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+<!-- -----------------------------------------------------------
+ ! SPDX-License-Identifier: GFDL-1.3-or-later
+ ! -------------------------------------------------------------
+ ! Doc Type      : Markdown
+ ! Doc Name      : 01-Develop.md
+ ! Doc Authors   : Aoran Zeng <ccmywish@qq.com>
+ ! Contributors  :  Nul None  <nul@none.org>
+ !               |
+ ! Created On    : <2025-07-21>
+ ! Last Modified : <2025-07-21>
+ ! ---------------------------------------------------------- -->
+
+# Develop `rawstr4c`
+
+## Dependencies and Dev environment
+
+Please install these first:
+
+  1. [rakudo]
+  2. [just]
+
+<br>
+
+
+
+## Get code
+
+**Please make sure to use the dev branch for development**
+
+```bash
+git clone https://gitee.com/RubyMetric/chsrc.git -b dev
+```
+
+<br>
+
+
+
+## Run
+
+```bash
+just rawstr4c
+```
+
+```bash
+zef install .
+
+rawstr4c
+
+zef uninstall rawstr4c
+```
+
+<br>
+
+
+
+## Debug
+
+```bash
+just rawstr4c --debug
+# Note: there must be an = between option value and option
+just rawstr4c --debug=parser
+just rawstr4c --debug=generator
+```
+
+<br>
+
+
+
+## Test
+
+Run test scripts
+
+```bash
+cd test
+
+raku ./xx-file.rakutest
+```
+
+Test executable file
+
+```bash
+just rawstr4c
+```
+
+<br>
+
+
+
+[rakudo]: https://rakudo.org/
+[just]: https://github.com/casey/just