diff --git a/config/application.rb b/config/application.rb
index 850a2b515..c221d0090 100644
--- a/config/application.rb
+++ b/config/application.rb
@@ -9,7 +9,34 @@
 Bundler.require(*groups)
 
 module Hyku
+  # Providing a common method to ensure consistent UTF-8 encoding.  Also removing the tricksy Byte
+  # Order Marker character which is an invisible 0 space character.
+  #
+  # @note In testing, we encountered errors with the file's character encoding
+  #       (e.g. `Encoding::UndefinedConversionError`).  The following will force the encoding to
+  #       UTF-8 and replace any invalid or undefined characters from the original encoding with a
+  #       "?".
+  #
+  #       Given that we still have the original, and this is a derivative, the forced encoding
+  #       should be acceptable.
+  #
+  # @param [String]
+  # @return [String]
+  #
+  # @see https://sentry.io/organizations/scientist-inc/issues/3773392603/?project=6745020&query=is%3Aunresolved&referrer=issue-stream
+  # @see https://github.com/samvera-labs/bulkrax/pull/689
+  # @see https://github.com/samvera-labs/bulkrax/issues/688
+  # @see https://github.com/scientist-softserv/adventist-dl/issues/179
+  def self.utf_8_encode(string)
+    string
+      .encode(Encoding.find('UTF-8'), invalid: :replace, undef: :replace, replace: "?")
+      .delete("\xEF\xBB\xBF")
+  end
+
   class Application < Rails::Application
+    # Add this line to load the lib folder first because we need
+    config.autoload_paths.unshift("#{Rails.root}/lib")
+
     # Settings in config/environments/* take precedence over those specified here.
     # Application configuration should go into files in config/initializers
     # -- all .rb files in that directory are automatically loaded.
@@ -33,22 +60,33 @@ class Application < Rails::Application
     end
 
     config.to_prepare do
-      # Allows us to use decorator files in the app directory
+
+      # Add any extra services before IiifPrint::PluggableDerivativeService to enable processing
+      Hyrax::DerivativeService.services = [IiifPrint::PluggableDerivativeService]
+
+      # When you are ready to use the derivative rodeo instead of the pluggable uncomment the
+      # following and comment out the preceding Hyrax::DerivativeService.service
+      #
+      # Hyrax::DerivativeService.services = [
+      #   Adventist::TextFileTextExtractionService,
+      #   IiifPrint::DerivativeRodeoService,
+      #   Hyrax::FileSetDerivativesService]
+
+      DerivativeRodeo::Generators::HocrGenerator.additional_tessearct_options = "-l eng_best"
+
+      # Allows us to use decorator files
       Dir.glob(File.join(File.dirname(__FILE__), "../app/**/*_decorator*.rb")).sort.each do |c|
         Rails.configuration.cache_classes ? require(c) : load(c)
       end
-    end
 
-    config.to_prepare do
-      # Allows us to use decorator files in the app directory
       Dir.glob(File.join(File.dirname(__FILE__), "../lib/**/*_decorator*.rb")).sort.each do |c|
         Rails.configuration.cache_classes ? require(c) : load(c)
       end
-    end
 
-    # OAI additions
-    Dir.glob(File.join(File.dirname(__FILE__), "../lib/oai/**/*.rb")).sort.each do |c|
-      Rails.configuration.cache_classes ? require(c) : load(c)
+      # OAI additions
+      Dir.glob(File.join(File.dirname(__FILE__), "../lib/oai/**/*.rb")).sort.each do |c|
+        Rails.configuration.cache_classes ? require(c) : load(c)
+      end
     end
 
     # resolve reloading issue in dev mode
@@ -67,6 +105,8 @@ class Application < Rails::Application
       Object.include(AccountSwitch)
     end
 
+    # copies tinymce assets directly into public/assets
+    config.tinymce.install = :copy
     ##
     # Psych Allow YAML Classes
     #
diff --git a/config/database.yml b/config/database.yml
index 865dc1c5b..bc235ae14 100644
--- a/config/database.yml
+++ b/config/database.yml
@@ -2,6 +2,7 @@
 
 login: &login
   adapter: <%= ENV['DB_ADAPTER'] || 'postgresql' %>
+  schema_search_path: "public,shared_extensions"
   host: <%= ENV['DB_HOST'] %>
   username: <%= ENV['DB_USER'] %>
   password: <%= ENV['DB_PASSWORD'] %>
diff --git a/config/fedora.yml b/config/fedora.yml
index 399e0bf4e..102e80b50 100644
--- a/config/fedora.yml
+++ b/config/fedora.yml
@@ -18,3 +18,4 @@ production:
   password: fedoraAdmin
   url: http://<%= ENV['FCREPO_HOST'] || 'localhost' %>:<%= ENV['FCREPO_PORT'] || 8080 %>/<%= ENV['FCREPO_REST_PATH'] || 'rest' %>
   base_path: <%= ENV['FCREPO_BASE_PATH'] || '/prod' %>
+  request: { timeout: 600, open_timeout: 60}
diff --git a/config/initializers/active_fedora_override.rb b/config/initializers/active_fedora_override.rb
new file mode 100644
index 000000000..58ec7fe04
--- /dev/null
+++ b/config/initializers/active_fedora_override.rb
@@ -0,0 +1,11 @@
+# Based on https://github.com/samvera/hyrax/issues/4581#issuecomment-843085122
+
+# Monkey-patch to short circuit ActiveModel::Dirty which attempts to load the whole master files ordered list when calling nodes_will_change!
+# This leads to a stack level too deep exception when attempting to delete a master file from a media object on the manage files step.
+# See https://github.com/samvera/active_fedora/pull/1312/commits/7c8bbbefdacefd655a2ca653f5950c991e1dc999#diff-28356c4daa0d55cbaf97e4269869f510R100-R103
+ActiveFedora::Aggregation::ListSource.class_eval do
+  def attribute_will_change!(attr)
+    return super unless attr == 'nodes'
+    attributes_changed_by_setter[:nodes] = true
+  end
+end
diff --git a/config/initializers/apartment.rb b/config/initializers/apartment.rb
index e523b4cdf..a2647571d 100644
--- a/config/initializers/apartment.rb
+++ b/config/initializers/apartment.rb
@@ -39,6 +39,8 @@
     # Any schemas added here will be available along with your selected Tenant.
     #
     # config.persistent_schemas = %w{ hstore }
+    config.persistent_schemas = ['shared_extensions']
+
 
     # <== PostgreSQL only options
     #
diff --git a/lib/active_fedora/solr_service_decorator.rb b/lib/active_fedora/solr_service_decorator.rb
new file mode 100644
index 000000000..b50a5749e
--- /dev/null
+++ b/lib/active_fedora/solr_service_decorator.rb
@@ -0,0 +1,20 @@
+# frozen_string_literal: true
+
+# OVERRIDE: class ActiveFedora::SolrService from Fedora 12.1.1
+module ActiveFedora
+  module SolrServiceDecorator
+    # Get the count of records that match the query
+    # @param [String] query a solr query
+    # @param [Hash] args arguments to pass through to `args' param of SolrService.query
+    # (note that :rows will be overwritten to 0)
+    # @return [Integer] number of records matching
+    #
+    # OVERRIDE: use `post` rather than `get` to handle larger query sizes
+    def count(query, args = {})
+      args = args.merge(rows: 0)
+      SolrService.post(query, args)['response']['numFound'].to_i
+    end
+  end
+end
+
+ActiveFedora::SolrService.singleton_class.send(:prepend, ActiveFedora::SolrServiceDecorator)
diff --git a/lib/tasks/db_enhancements.rake b/lib/tasks/db_enhancements.rake
new file mode 100644
index 000000000..551db56c3
--- /dev/null
+++ b/lib/tasks/db_enhancements.rake
@@ -0,0 +1,24 @@
+# frozen_string_literal: true
+
+namespace :db do
+  desc 'Also create shared_extensions Schema'
+  task extensions: :environment do
+    # Create Schema
+    ActiveRecord::Base.connection.execute 'CREATE SCHEMA IF NOT EXISTS shared_extensions;'
+    # Enable Hstore
+    ActiveRecord::Base.connection.execute 'CREATE EXTENSION IF NOT EXISTS HSTORE SCHEMA shared_extensions;'
+    # Enable UUID-OSSP
+    ActiveRecord::Base.connection.execute 'CREATE EXTENSION IF NOT EXISTS "uuid-ossp" SCHEMA shared_extensions;'
+    ActiveRecord::Base.connection.execute 'CREATE EXTENSION IF NOT EXISTS "pgcrypto" SCHEMA shared_extensions;'
+    # Grant usage to public
+    ActiveRecord::Base.connection.execute 'GRANT usage ON SCHEMA shared_extensions to public;'
+  end
+end
+
+Rake::Task["db:create"].enhance do
+  Rake::Task["db:extensions"].invoke
+end
+
+Rake::Task["db:test:purge"].enhance do
+  Rake::Task["db:extensions"].invoke
+end
diff --git a/lib/wings/services/custom_queries/find_ids_by_model_decorator.rb b/lib/wings/services/custom_queries/find_ids_by_model_decorator.rb
new file mode 100644
index 000000000..2edd1e108
--- /dev/null
+++ b/lib/wings/services/custom_queries/find_ids_by_model_decorator.rb
@@ -0,0 +1,42 @@
+# frozen_string_literal: true
+
+# OVERRIDE Hyrax 3.5 to use post instead of get for Solr requests
+
+module Wings
+  module CustomQueries
+    ##
+    # @see https://github.com/samvera/valkyrie/wiki/Queries#custom-queries
+    # @see Hyrax::CustomQueries::FindIdsByModel
+    module FindIdsByModelDecorator
+      ##
+      # @note uses solr to do the lookup
+      #
+      # @param model [Class]
+      # @param ids [Enumerable<#to_s>, Symbol]
+      #
+      # @return [Enumerable<Valkyrie::ID>]
+      def find_ids_by_model(model:, ids: :all)
+        return enum_for(:find_ids_by_model, model: model, ids: ids) unless block_given?
+        model_name = ModelRegistry.lookup(model).model_name
+
+        solr_query = "_query_:\"{!raw f=has_model_ssim}#{model_name}\""
+        solr_response = ActiveFedora::SolrService.post(solr_query, fl: 'id', rows: @query_rows)['response']
+
+        loop do
+          response_docs = solr_response['docs']
+          response_docs.select! { |doc| ids.include?(doc['id']) } unless ids == :all
+
+          response_docs.each { |doc| yield doc['id'] }
+
+          break if (solr_response['start'] + solr_response['docs'].count) >= solr_response['numFound']
+          solr_response = ActiveFedora::SolrService.post(solr_query,
+                                                         fl: 'id',
+                                                         rows: @query_rows,
+                                                         start: solr_response['start'] + @query_rows)['response']
+        end
+      end
+    end
+  end
+end
+
+Wings::CustomQueries::FindIdsByModel.prepend Wings::CustomQueries::FindIdsByModelDecorator