diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..4834e46
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,44 @@
+*.gem
+*.rbc
+*.so
+
+/.byebug_history
+/.config/
+/.rake_tasks~
+/InstalledFiles/
+/pkg/
+/tmp/
+
+# Used by dotenv library to load environment variables.
+/.env
+
+# RSpec configuration and generated files.
+/.rspec
+/coverage/
+/spec/examples.txt
+/spec/reports/
+/test/tmp/
+/test/version_tmp/
+
+# Documentation cache and generated files.
+/.yardoc/
+/_yardoc/
+/doc/
+/rdoc/
+
+# Environment normalization.
+/.bundle/
+/vendor/bundle/
+/lib/bundler/man/
+
+# For a library or gem, you might want to ignore these files since the code is
+# intended to run in multiple environments; otherwise, check them in.
+/Gemfile.lock
+/.ruby-version
+/.ruby-gemset
+
+# Unless supporting rvm < 1.11.0 or doing something fancy, ignore this.
+/.rvmrc
+
+# Used by RuboCop. Remote config files pulled in from inherit_from directive.
+/.rubocop-https?--*
diff --git a/Gemfile b/Gemfile
new file mode 100644
index 0000000..3b87b26
--- /dev/null
+++ b/Gemfile
@@ -0,0 +1,6 @@
+# frozen_string_literal: true
+
+source 'https://rubygems.org'
+
+# Specify your gem's dependencies in diversipub.gemspec
+gemspec
diff --git a/Rakefile b/Rakefile
new file mode 100644
index 0000000..42b739c
--- /dev/null
+++ b/Rakefile
@@ -0,0 +1,10 @@
+# frozen_string_literal: true
+
+require 'bundler/gem_tasks'
+
+task default: []
+
+desc 'Open development console'
+task :console do
+  sh 'bundle', 'exec', File.expand_path(File.join('bin', 'console'), __dir__)
+end
diff --git a/bin/console b/bin/console
new file mode 100755
index 0000000..96ce2c4
--- /dev/null
+++ b/bin/console
@@ -0,0 +1,8 @@
+#!/usr/bin/env ruby
+# frozen_string_literal: true
+
+require 'bundler/setup'
+require 'diversipub'
+require 'pry'
+
+Pry.start
diff --git a/bin/setup b/bin/setup
new file mode 100755
index 0000000..b0f0b0a
--- /dev/null
+++ b/bin/setup
@@ -0,0 +1,7 @@
+#!/bin/sh
+
+set -eux
+
+bundle install
+
+# Do any other automated setup that you need to do here
diff --git a/diversipub.gemspec b/diversipub.gemspec
new file mode 100644
index 0000000..d8a8a83
--- /dev/null
+++ b/diversipub.gemspec
@@ -0,0 +1,46 @@
+# frozen_string_literal: true
+
+require_relative 'lib/diversipub/version'
+
+Gem::Specification.new do |spec|
+  repo = 'https://git.causa-arcana.com/causa-arcana/diversipub'
+  home = repo
+  bugs = "#{repo}/issues"
+  docs = "https://www.rubydoc.info/gems/diversipub/#{Diversipub::VERSION}"
+
+  spec.name     = 'diversipub'
+  spec.version  = Diversipub::VERSION
+  spec.license  = 'MIT'
+  spec.homepage = home
+  spec.platform = Gem::Platform::RUBY
+
+  spec.required_ruby_version = '~> 3.0'
+
+  spec.authors = ['Alex Kotov']
+  spec.email   = ['kotovalexarian@gmail.com']
+
+  spec.summary = ''
+
+  spec.description = <<~DESCRIPTION.split("\n").map(&:strip).join ' '
+  DESCRIPTION
+
+  spec.metadata['rubygems_mfa_required'] = 'true'
+  spec.metadata['homepage_uri']          = home
+  spec.metadata['source_code_uri']       = home
+  spec.metadata['bug_tracker_uri']       = bugs
+  spec.metadata['documentation_uri']     = docs
+
+  spec.bindir        = 'exe'
+  spec.require_paths = ['lib']
+
+  spec.files = Dir.chdir File.expand_path __dir__ do
+    `git ls-files -z`.split("\x0").reject do |f|
+      f.match %r{\A(?:test|spec|features)/}
+    end
+  end
+
+  spec.executables = spec.files.grep(%r{\Aexe/}) { |f| File.basename f }
+
+  spec.add_development_dependency 'pry',  '~> 0.14'
+  spec.add_development_dependency 'rake', '~> 13.0'
+end
diff --git a/exe/diversipub b/exe/diversipub
new file mode 100755
index 0000000..dd3a09c
--- /dev/null
+++ b/exe/diversipub
@@ -0,0 +1,4 @@
+#!/usr/bin/env ruby
+# frozen_string_literal: true
+
+require 'diversipub'
diff --git a/lib/diversipub.rb b/lib/diversipub.rb
new file mode 100644
index 0000000..cbe2631
--- /dev/null
+++ b/lib/diversipub.rb
@@ -0,0 +1,3 @@
+# frozen_string_literal: true
+
+require_relative 'diversipub/version'
diff --git a/lib/diversipub/version.rb b/lib/diversipub/version.rb
new file mode 100644
index 0000000..82c96ae
--- /dev/null
+++ b/lib/diversipub/version.rb
@@ -0,0 +1,5 @@
+# frozen_string_literal: true
+
+module Diversipub
+  VERSION = '0.0.0'
+end