diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 451fc9867..8cea3e2f0 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -27,20 +27,20 @@ jobs:
       fail-fast: false
       matrix:
         ruby:
+        - '3.4'
         - '3.3'
         - '3.2'
         - '3.1'
-        - '3.0'
         include:
-        - ruby: '3.3'
+        - ruby: '3.4'
           use_dry_transformer_master: 'true'
-          use_use_rom_sql_master: 'true'
+          use_dry_initializer_main: 'true'
     env:
       COVERAGE: "${{matrix.coverage}}"
       COVERAGE_TOKEN: "${{secrets.CODACY_PROJECT_TOKEN}}"
       BASE_DB_URI: localhost/rom_repository
       USE_DRY_TRANSFORMER_MASTER: "${{matrix.use_dry_transformer_master}}"
-      USE_ROM_SQL_MASTER: "${{matrix.use_rom_sql_master}}"
+      USE_DRY_INITIALIZER_MAIN: "${{matrix.use_dry_initializer_main}}"
       CODACY_RUN_LOCAL: "${{matrix.coverage}}"
       CODACY_PROJECT_TOKEN: "${{secrets.CODACY_PROJECT_TOKEN}}"
       APT_DEPS: libpq-dev libsqlite3-dev
diff --git a/Gemfile b/Gemfile
index bb5d1a382..b1ed56757 100644
--- a/Gemfile
+++ b/Gemfile
@@ -16,6 +16,10 @@ if ENV['USE_TRANSPROC_MASTER'].eql?('true')
   gem 'transproc', github: 'solnic/transproc', branch: 'master'
 end
 
+if ENV['USE_DRY_INITIALIZER_MAIN'].eql?('true')
+  gem 'dry-initializer', github: 'dry-rb/dry-initializer', branch: 'main'
+end
+
 group :sql do
   gem 'sequel', '~> 5.0'
   gem 'sqlite3', platforms: :ruby
@@ -49,8 +53,12 @@ group :docs do
 end
 
 group :tools do
-  gem 'pry'
-  gem 'pry-byebug', platforms: :ruby
+  if Gem::Version.new(RUBY_VERSION) >= Gem::Version.new('3.4.0')
+    gem 'debug', platforms: :ruby
+  else
+    gem 'pry'
+    gem 'pry-byebug', platforms: :ruby
+  end
 end
 
 group :benchmarks do
diff --git a/bin/console b/bin/console
index f46e6a271..6050d4b84 100755
--- a/bin/console
+++ b/bin/console
@@ -5,12 +5,17 @@ require 'bundler'
 
 Bundler.setup
 
-require 'pry'
 require 'rom-repository'
 require 'rom-changeset'
-require 'pry-byebug'
 require 'dry/monitor'
 
+%w[pry-byebug debug pry].each do |gem|
+  require gem
+rescue LoadError
+else
+  break
+end
+
 config = ROM::Configuration.new(:sql, 'postgres://localhost/rom_console')
 notifications = Dry::Monitor::Notifications.new(:console)
 
diff --git a/changeset/spec/spec_helper.rb b/changeset/spec/spec_helper.rb
index a80ea9c97..37451db46 100644
--- a/changeset/spec/spec_helper.rb
+++ b/changeset/spec/spec_helper.rb
@@ -18,10 +18,11 @@
 Warning.ignore(/__LINE__/)
 Warning.process { |w| raise w } if ENV['FAIL_ON_WARNINGS'].eql?('true')
 
-begin
-  require 'pry'
-  require 'pry-byebug'
+%w[pry-byebug debug pry].each do |gem|
+  require gem
 rescue LoadError
+else
+  break
 end
 
 require 'rom-changeset'
diff --git a/changeset/spec/unit/changeset_spec.rb b/changeset/spec/unit/changeset_spec.rb
index 5b01e6662..f68b5ae72 100644
--- a/changeset/spec/unit/changeset_spec.rb
+++ b/changeset/spec/unit/changeset_spec.rb
@@ -171,8 +171,13 @@
       subject(:changeset) { ROM::Changeset::Create.new(relation).data(name: 'Jane') }
 
       specify do
-        expect(changeset.inspect)
-          .to eql('#<ROM::Changeset::Create relation=:users data={:name=>"Jane"}>')
+        if Gem::Version.new(RUBY_VERSION) >= Gem::Version.new('3.4.0')
+          expect(changeset.inspect)
+            .to eql('#<ROM::Changeset::Create relation=:users data={name: "Jane"}>')
+        else
+          expect(changeset.inspect)
+            .to eql('#<ROM::Changeset::Create relation=:users data={:name=>"Jane"}>')
+        end
       end
     end
 
diff --git a/core/spec/spec_helper.rb b/core/spec/spec_helper.rb
index f7fad14e9..b1509a48a 100644
--- a/core/spec/spec_helper.rb
+++ b/core/spec/spec_helper.rb
@@ -18,10 +18,11 @@
 
 Dry::Core::Deprecations.set_logger!(SPEC_ROOT.join('../log/deprecations.log'))
 
-begin
-  require 'pry'
-  require 'pry-byebug'
+%w[pry-byebug debug pry].each do |gem|
+  require gem
 rescue LoadError
+else
+  break
 end
 
 module SpecProfiler
diff --git a/repository/spec/spec_helper.rb b/repository/spec/spec_helper.rb
index 0d88ef263..69993f7b7 100644
--- a/repository/spec/spec_helper.rb
+++ b/repository/spec/spec_helper.rb
@@ -21,10 +21,11 @@
 require 'rom-sql'
 require 'rom-repository'
 
-begin
-  require 'pry'
-  require 'pry-byebug'
+%w[pry-byebug debug pry].each do |gem|
+  require gem
 rescue LoadError
+else
+  break
 end
 
 LOGGER = Logger.new(File.open('./log/test.log', 'a'))