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+<p align="center">
+  <img src="resource/icon.png" alt="Logo" width="120">
+</p>
+
 # ccshell
 
-A complex (or simple?) shell implemented in C++ (some C codes will be replaced by C++ soon, but anyway C is still subset of C++)
+A complex (or simple?) shell implemented in C++ (some C codes (job control) will be replaced by C++ soon, but anyway C is still subset of C++)
 
-NO AI/Codex/Claude Code/Antigravity
+NO vibe coding / AI / Codex / Claude Code / Antigravity / Cursor / Kiro
 
 Only the very traditional methods (stack overflow, man, cpp reference, etc.) are used
 
-Very simple and boring things (just job CRUD, really) are copied from CS:APP (I did that lab, so they're here), but will be refactored soon
+👉 I am just learning these stuff as doing this project, so if you find something stupid, please just open issue/PR 😭
+
+~~Very simple and boring things (just job CRUD, really) are copied from CS:APP (I did that lab, so they're here), but will be refactored soon~~ 👉 Job system will be rewritten, because CSAPP job model is not how sh/bash/zsh works, and then it will be in C++
+
+## Feature
 
-a VERY FANTASTIC PARSER is being done
+Support very complex syntax with a systematic language analysis system (it is implemented with recursion, thus it would not have any problems with long command)
+- async command (aka background)
+- logic operators based on exit value
+- brackets
+- multiple commands
+- TODO: pipeline, expansion, etc.
+
+A fantastic line editor has been DONE, and it will be adapted very SOON! 😘
 
 ## Build
 
+👉 ISO C++26 is used, please make sure gcc-14 or above is installed, and gcc-15/16 is most recommended 
+
+(clang doesn't work well, don't use it!)
+
 ```sh
-make
+make magic-enum # download dependencies
+make # build project
 ```
 
 ## Usage
 
+Valid options can be found here `include/option.h`
+
+Or just run without any options
+
 ```sh
 build/ccshell
 ```
 
-ignore this test
+## Development 
+
+ignore the test file (deprecated)
 ```sh
 git update-index --skip-worktree src/test.cc
 ```