move site config from initialiser to own module for potential improvements in how to access common configs when needed ... way better than using `.dig` by hand everywhere i'd say

app/controllers/user/registrations_controller.rb

@@ -35,6 +35,6 @@ class User::RegistrationsController < Devise::RegistrationsController
   end
 
   def redirect_if_registrations_disabled!
-    redirect_to root_path unless APP_CONFIG.dig(:features, :registration, :enabled)
+    redirect_to root_path unless Retrospring::Config.registrations_enabled?
   end
 end

app/views/about/index.html.haml

@@ -5,7 +5,7 @@
       = render "layouts/messages"
       %h1= APP_CONFIG["site_name"]
       %p= t(".subtitle")
-      - if APP_CONFIG.dig(:features, :registration, :enabled)
+      - if Retrospring::Config.registrations_enabled?
         %p
           %a.btn.btn-outline-light.btn-lg{ href: url_for(new_user_registration_path) }
             = t(".register")

app/views/application/_questionbox.html.haml

@@ -40,11 +40,11 @@
                 %input{ name: "qb-to", type: "hidden", value: user.id }/
                 %button.btn.btn-primary{ name: "qb-ask",
                   type: :button,
-                  data: { loading_text: t(".load"), promote: user_signed_in? || !user_signed_in? && !APP_CONFIG.dig(:features, :registration, :enabled) ? "false" : "true", "character-count-target": "action" } }
+                  data: { loading_text: t(".load"), promote: user_signed_in? || !user_signed_in? && !Retrospring::Config.registrations_enabled ? "false" : "true", "character-count-target": "action" } }
                   Ask
       - unless user_signed_in?
         - if user.privacy_allow_anonymous_questions?
-          - if APP_CONFIG.dig(:features, :registration, :enabled)
+          - if Retrospring::Config.registrations_enabled?
             .d-none#question-box-promote
               .row
                 .col-12.text-center
@@ -61,7 +61,7 @@
                   %small= t(".promote.join", app_title: APP_CONFIG["site_name"])
         - else
           .text-center
-            - if APP_CONFIG.dig(:features, :registration, :enabled)
+            - if Retrospring::Config.registrations_enabled?
               %strong= t(".status.non_anonymous_html", sign_in: link_to(t("voc.login"), new_user_session_path), sign_up: link_to(t("voc.register"), new_user_registration_path))
             - else
               %strong= t(".status.non_anonymous_no_registration_html", sign_in: link_to(t("voc.login"), new_user_session_path))

app/views/navigation/_guest.html.haml

@@ -14,5 +14,5 @@
     .collapse.navbar-collapse#j2-main-navbar-collapse
       %ul.nav.navbar-nav.ms-auto
         = nav_entry t("voc.login"), new_user_session_path
-        - if APP_CONFIG.dig(:features, :registration, :enabled)
+        - if Retrospring::Config.registrations_enabled?
           = nav_entry t("voc.register"), new_user_registration_path

config/initializers/10_config.rb

@@ -1,23 +1,4 @@
 # frozen_string_literal: true
 
 # Auxiliary config
-
-APP_CONFIG = {}.with_indifferent_access
-
-# load yml config if it's present
-justask_yml_path = Rails.root.join("config/justask.yml")
-APP_CONFIG.merge!(YAML.load_file(justask_yml_path)) if File.exist?(justask_yml_path)
-
-# load config from ENV where possible
-env_config = {
-  # The site name, shown everywhere
-  site_name: ENV.fetch("SITE_NAME", nil),
-
-  hostname:  ENV.fetch("HOSTNAME", nil),
-}.compact
-APP_CONFIG.merge!(env_config)
-
-# Update rails config for mail
-Rails.application.config.action_mailer.default_url_options = {
-  host: APP_CONFIG["hostname"],
-}
+APP_CONFIG = Retrospring::Config.config_hash

lib/retrospring/config.rb

@@ -0,0 +1,29 @@
+# frozen_string_literal: true
+
+module Retrospring
+  module Config
+    module_function
+
+    def config_hash = {}.with_indifferent_access.tap do |hash|
+      # load yml config if it's present
+      justask_yml_path = Rails.root.join("config/justask.yml")
+      hash.merge!(YAML.load_file(justask_yml_path)) if File.exist?(justask_yml_path)
+
+      # load config from ENV where possible
+      env_config = {
+        # The site name, shown everywhere
+        site_name: ENV.fetch("SITE_NAME", nil),
+
+        hostname:  ENV.fetch("HOSTNAME", nil),
+      }.compact
+      hash.merge!(env_config)
+
+      # Update rails config for mail
+      Rails.application.config.action_mailer.default_url_options = {
+        host: hash["hostname"],
+      }
+    end
+
+    def registrations_enabled? = APP_CONFIG.dig(:features, :registration, :enabled)
+  end
+end