diff --git a/bin/setup_mitamae b/bin/setup_mitamae
deleted file mode 100755
index d12caaff..00000000
--- a/bin/setup_mitamae
+++ /dev/null
@@ -1,42 +0,0 @@
-#!/bin/sh
-# ref: https://github.com/k0kubun/dotfiles/blob/a96f59a147c8b970aa366b8239521071c2ca2f2e/bin/setup
-
-set -eu
-
-mitamae_repo="github.com/itamae-kitchen/mitamae"
-mitamae_version="1.12.7"
-
-mitamae_cache="mitamae-${mitamae_version}"
-if ! [ -f "bin/${mitamae_cache}" ]; then
-  case "$(uname)" in
-    "Darwin")
-      case "$(uname -m)" in
-        "x86_64")
-          mitamae_bin="mitamae-x86_64-darwin"
-          ;;
-        "arm64")
-          mitamae_bin="mitamae-aarch64-darwin"
-          ;;
-        *)
-          echo "unexpected uname: $(uname -m)"
-          exit 1
-      esac
-      ;;
-    "Linux")
-      mitamae_bin="mitamae-x86_64-linux"
-      ;;
-    *)
-      echo "unexpected uname: $(uname)"
-      exit 1
-      ;;
-  esac
-
-  mitamae_tarball="bin/${mitamae_bin}.tar.gz"
-  curl -o $mitamae_tarball -fL "https://${mitamae_repo}/releases/download/v${mitamae_version}/${mitamae_bin}.tar.gz"
-  tar xvzf $mitamae_tarball
-
-  rm $mitamae_tarball
-  mv "${mitamae_bin}" "bin/${mitamae_cache}"
-  chmod +x "bin/${mitamae_cache}"
-fi
-ln -sf "${mitamae_cache}" bin/mitamae
diff --git a/config/.ideavimrc b/config/.ideavimrc
deleted file mode 100644
index 1d79bff0..00000000
--- a/config/.ideavimrc
+++ /dev/null
@@ -1 +0,0 @@
-set clipboard=unnamed
diff --git a/config/.rbenv/default-gems b/config/.rbenv/default-gems
deleted file mode 100644
index e437ce33..00000000
--- a/config/.rbenv/default-gems
+++ /dev/null
@@ -1,7 +0,0 @@
-bundler
-pry
-pry-doc
-pry-coolline
-solargraph
-travis
-keycutter
diff --git a/cookbooks/android/default.rb b/cookbooks/android/default.rb
deleted file mode 100644
index 47fd5d93..00000000
--- a/cookbooks/android/default.rb
+++ /dev/null
@@ -1,8 +0,0 @@
-include_cookbook 'java'
-
-if node[:platform] == 'darwin'
-  cask 'android-sdk'
-  cask 'android-studio'
-end
-
-package 'pidcat'
diff --git a/cookbooks/android/files/.keep b/cookbooks/android/files/.keep
deleted file mode 100644
index e69de29b..00000000
diff --git a/cookbooks/android/templates/.keep b/cookbooks/android/templates/.keep
deleted file mode 100644
index e69de29b..00000000
diff --git a/cookbooks/anyenv/default.rb b/cookbooks/anyenv/default.rb
deleted file mode 100644
index c9e6f2c3..00000000
--- a/cookbooks/anyenv/default.rb
+++ /dev/null
@@ -1,34 +0,0 @@
-define :install_env_version, version: nil do
-  cmd = "#{params[:name]} install #{params[:version]}"
-  execute cmd do
-    command cmd
-    not_if "#{params[:name]} versions --bare | grep '^#{params[:version]}$'"
-  end
-end
-
-define :install_env_versions, versions: [] do
-  params[:versions].each do |v|
-    install_env_version params[:name] do
-      version v
-    end
-  end
-end
-
-define :env_global, version: nil do
-  vers = []
-  if params[:version].is_a? Array
-    vers = params[:version]
-    ver = vers.join(" ")
-  else
-    ver = params[:version]
-    vers = [ver]
-  end
-
-  cmd = "#{params[:name]} global #{ver} && #{params[:name]} rehash"
-  check_cmd = vers.map { |v| "#{params[:name]} global | grep '#{v}'" }.join(" && ")
-
-  execute cmd do
-    command cmd
-    not_if check_cmd
-  end
-end
diff --git a/cookbooks/anyenv/files/.keep b/cookbooks/anyenv/files/.keep
deleted file mode 100644
index e69de29b..00000000
diff --git a/cookbooks/anyenv/templates/.keep b/cookbooks/anyenv/templates/.keep
deleted file mode 100644
index e69de29b..00000000
diff --git a/cookbooks/docker/default.rb b/cookbooks/docker/default.rb
deleted file mode 100644
index ead3dea4..00000000
--- a/cookbooks/docker/default.rb
+++ /dev/null
@@ -1,5 +0,0 @@
-if node[:platform] == 'darwin'
-  # package 'docker'
-  cask 'docker'
-  # cask 'docker-toolbox'
-end
diff --git a/cookbooks/docker/files/.keep b/cookbooks/docker/files/.keep
deleted file mode 100644
index e69de29b..00000000
diff --git a/cookbooks/docker/templates/.keep b/cookbooks/docker/templates/.keep
deleted file mode 100644
index e69de29b..00000000
diff --git a/cookbooks/functions/default.rb b/cookbooks/functions/default.rb
deleted file mode 100644
index ca73e11b..00000000
--- a/cookbooks/functions/default.rb
+++ /dev/null
@@ -1,89 +0,0 @@
-define :dotfile, source: nil do
-  source = params[:source] || params[:name]
-  source_path = File.expand_path("../../../config/#{source}", __FILE__)
-
-  fail "#{source_path} does not exist" unless File.exist? source_path
-
-  should_force = codespaces?
-
-  target = File.join(node[:home], params[:name])
-  directory File.dirname(target)
-  link target do
-    to source_path
-    force should_force
-    user node[:user]
-  end
-end
-
-define :dotfile_template, source: nil, variables: {} do
-  template File.join(node[:home], params[:name]) do
-    action :create
-    source params[:source]
-    variables params[:variables].merge(platform: node[:platform])
-    user node[:user]
-  end
-end
-
-define :brew_tap do
-  tapname = params[:name]
-  user, repo = tapname.split('/')
-  prefix = brew_prefix
-  execute "brew tap #{tapname}" do
-    not_if "test -e #{prefix}/Homebrew/Library/Taps/#{user}/homebrew-#{repo}"
-  end
-end
-
-define :cask do
-  caskname = params[:name]
-  prefix = brew_prefix
-  execute "brew install --cask #{caskname}" do
-    not_if "ls -1 #{prefix}/Caskroom/ | grep '#{caskname}'"
-  end
-end
-
-define :github_release, repo: nil, version: nil, archive: nil, checksum: nil, bin: nil, prefix: nil do
-  bin_dir = "#{params[:prefix] || default_prefix}/bin"
-  bin = "#{bin_dir}/#{params[:name]}"
-  tmp_dir = default_tmp_dir
-  url = "https://github.com/#{params[:repo]}/releases/download/#{params[:version]}"
-  
-  directory tmp_dir do
-    user node[:user]
-  end
-
-  execute "curl -sfL -o #{tmp_dir}/#{params[:archive]} #{url}/#{params[:archive]}" do
-    user node[:user]
-    not_if "test -f #{bin}"
-  end
-
-  if params[:checksum]
-    execute "curl -sfL -o #{tmp_dir}/#{params[:checksum]} #{url}/#{params[:checksum]}" do
-      user node[:user]
-      not_if "test -f #{bin}"
-    end
-    execute "sha256sum -c #{params[:checksum]} --ignore-missing" do
-      not_if "test -f #{bin}"
-      user node[:user]
-      cwd tmp_dir
-    end
-  end
-
-  execute 'unarchive' do
-    case params[:archive]
-    when /.zip$/; command "unzip -o #{tmp_dir}/#{params[:archive]}"
-    when /.tar.gz$/; command "tar -xf #{tmp_dir}/#{params[:archive]}"
-    end
-    not_if "test -f #{bin}"
-    user node[:user]
-    cwd tmp_dir
-  end
-
-  directory bin_dir do
-    user node[:user]
-  end
-
-  execute "mv #{tmp_dir}/#{params[:bin] || params[:name]} #{bin} && chmod +x #{bin}" do
-    not_if "test -f #{bin}"
-    user node[:user]
-  end
-end
diff --git a/cookbooks/functions/files/.keep b/cookbooks/functions/files/.keep
deleted file mode 100644
index e69de29b..00000000
diff --git a/cookbooks/functions/templates/.keep b/cookbooks/functions/templates/.keep
deleted file mode 100644
index e69de29b..00000000
diff --git a/cookbooks/homebrew/default.rb b/cookbooks/homebrew/default.rb
deleted file mode 100644
index 8f01e573..00000000
--- a/cookbooks/homebrew/default.rb
+++ /dev/null
@@ -1,4 +0,0 @@
-execute 'Install Homebrew' do
-  command "/bin/bash -c \"$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)\" < /dev/null"
-  not_if "test $(which brew)"
-end
diff --git a/cookbooks/homebrew/files/.keep b/cookbooks/homebrew/files/.keep
deleted file mode 100644
index e69de29b..00000000
diff --git a/cookbooks/homebrew/templates/.keep b/cookbooks/homebrew/templates/.keep
deleted file mode 100644
index e69de29b..00000000
diff --git a/cookbooks/java/default.rb b/cookbooks/java/default.rb
deleted file mode 100644
index 5940c862..00000000
--- a/cookbooks/java/default.rb
+++ /dev/null
@@ -1,5 +0,0 @@
-package 'jenv'
-
-if node[:platform] == 'darwin'
-  package 'java'
-end
diff --git a/cookbooks/java/files/.keep b/cookbooks/java/files/.keep
deleted file mode 100644
index e69de29b..00000000
diff --git a/cookbooks/java/templates/.keep b/cookbooks/java/templates/.keep
deleted file mode 100644
index e69de29b..00000000
diff --git a/cookbooks/macos_apps/default.rb b/cookbooks/macos_apps/default.rb
deleted file mode 100644
index 9edadda0..00000000
--- a/cookbooks/macos_apps/default.rb
+++ /dev/null
@@ -1,24 +0,0 @@
-brew_tap 'homebrew/cask-versions'
-
-node[:macos_apps][:cask].each do |app|
-  cask app
-end
-
-package 'mas'
-
-define :mas, id: nil do
-  execute "Install #{params[:name]}" do
-    command "mas install #{params[:id]}"
-    not_if "mas list | grep -E '^#{params[:id]} '"
-  end
-end
-
-# execute 'mas signin' do
-#   not_if 'mas account'
-# end
-
-node[:macos_apps][:mas].each do |app|
-  mas app[:name] do
-    id app[:id]
-  end
-end
diff --git a/cookbooks/macos_apps/files/.keep b/cookbooks/macos_apps/files/.keep
deleted file mode 100644
index e69de29b..00000000
diff --git a/cookbooks/macos_apps/templates/.keep b/cookbooks/macos_apps/templates/.keep
deleted file mode 100644
index e69de29b..00000000
diff --git a/cookbooks/macos_defaults/default.rb b/cookbooks/macos_defaults/default.rb
deleted file mode 100644
index 77d959a7..00000000
--- a/cookbooks/macos_defaults/default.rb
+++ /dev/null
@@ -1,8 +0,0 @@
-defaults = node[:macos_defaults]
-
-case defaults
-when Hash
-  defaults_from_hash defaults
-when Array
-  defaults_from_hash defaults
-end
diff --git a/cookbooks/macos_defaults/files/.keep b/cookbooks/macos_defaults/files/.keep
deleted file mode 100644
index e69de29b..00000000
diff --git a/cookbooks/macos_defaults/templates/.keep b/cookbooks/macos_defaults/templates/.keep
deleted file mode 100644
index e69de29b..00000000
diff --git a/cookbooks/rbenv/default.rb b/cookbooks/rbenv/default.rb
deleted file mode 100644
index 5862a616..00000000
--- a/cookbooks/rbenv/default.rb
+++ /dev/null
@@ -1,35 +0,0 @@
-include_cookbook 'anyenv'
-rbenv_root = "#{ENV["HOME"]}/.rbenv"
-
-package 'rbenv'
-
-directory "#{rbenv_root}/plugins" do
-  action :create
-end
-
-git "#{rbenv_root}/plugins/rbenv-default-gems" do
-  repository 'https://github.com/sstephenson/rbenv-default-gems'
-  revision 'de4ff2e101c9221dcd92ed91a41edcea2be41945'
-end
-
-file "#{rbenv_root}/default-gems" do
-  content "#{(node.dig(:rbenv, :'default-gems') || []).join("\n")}\n"
-end
-
-install_env_versions 'rbenv' do
-  versions node.dig(:rbenv, :versions)
-end
-
-env_global 'rbenv' do
-  version node.dig(:rbenv, :global)
-end
-
-(node.dig(:rbenv, :versions) || []).each do |v|
-  (node.dig(:rbenv, :'default-gems') || []).each do |pkg|
-    gem = "RBENV_VERSION=#{v} rbenv exec gem"
-    execute "Install #{pkg} on Ruby v#{v}" do
-      command "#{gem} install #{pkg}"
-      not_if "#{gem} list -i -e #{pkg}"
-    end
-  end
-end
diff --git a/cookbooks/rbenv/files/.keep b/cookbooks/rbenv/files/.keep
deleted file mode 100644
index e69de29b..00000000
diff --git a/cookbooks/rbenv/templates/.keep b/cookbooks/rbenv/templates/.keep
deleted file mode 100644
index e69de29b..00000000
diff --git a/cookbooks/rust/default.rb b/cookbooks/rust/default.rb
deleted file mode 100644
index a6a51576..00000000
--- a/cookbooks/rust/default.rb
+++ /dev/null
@@ -1 +0,0 @@
-# rustup component add rls rust-analysis rust-src
diff --git a/cookbooks/rust/files/.keep b/cookbooks/rust/files/.keep
deleted file mode 100644
index e69de29b..00000000
diff --git a/cookbooks/rust/templates/.keep b/cookbooks/rust/templates/.keep
deleted file mode 100644
index e69de29b..00000000
diff --git a/cookbooks/tools/default.rb b/cookbooks/tools/default.rb
deleted file mode 100644
index 91e0c4a0..00000000
--- a/cookbooks/tools/default.rb
+++ /dev/null
@@ -1,11 +0,0 @@
-package 'colordiff'
-package 'coreutils'
-package 'curl'
-package 'gcc'
-package 'gibo'
-package 'lua'
-package 'lv'
-package 'protobuf'
-package 'terraform'
-package 'watchman'
-package 'wget'
diff --git a/cookbooks/tools/files/.keep b/cookbooks/tools/files/.keep
deleted file mode 100644
index e69de29b..00000000
diff --git a/cookbooks/tools/templates/.keep b/cookbooks/tools/templates/.keep
deleted file mode 100644
index e69de29b..00000000
diff --git a/cookbooks/whalebrew/default.rb b/cookbooks/whalebrew/default.rb
deleted file mode 100644
index 3292f3ff..00000000
--- a/cookbooks/whalebrew/default.rb
+++ /dev/null
@@ -1,7 +0,0 @@
-bin = "#{brew_prefix}/bin/whalebrew"
-ver = '0.1.0'
-
-execute 'Install whalebrew' do
-  command "curl -L \"https://github.com/bfirsh/whalebrew/releases/download/#{ver}/whalebrew-$(uname -s)-$(uname -m)\" -o #{bin}; chmod +x #{bin}"
-  not_if "test -e #{bin}"
-end
diff --git a/cookbooks/whalebrew/files/.keep b/cookbooks/whalebrew/files/.keep
deleted file mode 100644
index e69de29b..00000000
diff --git a/cookbooks/whalebrew/templates/.keep b/cookbooks/whalebrew/templates/.keep
deleted file mode 100644
index e69de29b..00000000
diff --git a/lib/recipe.rb b/lib/recipe.rb
deleted file mode 100644
index 2d1d8606..00000000
--- a/lib/recipe.rb
+++ /dev/null
@@ -1,12 +0,0 @@
-include_recipe 'recipe_helper'
-
-Dir.glob(File.join(root_dir, 'nodes', '**', '*.{yml,yaml,json}')).each do |path|
-  include_node path
-end
-
-node.reverse_merge!(
-    user: default_user,
-    home: home_dir,
-)
-
-include_role node[:platform]
diff --git a/lib/recipe_helper.rb b/lib/recipe_helper.rb
deleted file mode 100644
index 66a34b85..00000000
--- a/lib/recipe_helper.rb
+++ /dev/null
@@ -1,98 +0,0 @@
-MItamae::RecipeContext.class_eval do
-  def include_cookbook(name)
-    include_recipe File.join(root_dir, 'cookbooks', name, 'default')
-  end
-
-  def include_role(name)
-    include_recipe File.join(root_dir, 'roles', name, 'default')
-  end
-
-  def codespaces?
-    ENV['CODESPACES'] == 'true'
-  end
-
-  def root_dir
-    @root_dir ||= File.expand_path('../..', __FILE__)
-  end
-
-  def brew_prefix
-    arch = `uname -m`.chomp
-    case arch
-    when 'x86_64'; '/usr/local'
-    when 'arm64';  '/opt/homebrew'
-    else fail "unknown arch: #{arch}"
-    end
-  end
-
-  def default_prefix
-    "#{home_dir}/.local"
-  end
-
-  def default_bin_dir
-    "#{default_prefix}/bin"
-  end
-
-  def default_tmp_dir
-    "#{home_dir}/.tmp"
-  end
-
-  def default_user
-    ENV['SUDO_USER'] || ENV['USER']
-  end
-
-  def home_dir
-    File.expand_path("~#{default_user}")
-  end
-
-  def include_node(path)
-    raw = File.read(path)
-    content =
-      case File.extname(path)
-      when '.yml', '.yaml' then YAML.load(raw)
-      when '.json' then JSON.parse(raw)
-      end
-
-    node.reverse_merge!(content)
-  end
-
-  def type_from_value value
-    case value
-    when String      then 'string'
-    # when ???       then 'data'
-    when Integer     then 'int'
-    when Float       then 'float'
-    when TrueClass   then 'bool'
-    when FalseClass  then 'bool'
-    # when ???       then 'date'
-    when Array       then 'array'
-    # when ???       then 'array-add'
-    # when ???       then 'dict'
-    # when ???       then 'dict-add'
-    else
-      fail "Unexpected type: #{value} (#{value.class})"
-    end
-  end
-
-  def execute_macos_defaults(defaults, domain = 'NSGlobalDomain')
-    key = defaults[:key]
-    value = defaults[:value]
-    type = defaults[:type] || type_from_value(value)
-    execute "defaults write #{domain} #{key} -#{type} #{value}" do
-      not_if "defaults read #{domain} #{key} | grep -q -E '^#{value}$'"
-    end
-  end
-
-  def defaults_from_hash defaults_by_domain
-    defaults_by_domain.each do |domain, defaults_list|
-      defaults_list.each do |defaults|
-        execute_macos_defaults(defaults, domain)
-      end
-    end
-  end
-
-  def defaults_from_array defaults_list
-    defaults_list.each do |defaults|
-      execute_macos_defaults(defaults)
-    end
-  end
-end
diff --git a/nodes/macos_apps.yml b/nodes/macos_apps.yml
deleted file mode 100644
index d8949412..00000000
--- a/nodes/macos_apps.yml
+++ /dev/null
@@ -1,34 +0,0 @@
-macos_apps:
-  cask:
-  - 1password
-  - authy
-  - alacritty
-  - alfred
-  - appcleaner
-  - bettertouchtool
-  - contexts
-  - dash
-  - dropbox
-  - google-chrome
-  - google-japanese-ime
-  - grammarly
-  - karabiner-elements
-  - notion
-  - macfuse # for telepresence
-  - spotify
-  - visual-studio-code-insiders
-  - zoom
-
-  mas:
-  - name: 'Display Menu'
-    id: 549083868
-  - name: 'Keynote'
-    id: 409183694
-  - name: 'PopClip'
-    id: 445189367
-  - name: 'Xcode'
-    id: 497799835
-  - name: 'Todoist'
-    id: 585829637
-  - name: 'Slack'
-    id: 803453959
diff --git a/nodes/macos_defaults.yml b/nodes/macos_defaults.yml
deleted file mode 100644
index c133a22c..00000000
--- a/nodes/macos_defaults.yml
+++ /dev/null
@@ -1,58 +0,0 @@
-macos_defaults:
-  NSGlobalDomain:
-  - key: KeyRepeat
-    value: 1
-
-  - key: InitialKeyRepeat
-    value: 10
-
-  - key: com.apple.mouse.scaling
-    value: 2
-
-  - key: com.apple.scrollwheel.scaling
-    value: 2
-
-  - key: com.apple.trackpad.scaling
-    value: 2
-
-  com.apple.dock:
-  - key: autohide
-    value: 1
-
-  - key: orientation
-    value: right
-
-  com.apple.finder:
-  - key: ShowPathbar
-    value: 1
-
-  - key: ShowPreviewPane
-    value: 1
-
-  - key: ShowStatusBar
-    value: 1
-
-  - key: ShowTabView
-    value: 1
-
-  - key: AppleShowAllFiles
-    value: 1
-
-  com.apple.menuextra.battery:
-  - key: ShowPercent
-    value: "YES"
-
-  com.apple.screensaver:
-  - key: askForPassword
-    value: 1
-
-  - key: askForPasswordDelay
-    value: 60
-
-  com.microsoft.VSCodeInsiders:
-  - key: ApplePressAndHoldEnabled
-    value: false
-
-  com.apple.screencapture:
-  - key: location
-    value: ~/Downloads
diff --git a/nodes/rbenv.yml b/nodes/rbenv.yml
deleted file mode 100644
index 45073d2b..00000000
--- a/nodes/rbenv.yml
+++ /dev/null
@@ -1,14 +0,0 @@
-rbenv:
-  global: 3.0.2
-  versions:
-  - 2.6.8
-  - 2.7.4
-  - 3.0.2
-  default-gems:
-  - bundler
-  - pry
-  - pry-doc
-  - pry-coolline
-  - solargraph
-  - travis
-  - keycutter
diff --git a/nodes/yarn.yml b/nodes/yarn.yml
deleted file mode 100644
index dac02271..00000000
--- a/nodes/yarn.yml
+++ /dev/null
@@ -1,2 +0,0 @@
-yarn:
-  version: 1.12.3
diff --git a/roles/darwin/default.rb b/roles/darwin/default.rb
deleted file mode 100644
index ed44ad8b..00000000
--- a/roles/darwin/default.rb
+++ /dev/null
@@ -1,10 +0,0 @@
-include_cookbook 'functions'
-
-include_cookbook 'homebrew'
-include_cookbook 'rbenv'
-include_cookbook 'android'
-include_cookbook 'docker'
-include_cookbook 'whalebrew'
-include_cookbook 'macos_apps'
-include_cookbook 'tools'
-include_cookbook 'macos_defaults'
diff --git a/roles/darwin/files/.keep b/roles/darwin/files/.keep
deleted file mode 100644
index e69de29b..00000000
diff --git a/roles/darwin/templates/.keep b/roles/darwin/templates/.keep
deleted file mode 100644
index e69de29b..00000000
diff --git a/roles/debian/default.rb b/roles/debian/default.rb
deleted file mode 100644
index 938f7f29..00000000
--- a/roles/debian/default.rb
+++ /dev/null
@@ -1,16 +0,0 @@
-include_cookbook 'functions'
-
-# include_cookbook 'rbenv'
-# include_cookbook 'pyenv'
-# include_cookbook 'nodenv'
-# include_cookbook 'yarn'
-# include_cookbook 'golang'
-# include_cookbook 'android'
-# include_cookbook 'hammerspoon'
-# include_cookbook 'alacritty'
-# include_cookbook 'docker'
-# include_cookbook 'whalebrew'
-# include_cookbook 'tools'
-# include_cookbook 'fonts'
-# include_cookbook 'macos_apps'
-# include_cookbook 'macos_defaults'
diff --git a/roles/debian/files/.keep b/roles/debian/files/.keep
deleted file mode 100644
index e69de29b..00000000
diff --git a/roles/debian/templates/.keep b/roles/debian/templates/.keep
deleted file mode 100644
index e69de29b..00000000
diff --git a/roles/ubuntu b/roles/ubuntu
deleted file mode 120000
index c543a70e..00000000
--- a/roles/ubuntu
+++ /dev/null
@@ -1 +0,0 @@
-./debian
\ No newline at end of file