rb
rename to card/lib/cardio/mod/loader/set_pattern_loader.rb
diff --git a/card/lib/card/mod/module_template.rb b/card/lib/cardio/mod/module_template.rb
similarity index 100%
rename from card/lib/card/mod/module_template.rb
rename to card/lib/cardio/mod/module_template.rb
diff --git a/card/lib/cardio/modfiles.rb b/card/lib/cardio/modfiles.rb
index b5d8f0d474..1a551e4185 100644
--- a/card/lib/cardio/modfiles.rb
+++ b/card/lib/cardio/modfiles.rb
@@ -36,7 +36,7 @@ def each_gem_mod_path
 
     def mod_migration_paths dir
       [].tap do |list|
-        Card::Mod.dirs.each("db/#{dir}") { |path| list.concat Dir.glob path }
+        Cardio::Mod.dirs.each("db/#{dir}") { |path| list.concat Dir.glob path }
       end
     end
   end
diff --git a/card/lib/card/tasks/card.rake b/card/lib/tasks/card.rake
similarity index 100%
rename from card/lib/card/tasks/card.rake
rename to card/lib/tasks/card.rake
diff --git a/card/lib/card/tasks/card/file_card_creator.rb b/card/lib/tasks/card/file_card_creator.rb
similarity index 100%
rename from card/lib/card/tasks/card/file_card_creator.rb
rename to card/lib/tasks/card/file_card_creator.rb
diff --git a/card/lib/card/tasks/card/file_card_creator/abstract_file_card.rb b/card/lib/tasks/card/file_card_creator/abstract_file_card.rb
similarity index 100%
rename from card/lib/card/tasks/card/file_card_creator/abstract_file_card.rb
rename to card/lib/tasks/card/file_card_creator/abstract_file_card.rb
diff --git a/card/lib/card/tasks/card/file_card_creator/abstract_file_card/migration_file.rb b/card/lib/tasks/card/file_card_creator/abstract_file_card/migration_file.rb
similarity index 100%
rename from card/lib/card/tasks/card/file_card_creator/abstract_file_card/migration_file.rb
rename to card/lib/tasks/card/file_card_creator/abstract_file_card/migration_file.rb
diff --git a/card/lib/card/tasks/card/file_card_creator/abstract_file_card/ruby_file.rb b/card/lib/tasks/card/file_card_creator/abstract_file_card/ruby_file.rb
similarity index 100%
rename from card/lib/card/tasks/card/file_card_creator/abstract_file_card/ruby_file.rb
rename to card/lib/tasks/card/file_card_creator/abstract_file_card/ruby_file.rb
diff --git a/card/lib/card/tasks/card/file_card_creator/abstract_file_card/source_file.rb b/card/lib/tasks/card/file_card_creator/abstract_file_card/source_file.rb
similarity index 100%
rename from card/lib/card/tasks/card/file_card_creator/abstract_file_card/source_file.rb
rename to card/lib/tasks/card/file_card_creator/abstract_file_card/source_file.rb
diff --git a/card/lib/card/tasks/card/file_card_creator/haml_card.rb b/card/lib/tasks/card/file_card_creator/haml_card.rb
similarity index 100%
rename from card/lib/card/tasks/card/file_card_creator/haml_card.rb
rename to card/lib/tasks/card/file_card_creator/haml_card.rb
diff --git a/card/lib/card/tasks/card/file_card_creator/output_helper.rb b/card/lib/tasks/card/file_card_creator/output_helper.rb
similarity index 100%
rename from card/lib/card/tasks/card/file_card_creator/output_helper.rb
rename to card/lib/tasks/card/file_card_creator/output_helper.rb
diff --git a/card/lib/card/tasks/card/file_card_creator/script_card.rb b/card/lib/tasks/card/file_card_creator/script_card.rb
similarity index 100%
rename from card/lib/card/tasks/card/file_card_creator/script_card.rb
rename to card/lib/tasks/card/file_card_creator/script_card.rb
diff --git a/card/lib/card/tasks/card/file_card_creator/style_card.rb b/card/lib/tasks/card/file_card_creator/style_card.rb
similarity index 100%
rename from card/lib/card/tasks/card/file_card_creator/style_card.rb
rename to card/lib/tasks/card/file_card_creator/style_card.rb
diff --git a/card/lib/card/tasks/card/create.rake b/card/lib/tasks/create.rake
similarity index 100%
rename from card/lib/card/tasks/card/create.rake
rename to card/lib/tasks/create.rake
diff --git a/decko/lib/decko/tasks/db.rake b/card/lib/tasks/db.rake
similarity index 100%
rename from decko/lib/decko/tasks/db.rake
rename to card/lib/tasks/db.rake
diff --git a/card/lib/card/tasks/card/migrate.rake b/card/lib/tasks/migrate.rake
similarity index 98%
rename from card/lib/card/tasks/card/migrate.rake
rename to card/lib/tasks/migrate.rake
index 571f4eb108..f177f852e9 100644
--- a/card/lib/card/tasks/card/migrate.rake
+++ b/card/lib/tasks/migrate.rake
@@ -8,7 +8,7 @@ def prepare_migration
   Card::Cache.reset_all
   ENV["SCHEMA"] ||= "#{Cardio.gem_root}/db/schema.rb"
   Card::Cache.reset_all
-  Card.config.action_mailer.perform_deliveries = false
+  Cardio.config.action_mailer.perform_deliveries = false
   Card.reset_column_information
   # this is needed in production mode to insure core db
   Card::Reference.reset_column_information
diff --git a/decko/lib/decko/tasks/decko/seed.rake b/card/lib/tasks/seed.rake
similarity index 100%
rename from decko/lib/decko/tasks/decko/seed.rake
rename to card/lib/tasks/seed.rake
diff --git a/card/mod/admin/set/self/admin.rb b/card/mod/admin/set/self/admin.rb
index 9b881bb813..1d34e0ad5c 100644
--- a/card/mod/admin/set/self/admin.rb
+++ b/card/mod/admin/set/self/admin.rb
@@ -79,7 +79,7 @@ def cache_stats
         link_text: "clear machine cache",
         task: "clear_machine_cache" }
     ]
-    # return stats unless Card.config.view_cache#
+    # return stats unless Cardio.config.view_cache#
     # stats << { title: "view cache",
     #            count: Card::View,
     #            link_text: "clear view cache",
diff --git a/card/mod/admin/set/self/admin_info.rb b/card/mod/admin/set/self/admin_info.rb
index e2d2bf82d1..0d80c08fe1 100644
--- a/card/mod/admin/set/self/admin_info.rb
+++ b/card/mod/admin/set/self/admin_info.rb
@@ -8,7 +8,7 @@
 add_to_basket :warnings, :no_email_delivery
 
 def no_email_delivery?
-  Card.config.action_mailer.perform_deliveries == false
+  Cardio.config.action_mailer.perform_deliveries == false
 end
 
 def clean_html?
diff --git a/card/mod/basic_formats/set/all/head.rb b/card/mod/basic_formats/set/all/head.rb
index 59c97e6aa8..180669fd21 100644
--- a/card/mod/basic_formats/set/all/head.rb
+++ b/card/mod/basic_formats/set/all/head.rb
@@ -71,7 +71,7 @@ def views_in_head
   def decko_script_variables
     {
       "window.decko": { rootUrl: card_url("") },
-      "decko.doubleClick": Card.config.double_click,
+      "decko.doubleClick": Cardio.config.double_click,
       "decko.cssPath": head_stylesheet_path,
       "decko.currentUserId": (Auth.current_id if Auth.signed_in?)
 
@@ -143,6 +143,6 @@ def trigger_slot_ready
   end
 
   def rss_link?
-    Card.config.rss_enabled && respond_to?(:rss_link_tag)
+    Cardio.config.rss_enabled && respond_to?(:rss_link_tag)
   end
 end
diff --git a/card/mod/core/set/abstract/code_file.rb b/card/mod/core/set/abstract/code_file.rb
index 5e4637851d..7326570779 100644
--- a/card/mod/core/set/abstract/code_file.rb
+++ b/card/mod/core/set/abstract/code_file.rb
@@ -28,7 +28,7 @@ def source_dir
 def find_file filename
   modname = file_content_mod_name
   modname = $1 if modname =~ /^card-mod-(\w*)/
-  mod_path = Card::Mod.dirs.path modname
+  mod_path = Cardio::Mod.dirs.path modname
   file_path = File.join(mod_path, source_dir, filename)
   unless File.exist?(file_path)
     Rails.logger.info "couldn't locate file #{filename} at #{file_path}"
diff --git a/card/mod/core/set/all/permissions.rb b/card/mod/core/set/all/permissions.rb
index 37bc27a0a6..3887daf9e9 100644
--- a/card/mod/core/set/all/permissions.rb
+++ b/card/mod/core/set/all/permissions.rb
@@ -96,7 +96,7 @@ def deny_because why
 end
 
 def permitted? action
-  return false if Card.config.read_only # :read does not call #permit
+  return false if Cardio.config.read_only # :read does not call #permit
   return true if Auth.always_ok?
 
   Auth.as_card.among? who_can(action)
@@ -104,7 +104,7 @@ def permitted? action
 
 def permit action, verb=nil
   # not called by ok_to_read
-  if Card.config.read_only
+  if Cardio.config.read_only
     deny_because "Currently in read-only mode"
     return false
   end
diff --git a/card/mod/core/set/all/trash.rb b/card/mod/core/set/all/trash.rb
index c5b8f64e4c..5609d095ab 100644
--- a/card/mod/core/set/all/trash.rb
+++ b/card/mod/core/set/all/trash.rb
@@ -39,7 +39,7 @@ def delete_trashed_files
   end
 
   def all_file_ids
-    dir = Card.paths["files"].existent.first
+    dir = Cardio.paths["files"].existent.first
     Dir.entries(dir)[2..-1].map(&:to_i)
   end
 
diff --git a/card/mod/machines/spec/set/abstract/machine_spec.rb b/card/mod/machines/spec/set/abstract/machine_spec.rb
index b75f7dd96d..0f2197ac52 100644
--- a/card/mod/machines/spec/set/abstract/machine_spec.rb
+++ b/card/mod/machines/spec/set/abstract/machine_spec.rb
@@ -4,7 +4,7 @@
   describe "#make_machine_output_coded" do
     it "creates coded file" do
       Card[:all, :script].make_machine_output_coded
-      mod_path = Card::Mod.dirs.path "machines"
+      mod_path = Cardio::Mod.dirs.path "machines"
       path = File.join mod_path, "file", "all_script_machine_output", "file.js"
       expect(File.exist?(path)).to be_truthy
     end
diff --git a/card/mod/search/set/abstract/search/views.rb b/card/mod/search/set/abstract/search/views.rb
index 10700e3e71..3f479b3932 100644
--- a/card/mod/search/set/abstract/search/views.rb
+++ b/card/mod/search/set/abstract/search/views.rb
@@ -154,6 +154,6 @@ def checkbox_item item_card
   end
 
   def closed_limit
-    [search_params[:limit].to_i, Card.config.closed_search_limit].min
+    [search_params[:limit].to_i, Cardio.config.closed_search_limit].min
   end
 end
diff --git a/card/mod/search/set/self/search.rb b/card/mod/search/set/self/search.rb
index 8ea1a447cf..33e300bc6c 100644
--- a/card/mod/search/set/self/search.rb
+++ b/card/mod/search/set/self/search.rb
@@ -75,7 +75,7 @@ def new_item_of_type exact
   end
 
   def goto_items term, exact
-    goto_names = complete_or_match_search start_only: Card.config.navbox_match_start_only
+    goto_names = complete_or_match_search start_only: Cardio.config.navbox_match_start_only
     goto_names.unshift exact.name if add_exact_to_goto_names? exact, goto_names
     goto_names.map do |name|
       [name, name.to_name.url_key, h(highlight(name, term, sanitize: false))]
diff --git a/card/mod/standard/set/all/path.rb b/card/mod/standard/set/all/path.rb
index 4de449e8f7..84eebb3858 100644
--- a/card/mod/standard/set/all/path.rb
+++ b/card/mod/standard/set/all/path.rb
@@ -150,7 +150,7 @@ def add_unknown_name_to_opts name, opts
 
 format :css do
   def contextualize_path relative_path
-    if Card.config.file_storage == :local
+    if Cardio.config.file_storage == :local
       # absolute paths lead to invalid assets path in css for cukes
       card_path relative_path
     else
diff --git a/card/mod/standard/set/all/rich_html/error.rb b/card/mod/standard/set/all/rich_html/error.rb
index 75150d1088..c62f04fe23 100644
--- a/card/mod/standard/set/all/rich_html/error.rb
+++ b/card/mod/standard/set/all/rich_html/error.rb
@@ -186,7 +186,7 @@ def loud_denial_message
   end
 
   def not_denied_task_read?
-    @denied_task != :read && Card.config.read_only
+    @denied_task != :read && Cardio.config.read_only
   end
 
   def to_do_unauthorized_task
diff --git a/card/mod/standard/spec/set/all/path_spec.rb b/card/mod/standard/spec/set/all/path_spec.rb
index 7ab107ed2f..2611147894 100644
--- a/card/mod/standard/spec/set/all/path_spec.rb
+++ b/card/mod/standard/spec/set/all/path_spec.rb
@@ -4,11 +4,11 @@ def path *args
   end
 
   def with_complex_env
-    Card.config.relative_url_root = "/root"
+    Cardio.config.relative_url_root = "/root"
     Card::Env[:protocol] = "http://"
     Card::Env[:host] = "mydomain.com"
     yield
-    Card.config.relative_url_root = nil
+    Cardio.config.relative_url_root = nil
     Card::Env[:protocol] = nil
     Card::Env[:host] = nil
   end
diff --git a/card/spec/card/content_spec.rb b/card/spec/card/content_spec.rb
index d9930dc1b3..0c0949c164 100644
--- a/card/spec/card/content_spec.rb
+++ b/card/spec/card/content_spec.rb
@@ -400,7 +400,7 @@ def all_classes_pass_check_proc
       # it "doesn't fix regular nbsp order with setting" do
       #   # manually configure this setting, then make this one live
       #   # (test above will then fail)
-      #   pending "Can't set Card.config.space_last_in_multispace= false "\
+      #   pending "Can't set Cardio.config.space_last_in_multispace= false "\
       #           'for one test'
       #   assert_equal 'space&nbsp; test &nbsp;two &nbsp;&nbsp;space',
       #                Card::Content.clean!(
diff --git a/card/spec/card/loader_spec.rb b/card/spec/card/loader_spec.rb
index 7be9e7b278..240350374a 100644
--- a/card/spec/card/loader_spec.rb
+++ b/card/spec/card/loader_spec.rb
@@ -1,6 +1,6 @@
 # -*- encoding : utf-8 -*-
 
-describe Card::Mod::Loader do
+describe Cardio::Mod::Loader do
   # let(:card_double) { double "Card" }
   # let(:pat_all_double) { proxy Card::Set::All }
   # let(:format_double) { proxy Card::Format }
@@ -8,13 +8,13 @@
   # it "autos-load Card class methods from lib/card and mods" do
   #   #xpect(Card).to receive(:load_mods)
   #   #
-  #   allow(Card::Mod::Loader).to receive(:load_mods)
+  #   allow(Cardio::Mod::Loader).to receive(:load_mods)
   #   #card = Card[:all]
   #   #expect(card_double).to receive(:load_formats)
   #   #expect(Card).to receive(:load_sets)
   #   #expect(Card).to receive(:tracks).with(:any_args) # so Card still loads without core in failure testing
   #   Card[:all]
-  #   expect(Card::Mod::Loader).to have_received(:load_mods)
+  #   expect(Cardio::Mod::Loader).to have_received(:load_mods)
   #   #expect(Card.instance_method(:version)).to be
   #   # allow(Card).to receive(:version)
   #   # expect(Card.instance_method(:type_card)).to be
diff --git a/card/spec/card/mod/loader/mod_dirs.rb b/card/spec/card/mod/loader/mod_dirs.rb
index 0f826ea942..64e8ce48a6 100644
--- a/card/spec/card/mod/loader/mod_dirs.rb
+++ b/card/spec/card/mod/loader/mod_dirs.rb
@@ -1,8 +1,8 @@
 
-describe Card::Mod::Dirs do
+describe Cardio::Mod::Dirs do
   it 'loads mods from Modfile' do
     path = File.expand_path "..", __FILE__
-    tg = Card::Mod::Dirs.new path
+    tg = Cardio::Mod::Dirs.new path
     expect(tg.mods).to eq %w(mod1 mod2)
   end
 end
diff --git a/card/spec/card/mod/loader/set_loader_spec.rb b/card/spec/card/mod/loader/set_loader_spec.rb
index eb3ead1c8b..4beeef140e 100644
--- a/card/spec/card/mod/loader/set_loader_spec.rb
+++ b/card/spec/card/mod/loader/set_loader_spec.rb
@@ -1,13 +1,13 @@
 # -*- encoding : utf-8 -*-
 
-RSpec.describe Card::Mod::Loader::SetLoader do
+RSpec.describe Cardio::Mod::Loader::SetLoader do
   let(:mod_dirs) do
     path = File.expand_path "../../../../support/test_mods", __FILE__
-    Card::Mod::Dirs.new path
+    Cardio::Mod::Dirs.new path
   end
 
   it 'initializes the load strategy' do
-    expect(Card::Mod::LoadStrategy::Eval).to receive(:new).with(mod_dirs, instance_of(described_class))
+    expect(Cardio::Mod::LoadStrategy::Eval).to receive(:new).with(mod_dirs, instance_of(described_class))
     described_class.new(load_strategy: :eval, mod_dirs: mod_dirs)
   end
 
diff --git a/card/spec/card/mod/loader/set_pattern_loader_spec.rb b/card/spec/card/mod/loader/set_pattern_loader_spec.rb
index 723bc2d2ac..924910f99d 100644
--- a/card/spec/card/mod/loader/set_pattern_loader_spec.rb
+++ b/card/spec/card/mod/loader/set_pattern_loader_spec.rb
@@ -1,14 +1,14 @@
 # -*- encoding : utf-8 -*-
 
-RSpec.describe Card::Mod::Loader::SetPatternLoader do
+RSpec.describe Cardio::Mod::Loader::SetPatternLoader do
   let(:mod_dirs) do
     path = File.expand_path "../../../../support/test_mods", __FILE__
     puts path
-    Card::Mod::Dirs.new path
+    Cardio::Mod::Dirs.new path
   end
 
   it 'initializes the load strategy' do
-    expect(Card::Mod::LoadStrategy::Eval).to receive(:new).with(mod_dirs, instance_of(described_class))
+    expect(Cardio::Mod::LoadStrategy::Eval).to receive(:new).with(mod_dirs, instance_of(described_class))
     described_class.new load_strategy: :eval, mod_dirs: mod_dirs
   end
 
diff --git a/card/spec/card/mod_spec.rb b/card/spec/card/mod_spec.rb
index 439c3ec80c..a0341c22b8 100644
--- a/card/spec/card/mod_spec.rb
+++ b/card/spec/card/mod_spec.rb
@@ -1,4 +1,4 @@
-RSpec.describe Card::Mod do
+RSpec.describe Cardio::Mod do
   describe "gem_spec" do
     it "finds card mods" do
       expect(described_class.gem_spec("card-mod-defaults"))
diff --git a/card/spec/card/set/event_spec.rb b/card/spec/card/set/event_spec.rb
index b36a80932e..94c01f0391 100644
--- a/card/spec/card/set/event_spec.rb
+++ b/card/spec/card/set/event_spec.rb
@@ -20,7 +20,7 @@ def event_called
   end
 
   it "runs events after reloading sets" do
-    Card::Mod::Loader.reload_sets
+    Cardio::Mod::Loader.reload_sets
     expect(Card.create! name: "event tester").to be_a(Card)
     # if events don't load, the above will fail to stamp a creator_id and won't validate
   end
diff --git a/card/spec/support/card_spec_helper.rb b/card/spec/support/card_spec_helper.rb
index ac35bdb7a9..5b462eaa4e 100644
--- a/card/spec/support/card_spec_helper.rb
+++ b/card/spec/support/card_spec_helper.rb
@@ -88,10 +88,10 @@ def users
     end
 
     def with_rss_enabled
-      Card.config.rss_enabled = true
+      Cardio.config.rss_enabled = true
       yield
     ensure
-      Card.config.rss_enabled = false
+      Cardio.config.rss_enabled = false
     end
 
     module ClassMethods
diff --git a/card/spec/support/card_spec_loader.rb b/card/spec/support/card_spec_loader.rb
index 616114cf42..aa0baa55d6 100644
--- a/card/spec/support/card_spec_loader.rb
+++ b/card/spec/support/card_spec_loader.rb
@@ -106,7 +106,7 @@ def helper
     def load_shared_examples
       require File.expand_path "../card_shared_examples", __FILE__
       %w[shared_examples shared_context].each do |dirname|
-        Card::Mod.dirs.each "spec/#{dirname}" do |shared_ex_dir|
+        Cardio::Mod.dirs.each "spec/#{dirname}" do |shared_ex_dir|
           Dir["#{shared_ex_dir}/**/*.rb"].sort.each { |f| require f }
         end
       end
diff --git a/card/spec/card/tasks/file_card_creator/script_card_spec.rb b/card/spec/tasks/file_card_creator/script_card_spec.rb
similarity index 100%
rename from card/spec/card/tasks/file_card_creator/script_card_spec.rb
rename to card/spec/tasks/file_card_creator/script_card_spec.rb
diff --git a/decko/bin/decko b/decko/bin/decko
deleted file mode 100755
index 8ef9561171..0000000000
--- a/decko/bin/decko
+++ /dev/null
@@ -1,9 +0,0 @@
-#!/usr/bin/env ruby
-
-git_path = File.expand_path("../../../.git", __FILE__)
-
-if File.exist?(git_path)
-  railties_path = File.expand_path("../../lib", __FILE__)
-  $LOAD_PATH.unshift(railties_path)
-end
-require "decko/cli"
diff --git a/decko/decko.gemspec b/decko/decko.gemspec
index 6c0a87c186..54a85d0ea5 100644
--- a/decko/decko.gemspec
+++ b/decko/decko.gemspec
@@ -7,9 +7,9 @@ DeckoGem.gem "decko" do |s, d|
   s.description =
     "a wiki approach to structured data, dynamic interaction,  and web design"
 
-  s.files = Dir["{db,lib,public,set}/**/*"]
+  s.files = Dir["{exe,app,lib,rails}/**/*"]
 
-  s.bindir = "bin"
+  s.bindir = "exe"
   s.executables = ["decko"]
   s.add_runtime_dependency "card", d.card_version
 end
diff --git a/decko/exe/decko b/decko/exe/decko
new file mode 100755
index 0000000000..e408bb7f6d
--- /dev/null
+++ b/decko/exe/decko
@@ -0,0 +1,9 @@
+#!/usr/bin/env ruby
+
+#git_path = File.expand_path("../../../.git", __FILE__)
+#if File.exist?(git_path)
+#  railties_path = File.expand_path("../../lib", __FILE__)
+#  $LOAD_PATH.unshift(railties_path)
+#end
+
+require "decko/cli"
diff --git a/decko/features/support/delayed_job.rb b/decko/features/support/delayed_job.rb
index c1347bb78d..5e44da47df 100644
--- a/decko/features/support/delayed_job.rb
+++ b/decko/features/support/delayed_job.rb
@@ -1,4 +1,4 @@
-Card.config.active_job.queue_adapter = :delayed_job
+Cardio.config.active_job.queue_adapter = :delayed_job
 
 Before("@delayed-jobs") do
   Cardio.delaying!
diff --git a/decko/lib/decko.rb b/decko/lib/decko.rb
index 2f8965631d..531dcf698c 100644
--- a/decko/lib/decko.rb
+++ b/decko/lib/decko.rb
@@ -1,23 +1,12 @@
 
+require 'cardio'
+
 module Decko
   DECKO_GEM_ROOT = File.expand_path("../..", __FILE__)
 
-  class << self
-    def root
-      Rails.root
-    end
-
-    def application
-      Rails.application
-    end
 
-    def config
-      application.config
-    end
-
-    def paths
-      application.paths
-    end
+  class << self
+    include Cardio::RailsConfigMethods
 
     def gem_root
       DECKO_GEM_ROOT
diff --git a/decko/lib/decko/application.rb b/decko/lib/decko/application.rb
index 7753e78112..002b97f147 100644
--- a/decko/lib/decko/application.rb
+++ b/decko/lib/decko/application.rb
@@ -1,20 +1,12 @@
 # -*- encoding : utf-8 -*-
 
 require "decko/engine"
-require_relative "config/initializers/sedate_parser"
-
-Bundler.require :default, *Rails.groups
+require "cardio/application"
+djar = "delayed_job_active_record"
+require djar if Gem::Specification.find_all_by_name(djar).any?
 
 module Decko
-  class Application < Rails::Application
-    initializer :load_decko_environment_config,
-                before: :load_environment_config, group: :all do
-      add_path paths, "lib/decko/config/environments", glob: "#{Rails.env}.rb"
-      paths["lib/decko/config/environments"].existent.each do |environment|
-        require environment
-      end
-    end
-
+  class Application < Cardio::Application
     class << self
       def inherited base
         super
@@ -24,17 +16,17 @@ def inherited base
       end
     end
 
-    def add_path paths, path, options={}
+    # override in each domain with local root
+    def root_path option
       root = options.delete(:root) || Decko.gem_root
-      options[:with] = File.join(root, (options[:with] || path))
-      paths.add path, options
     end
 
-    def config
-      @config ||= begin
-        config = super
+    def configure &block
+      super do
 
-        Cardio.set_config config
+        instance_eval &block if block_given?
+
+        config.active_job.queue_adapter = :delayed_job
 
         # any config settings below:
         # (a) do not apply to Card used outside of a Decko context
@@ -50,7 +42,6 @@ def config
         # overridable decko-specific settings don't have a place yet
         # but should probably follow the cardio pattern.
 
-        # config.load_defaults "6.0"
         config.autoloader = :zeitwerk
         config.load_default = "6.0"
         config.i18n.enforce_available_locales = true
@@ -64,14 +55,9 @@ def config
 
         # Rails.autoloaders.log!
         Rails.autoloaders.main.ignore(File.join(Cardio.gem_root, "lib/card/seed_consts.rb"))
-        config
-      end
-    end
+        # paths configuration
 
-    def paths
-      @paths ||= begin
-        paths = super
-        Cardio.set_paths paths
+        Cardio.set_paths
 
         paths.add "files"
 
@@ -82,8 +68,6 @@ def paths
           add_path paths, "config/routes.rb",
                    with: "rails/application-routes.rb"
         end
-
-        paths
       end
     end
   end
diff --git a/decko/lib/decko/cli.rb b/decko/lib/decko/cli.rb
index 7da1b02516..ed2c86523d 100644
--- a/decko/lib/decko/cli.rb
+++ b/decko/lib/decko/cli.rb
@@ -1,17 +1,52 @@
 require "rbconfig"
-require "decko/script_decko_loader"
+require "pathname"
 
-# If we are inside a Decko application this method performs an exec and thus
-# the rest of this script is not run.
-Decko::ScriptDeckoLoader.exec_script_decko!
+module ScriptLoader
+  RUBY = File.join(*RbConfig::CONFIG.values_at("bindir", "ruby_install_name")) +
+         RbConfig::CONFIG["EXEEXT"]
+  # replace with current cli.rb
+  APP_DECKO = File.join("config", "application.rb")
 
-require "rails/ruby_version_check"
-Signal.trap("INT") { puts; exit(1) }
+  def self.find_app_config
+    cwd = Dir.pwd
+    return unless in_decko_application? || in_decko_application_subdirectory?
+    return File.join(cwd, APP_DECKO)
+    Dir.chdir("..") do
+      # Recurse in a chdir block: if the search fails we want to be sure
+      # the application is generated in the original working directory.
+      exec_script_decko! unless cwd == Dir.pwd
+    end
+  rescue SystemCallError
+    # could not chdir, no problem just return
+  end
 
-# if ARGV.first == 'plugin'
+  def self.in_decko_application?
+    File.exist?(APP_DECKO)
+  end
+
+  def self.in_decko_application_subdirectory? path=Pathname.new(Dir.pwd)
+    File.exist?(File.join(path, APP_DECKO)) ||
+      !path.root? && in_decko_application_subdirectory?(path.parent)
+  end
+end
+
+# If we are inside a Decko/Card application (have a parent with
+# config/application.rb, therefore any rails and use card commands
+# otherwise we are decko new and decko/commands.rb should handle it.
+# The first case here is in app, replaces script_loader method
+if defined?(APP_CONF) || APP_CONF = ScriptLoader.find_app_config
+  require APP_CONF
+  require File.expand_path("../boot", APP_CONF)
+  require 'decko/commands'
+end
+
+ require "rails/ruby_version_check"
+ Signal.trap("INT") { puts; exit(1) }
+
+#if ARGV.first == 'plugin'
 #  ARGV.shift
 #  require 'decko/commands/plugin_new'
-# else
+#else
+  require "decko/commands/application"
+#end
 
-require "decko/commands/application"
-# end
diff --git a/decko/lib/decko/commands.rb b/decko/lib/decko/commands.rb
index 0d65e8147e..464f8ab79a 100644
--- a/decko/lib/decko/commands.rb
+++ b/decko/lib/decko/commands.rb
@@ -1,16 +1,11 @@
 # add method in? to Object class
 require "active_support/core_ext/object/inclusion"
 
-def load_rake_tasks
-  require "./config/environment"
-  require "rake"
-  Decko::Application.load_tasks
-end
-
+require 'cardio/commands'
 RAILS_COMMANDS = %w( generate destroy plugin benchmarker profiler console
                      server dbconsole application runner ).freeze
 DECKO_COMMANDS = %w(new cucumber rspec jasmine).freeze
-DECKO_DB_COMMANDS = %w(seed reseed load update).freeze
+DECKO_TASK_COMMANDS = %w(seed reseed load update).freeze
 
 ALIAS = {
   "rs" => "rspec",
@@ -30,20 +25,15 @@ def supported_rails_command? arg
 
 ARGV << "--help" if ARGV.empty?
 
+require 'cardio/commands'
+
 module Decko
   module Commands
     class << self
-      def run_new
-        if ARGV.first.in?(["-h", "--help"])
-          require "decko/commands/application"
-        else
-          puts "Can't initialize a new deck within the directory of another, " \
-           "please change to a non-deck directory first.\n"
-          puts "Type 'decko' for help."
-          exit(1)
-        end
-      end
-
+      include Decko::ClassMethds
+      include Cardio::ClassMethods
+    end
+    module ClassMethods
       def run_rspec
         require "decko/commands/rspec_command"
         RspecCommand.new(ARGV).run
@@ -54,7 +44,9 @@ def run_cucumber
         CucumberCommand.new(ARGV).run
       end
 
-      def run_db_task command
+      def run_task command
+        load_rake_tasks
+        require "decko/commands/application"
         require "decko/commands/rake_command"
         RakeCommand.new("decko:#{command}", ARGV).run
       end
@@ -63,6 +55,12 @@ def run_jasmine
         require "decko/commands/rake_command"
         RakeCommand.new("spec:javascript", envs: "test").run
       end
+
+      def load_rake_tasks
+        require "rake"
+        require "./config/environment"
+        Decko::Application.load_tasks
+      end
     end
   end
 end
@@ -75,15 +73,21 @@ def run_jasmine
   # without this, the card generators don't list with: decko g --help
   require "generators/card" if command == "generate"
   require "rails/commands"
+elsif command == "-T"
+  load_rake_tasks
 else
   ARGV.shift
+  lookup = command
+  lookup = $1 if command =~ /^([^:]+):/
+
   case command
   when "--version", "-v"
     puts "Decko #{Card::Version.release}"
   when *DECKO_COMMANDS
     Decko::Commands.send("run_#{command}")
-  when *DECKO_DB_COMMANDS
-    Decko::Commands.run_db_task command
+  when *DECKO_TASK_COMMANDS
+  when *Cardio::Commands::CARD_TASK_COMMANDS
+    Decko::Commands.run_task command
   else
     puts "Error: Command not recognized" unless command.in?(["-h", "--help"])
     puts <<-EOT
diff --git a/decko/lib/decko/commands/application.rb b/decko/lib/decko/commands/application.rb
index e10342031c..8a7bc852fe 100644
--- a/decko/lib/decko/commands/application.rb
+++ b/decko/lib/decko/commands/application.rb
@@ -2,9 +2,10 @@
 require File.expand_path("../../generators/deck/deck_generator", __FILE__)
 
 if ARGV.first != "new"
-  ARGV[0] = "--help"
+  #require "decko/application"
+  require "cardio/commands"
 else
   ARGV.shift
-end
 
-Decko::Generators::Deck::DeckGenerator.start
+  Decko::Generators::Deck::DeckGenerator.start
+end
diff --git a/decko/lib/decko/commands/command.rb b/decko/lib/decko/commands/command.rb
index 658a4de938..587a2d8f33 100644
--- a/decko/lib/decko/commands/command.rb
+++ b/decko/lib/decko/commands/command.rb
@@ -1,28 +1,8 @@
-# require "English" # needed for CHILD_STATUS, but not sure this is the best place for this.
+require 'cardio/commands/command'
 
 module Decko
   module Commands
-    class Command
-      def run
-        puts command
-        exit_with_child_status command
-      end
-
-      def exit_with_child_status command
-        command += " 2>&1"
-        exit $CHILD_STATUS.exitstatus unless system command
-      end
-
-      # split special decko args and original command args separated by '--'
-      def split_args args
-        before_split = true
-        decko_args, command_args =
-          args.partition do |a|
-            before_split = (a == "--" ? false : before_split)
-          end
-        command_args.shift
-        [decko_args, command_args]
-      end
+    class Command < Cardio::Commands::Command
     end
   end
 end
diff --git a/decko/lib/decko/commands/rake_command.rb b/decko/lib/decko/commands/rake_command.rb
index 2b2f3e7da8..493db71d00 100644
--- a/decko/lib/decko/commands/rake_command.rb
+++ b/decko/lib/decko/commands/rake_command.rb
@@ -1,41 +1,11 @@
-require File.expand_path("../command", __FILE__)
-# require "pry"
+
+require "cardio/commands/command"
 
 module Decko
   module Commands
-    class RakeCommand < Command
-      def initialize rake_task, args={}
-        @task = rake_task
-        opts = {}
-        if args.is_a? Array
-          Parser.new(rake_task, opts).parse!(args)
-        else
-          opts = args
-        end
-        @envs = Array(opts[:envs])
-      end
-
-      def run
-        commands.each do |cmd|
-          puts cmd
-          # exit_with_child_status cmd
-
-          result = `#{cmd}`
-          process = $?
-          puts result
-          exit process.exitstatus unless process.success?
-        end
-      end
 
-      def commands
-        task_cmd = "bundle exec rake #{@task}"
-        return [task_cmd] if !@envs || @envs.empty?
-        @envs.map do |env|
-          "env RAILS_ENV=#{env} #{task_cmd}"
-        end
-      end
+    class RakeCommand < Cardio::Commands::Command
     end
   end
 end
 
-require File.expand_path("../rake_command/parser", __FILE__)
\ No newline at end of file
diff --git a/decko/lib/decko/commands/rspec_command.rb b/decko/lib/decko/commands/rspec_command.rb
deleted file mode 100644
index 7064414379..0000000000
--- a/decko/lib/decko/commands/rspec_command.rb
+++ /dev/null
@@ -1,37 +0,0 @@
-require File.expand_path("../command", __FILE__)
-
-module Decko
-  module Commands
-    class RspecCommand < Command
-      def initialize args
-        require "rspec/core"
-        require "decko/application"
-
-        @decko_args, @rspec_args = split_args args
-        @opts = {}
-        Parser.new(@opts).parse!(@decko_args)
-      end
-
-      def command
-        "#{env_args} #{@opts[:executer]} #{@opts[:rescue]}" \
-          "rspec #{@rspec_args.shelljoin} #{@opts[:files]}"
-      end
-
-      private
-
-      def env_args
-        ["RAILS_ROOT=.", coverage].compact.join " "
-      end
-
-      def coverage
-        # no coverage if rspec was started with file argument
-        if (@opts[:files] || @rspec_args.present?) && !@opts[:simplecov]
-          @opts[:simplecov] = "COVERAGE=false"
-        end
-        @opts[:simplecov]
-      end
-    end
-  end
-end
-
-require File.expand_path("../rspec_command/parser", __FILE__)
diff --git a/decko/lib/decko/commands/rspec_command/parser.rb b/decko/lib/decko/commands/rspec_command/parser.rb
deleted file mode 100644
index 3233a126e1..0000000000
--- a/decko/lib/decko/commands/rspec_command/parser.rb
+++ /dev/null
@@ -1,96 +0,0 @@
-# -*- encoding : utf-8 -*-
-require "optparse"
-
-module Decko
-  module Commands
-    class RspecCommand
-      class Parser < OptionParser
-        RSPEC_PATH_MESSAGE = <<-EOT
-
-            DECKO ARGS
-
-            You don't have to give a full path for FILENAME; the basename is enough.
-            If FILENAME does not include '_spec', then rspec searches for the
-            corresponding spec file.
-            The line number always refers to the example in the spec file.
-
-        EOT
-
-        def initialize opts
-          super() do |parser|
-            parser.banner = "Usage: decko rspec [DECKO ARGS] -- [RSPEC ARGS]\n\n" \
-                            "RSPEC ARGS"
-            parser.separator RSPEC_PATH_MESSAGE
-
-            parser.on("-d", "--spec FILENAME(:LINE)",
-                      "Run spec for a Decko deck file") do |file|
-              opts[:files] = find_spec_file(file, "#{Decko.root}/mod")
-            end
-            parser.on("-c", "--core-spec FILENAME(:LINE)",
-                      "Run spec for a Decko core file") do |file|
-              opts[:files] = find_spec_file(file, Cardio.gem_root)
-            end
-            parser.on("-m", "--mod MODNAME",
-                      "Run all specs for a mod or matching a mod") do |file|
-              opts[:files] = find_mod_file(file, Cardio.gem_root)
-            end
-            parser.on("-s", "--[no-]simplecov", "Run with simplecov") do |s|
-              opts[:simplecov] = s ? "" : "COVERAGE=false"
-            end
-            parser.on("--rescue", "Run with pry-rescue") do
-              process_rescue_opts opts
-            end
-            parser.on("--[no-]spring", "Run with spring") do |spring|
-              process_spring_opts spring, opts
-            end
-            parser.separator "\n"
-          end
-        end
-
-        private
-
-        def process_rescue_opts opts
-          if opts[:executer] == "spring"
-            puts "Disabled pry-rescue. Not compatible with spring."
-          else
-            opts[:rescue] = "rescue "
-          end
-        end
-
-        def process_spring_opts spring, opts
-          if spring
-            opts[:executer] = "spring"
-            if opts[:rescue]
-              opts[:rescue] = ""
-              puts "Disabled pry-rescue. Not compatible with spring."
-            end
-          else
-            opts[:executer] = "bundle exec"
-          end
-        end
-
-        def find_mod_file filename, base_dir
-          if File.exist?("mod/#{filename}") || File.exist?("#{base_dir}/mod/#{filename}")
-            "#{base_dir}/mod/#{filename}"
-          elsif (files = find_spec_file(filename, "mod"))&.present?
-            files
-          else
-            find_spec_file(file, "#{base_dir}/mod")
-          end
-        end
-
-        def find_spec_file filename, base_dir
-          file, line = filename.split(":")
-          if file.include?("_spec.rb") && File.exist?(file)
-            filename
-          else
-            file = File.basename(file, ".rb").sub(/_spec$/, "")
-            Dir.glob("#{base_dir}/**/#{file}_spec.rb").flatten.map do |spec_file|
-              line ? "#{spec_file}:#{line}" : file
-            end.join(" ")
-          end
-        end
-      end
-    end
-  end
-end
diff --git a/decko/lib/decko/engine.rb b/decko/lib/decko/engine.rb
index 09e6cf9463..3a7099a15d 100644
--- a/decko/lib/decko/engine.rb
+++ b/decko/lib/decko/engine.rb
@@ -18,16 +18,17 @@ class Engine < ::Rails::Engine
     paths.add "app/controllers",  with: "rails/controllers", eager_load: true
     paths.add "gem-assets",       with: "rails/assets"
     paths.add "config/routes.rb", with: "rails/engine-routes.rb"
-    paths.add "lib/tasks", with: "#{::Decko.gem_root}/lib/decko/tasks",
+    paths.add "lib/tasks", with: "#{::Decko.gem_root}/lib/tasks",
                            glob: "**/*.rake"
-    paths["lib/tasks"] << "#{::Cardio.gem_root}/lib/card/tasks"
-    paths.add "lib/decko/config/initializers",
+    # FIXME, belongs in parent
+    paths["lib/tasks"] << "#{::Cardio.gem_root}/lib/tasks"
+    paths.add "lib/config/initializers",
               with: File.join(Decko.gem_root, "lib/decko/config/initializers"),
               glob: "**/*.rb"
 
     initializer "decko.engine.load_config_initializers",
                 after: :load_config_initializers do
-      paths["lib/decko/config/initializers"].existent.sort.each do |initializer|
+      paths["lib/config/initializers"].existent.sort.each do |initializer|
         load(initializer)
       end
     end
diff --git a/decko/lib/decko/generators/deck/templates/script/decko b/decko/lib/decko/generators/deck/templates/script/decko
deleted file mode 100755
index 1dbb54b374..0000000000
--- a/decko/lib/decko/generators/deck/templates/script/decko
+++ /dev/null
@@ -1,6 +0,0 @@
-
-# This command will be run when you use `decko` from within your deck.
-
-APP_PATH = File.expand_path('../../config/application',  __FILE__)
-require File.expand_path('../../config/boot',  __FILE__)
-require 'decko/commands'
diff --git a/decko/lib/decko/script_decko_loader.rb b/decko/lib/decko/script_decko_loader.rb
deleted file mode 100644
index 89291cb1e4..0000000000
--- a/decko/lib/decko/script_decko_loader.rb
+++ /dev/null
@@ -1,31 +0,0 @@
-require "pathname"
-
-module Decko
-  module ScriptDeckoLoader
-    RUBY = File.join(*RbConfig::CONFIG.values_at("bindir", "ruby_install_name")) +
-           RbConfig::CONFIG["EXEEXT"]
-    SCRIPT_DECKO = File.join("script", "decko")
-
-    def self.exec_script_decko!
-      cwd = Dir.pwd
-      return unless in_decko_application? || in_decko_application_subdirectory?
-      exec RUBY, SCRIPT_DECKO, *ARGV if in_decko_application?
-      Dir.chdir("..") do
-        # Recurse in a chdir block: if the search fails we want to be sure
-        # the application is generated in the original working directory.
-        exec_script_decko! unless cwd == Dir.pwd
-      end
-    rescue SystemCallError
-      # could not chdir, no problem just return
-    end
-
-    def self.in_decko_application?
-      File.exist?(SCRIPT_DECKO)
-    end
-
-    def self.in_decko_application_subdirectory? path=Pathname.new(Dir.pwd)
-      File.exist?(File.join(path, SCRIPT_DECKO)) ||
-        !path.root? && in_decko_application_subdirectory?(path.parent)
-    end
-  end
-end
diff --git a/decko/lib/decko/tasks/.gitkeep b/decko/lib/decko/tasks/.gitkeep
deleted file mode 100644
index e69de29bb2..0000000000
diff --git a/decko/lib/decko/tasks/alias.rb b/decko/lib/tasks/alias.rb
similarity index 100%
rename from decko/lib/decko/tasks/alias.rb
rename to decko/lib/tasks/alias.rb
diff --git a/decko/lib/decko/tasks/cucumber.rake b/decko/lib/tasks/cucumber.rake
similarity index 100%
rename from decko/lib/decko/tasks/cucumber.rake
rename to decko/lib/tasks/cucumber.rake
diff --git a/decko/lib/decko/tasks/decko.rake b/decko/lib/tasks/decko.rake
similarity index 98%
rename from decko/lib/decko/tasks/decko.rake
rename to decko/lib/tasks/decko.rake
index 6087ea7483..7df20acd1b 100644
--- a/decko/lib/decko/tasks/decko.rake
+++ b/decko/lib/tasks/decko.rake
@@ -1,5 +1,5 @@
 require "decko/application"
-require_relative "alias"
+require "tasks/alias"
 require "card/seed_consts"
 
 CARD_TASKS =
@@ -101,7 +101,7 @@ decko_namespace = namespace :decko do
   desc "set symlink for assets"
   task update_assets_symlink: :environment do
     prepped_asset_path do |assets_path|
-      Card::Mod.dirs.each_assets_path do |mod, target|
+      Cardio::Mod.dirs.each_assets_path do |mod, target|
         link = File.join assets_path, mod
         FileUtils.rm_rf link
         FileUtils.ln_s target, link, force: true
diff --git a/decko/lib/decko/tasks/decko/docs.rake b/decko/lib/tasks/docs.rake
similarity index 100%
rename from decko/lib/decko/tasks/decko/docs.rake
rename to decko/lib/tasks/docs.rake
diff --git a/decko/lib/decko/tasks/decko/tmpsets.rake b/decko/lib/tasks/tmpsets.rake
similarity index 100%
rename from decko/lib/decko/tasks/decko/tmpsets.rake
rename to decko/lib/tasks/tmpsets.rake