diff --git a/.gitignore b/.gitignore
index 43bea61..ac73a47 100644
--- a/.gitignore
+++ b/.gitignore
@@ -32,3 +32,7 @@ build
 
 # external
 external/
+
+# dot file and svg file
+*.dot
+*.svg
diff --git a/README.md b/README.md
index 2627de5..df3d8b5 100644
--- a/README.md
+++ b/README.md
@@ -1,15 +1,35 @@
-# Simple Models C Compiler
+# Simple C Compiler
 
-> Smaller Compiler(SMCC)
+> `scc`
 
-This is a simple C compiler that generates executable code from a simple c99 sub programming language. The language supports basic operations such as arithmetic, logical, conditional statements and if else while for switch case statements and function calls and system calls.
+这是一个简单的C语言编译器，可以从C99子集编程语言生成可执行代码。该语言支持基本操作，如算术运算、逻辑运算、条件语句（if/else）、循环语句（while/for）、分支语句（switch/case）、函数调用以及内联汇编调用（asm）。 
 
-## Features
+## Builder
 
-- 隔离标准库
+该编译器使用`cbuild` 构建，设计思路来源于`rust`的构建工具`cargo`，以默认行为代替掉`make`、`cmake`等构建工具。
 
-- 轻量化
+> 由于整个项目除了测试代码，完全没有任何依赖，真正做到`0依赖`，所以无需复杂的依赖管理
+TODO 未来构建工具本身也会使用c或者lua等可轻松自举的系统重构
 
-- 模块化
+### [cbuild](./tools/cbuild/cbuild.py)
 
-- 自举构建
+常用命令：
+
+- 构建项目: `cbuild build`
+- 运行程序: `cbuild run`
+- 运行测试: `cbuild test`
+- 清理构建产物: `cbuild clean`
+- 查看依赖树: `cbuild tree`
+
+## 标准C语言文档链接
+
+- [open-std](https://www.open-std.org/)
+- [C - Project status and milestones](https://www.open-std.org/JTC1/SC22/WG14/www/projects#9899)
+- [ISO/IEC 9899:1999](https://www.open-std.org/JTC1/SC22/WG14/www/docs/n1256.pdf)
+
+## 项目特点
+
+- **隔离标准库**: 不直接依赖标准库实现，提高可移植性
+- **轻量化**: 专注于核心功能，减少冗余组件
+- **模块化**: 采用模块化设计，易于扩展和维护
+- **自举构建**: 支持通过自身编译器构建项目
diff --git a/justfile b/justfile
index 7723bb7..1b37b2b 100644
--- a/justfile
+++ b/justfile
@@ -1,11 +1,15 @@
 list:
   just --list
 
-build-lexer:
-	python build.py build -p libs/lexer
-
-build-docs:
+build_docs:
 	doxygen Doxyfile
 
-docs: build-docs
+docs: build_docs
 	python -m http.server -d docs/html
+
+count:
+	# you need download `tokei` it can download by cargo
+	tokei libs runtime src -e tests
+
+build_lexer:
+	python ./tools/cbuild/cbuild.py --path libs/lexer build
diff --git a/libs/tree_dump/include/tree_dump.h b/libs/tree_dump/include/tree_dump.h
index 18bac72..d6392be 100644
--- a/libs/tree_dump/include/tree_dump.h
+++ b/libs/tree_dump/include/tree_dump.h
@@ -80,7 +80,7 @@ static inline void scc_tree_dump_push_level(scc_tree_dump_ctx_t *ctx,
 
 // 弹出当前层级
 static inline void scc_tree_dump_pop_level(scc_tree_dump_ctx_t *ctx) {
-    scc_vec_pop(ctx->stack);
+    (void)scc_vec_pop(ctx->stack);
 }
 
 // 获取当前层级深度