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+# 贡献
+
+## lilac
+
+Packages 仓库是由 lilac 构建的。 lilac 通过 lilac 相关文件，如 `lilac.yaml` 和 `lilac.py`，进行更新。它同时允许用户通过 PKGBUILD 构建仓库。
+
+## PKGBUILD
+
+The PKGBUILD writing guide is give by [PKGBUILD page](https://wiki.archlinux.org/title/PKGBUILD) on ArchWiki, you can find different ways to write PKGBUILD developed by coding language.
+
+Also, you can refer to the [AUR](https://wiki.archlinux.org/title/PKGBUILD) if you are a beginner. And the [Arch Forum](https://bbs.archlinux.org/) and our [discussions](https://github.com/BioArchLinux/Packages/discussions) would be a great place to discuss the related issues.
+
+## `lilac.yaml`
+
+`lilac.yaml` is the required file for lilac. The regular [writing guide](https://archlinuxcn.github.io/lilac/) is provided by archlinuxcn. API is listed [here](https://lilac.readthedocs.io/en/latest/api.html) and Q&A is posted [here](https://wiki.archlinuxcn.org/wiki/Lilac_%E5%B8%B8%E8%A7%81%E9%97%AE%E9%A2%98#%E6%9B%B4%E6%96%B0_AUR) by wiki of archlinuxcn.
+
+For the lilac.yaml writing, please refer the [archlinuxcn repo](https://github.com/archlinuxcn/repo) and the [arch4edu repo](https://github.com/arch4edu/arch4edu).
+
+## `lilac.py`
+
+`lilac.py` is not the necessary file for lilac. The writing guide for `lilac.py` is provided by [archlinuxcn wiki](https://wiki.archlinuxcn.org/wiki/Lilac.py).
+
+For the lilac.py writing, please refer the [archlinuxcn repo](https://github.com/archlinuxcn/repo) and the [arch4edu repo](https://github.com/arch4edu/arch4edu).