diff --git a/.gitignore b/.gitignore
index 8026d72..ee52b09 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,3 +2,4 @@
 mruby
 build
 .cache
+*.tar.gz
diff --git a/README.md b/README.md
index 772807e..e422e93 100644
--- a/README.md
+++ b/README.md
@@ -16,6 +16,7 @@ MacOS
 Debian/Ubuntu/Mint Linux
 
 - AMD64 ✅
+- ARM64 ✅
 
 ---
 
@@ -29,31 +30,36 @@ Ruby3 提供 Rake
 
 ```
 ➜  build git:(main) rake -T
-rake build[enter,output]  # build program
-rake compiler:build       # build mruby
-rake compiler:download    # download mruby
-rake init                 # init
-rake install              # install
-rake run[enter]           # run program
+rake build               # build program
+rake build_merge         # merge program in build
+rake build_to_c          # build to c code
+rake cache_merge         # merge program in cache
+rake clean               # clean
+rake init_build          # init build dir
+rake init_cache          # init develop cache dir
+rake mruby:build         # build mruby
+rake mruby:build_config  # replace mruby build config
+rake mruby:custom_build  # custom config build mruby
+rake mruby:download      # download mruby
+rake mruby:init          # init
+rake run                 # run program
 ```
 
-## 2.初次使用
+## 1.模仿 golang 的 go run
 
-`rake init` 初始化编译器
+`rake run`
 
-## 3.模仿 golang 的 go run
+## 2.模仿 golang 的 go build
 
-`rake 'run[main.rb]'`
+`rake build`
 
-## 4.模仿 golang 的 go build
+## 3.交叉编译的包
 
-`rake 'build[main.rb]'`
+借助 Github Action 在 main 分支推送后，查看 Action 构建任务，下载产物
 
 ## TODO
 
-- [ ] 交叉编译
-- [ ] 添加基本的 gem
-- [ ] 将编译器编译成 portable mruby 跳过本地编译
+- [x] 交叉编译
 - [x] 多文件
 
 ## 约定
diff --git a/Rakefile b/Rakefile
index f2b7f72..ec32a24 100644
--- a/Rakefile
+++ b/Rakefile
@@ -63,7 +63,7 @@ end
 namespace :mruby do
   desc "download mruby"
   task :download do
-    if !File.exist?("#{MRUBY_BIN}/mruby")
+    if !File.exist?("#{MRUBY_BIN}")
       sh "rm -rf .tmp ; rm -rf #{MRUBY_DIR}"
       sh "mkdir .tmp; mkdir -p #{COMPILER_DIR}"
       sh "wget -O .tmp/#{MRUBY_NAME}.zip #{MRUBY_URL}"
@@ -88,18 +88,13 @@ namespace :mruby do
   end
 
   desc "init"
-  task :init => [:"mruby:download", :"mruby:build" ] do
-    if !File.exist? MRUBY_BUILD_CONFIG
-      sh "cp #{MRUBY_DIR}/build_config/default.rb #{MRUBY_BUILD_CONFIG}"
-    end
+  task :init => [:"mruby:download"] do
     puts "init mruby #{MRUBY_NAME}"
   end
 
   desc "custom config build mruby"
   task :custom_build do
-    if file_content_change?(MRUBY_BUILD_CONFIG, "#{MRUBY_DIR}/build_config/#{APP_NAME}_config.rb")
-      sh "cd #{MRUBY_DIR} && rake MRUBY_CONFIG=#{APP_NAME}_config"
-    end
+    sh "cd #{MRUBY_DIR} && rake MRUBY_CONFIG=#{APP_NAME}_config"
   end
 
 end
@@ -128,7 +123,7 @@ task :build_merge => [:init_build] do
 end
 
 desc "run program"
-task :run => [:cache_merge, :"mruby:custom_build"] do
+task :run => [:"mruby:init", :"mruby:build_config", :"mruby:custom_build", :cache_merge] do
   sh "#{MRUBY} #{CACHE_DIR}/main.rb"
 end
 
@@ -164,13 +159,12 @@ end
 
 
 desc "build program"
-task :build => [:"mruby:init", :build_merge, :build_to_c, :"mruby:build_config", :"mruby:custom_build"] do
+task :build => [:"mruby:init", :"mruby:build_config", :"mruby:custom_build", :build_merge, :build_to_c] do
   sh "cc -std=c99 -I#{MRUBY_INCLUDE} #{BUILD_DIR}/*.c -o #{BUILD_DIR}/#{APP_NAME} #{MRUBY_LIB}/libmruby.a -lm"
-  ## TODO portable need gems
-  # sh "mkdir -p #{BUILD_DIR}/portable/"
-  # sh "cp #{MRUBY_BIN}/mruby #{BUILD_DIR}/portable/"
-  # sh "mv #{BUILD_DIR}/main.rb #{BUILD_DIR}/portable/"
-  sh "rm #{BUILD_DIR}/*.h; rm #{BUILD_DIR}/*.c; rm #{BUILD_DIR}/*.rb"
+  sh "mkdir -p #{BUILD_DIR}/portable/"
+  sh "cp #{MRUBY_BIN}/mruby #{BUILD_DIR}/portable/"
+  sh "mv #{BUILD_DIR}/main.rb #{BUILD_DIR}/portable/"
+  sh "rm -f #{BUILD_DIR}/*.h; rm -f #{BUILD_DIR}/*.c; rm -f #{BUILD_DIR}/*.rb"
   sh "tar -czvf app.tar.gz #{BUILD_DIR}"
 end