diff --git a/Cargo.toml b/Cargo.toml
index 89011e8..e575993 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -18,7 +18,10 @@ version = "0.1.0"
 edition = "2024"
 rust-version = "1.85"
 license = "GPL-3.0-or-later"
-description = "Web service for the ApsisRS computational kernels."
+description = "The documentation and tool service for the ApsisRS computational kernels."
+homepage = "https://apsis.focus1024.com/"
+repository = "https://git.focus1024.com/ApsisRS/apsis-book"
+readme = "README.md"
 publish = false
 
 [lib]
diff --git a/README.md b/README.md
index 9ade256..04f9d2c 100644
--- a/README.md
+++ b/README.md
@@ -12,6 +12,17 @@ The service builds to a single binary that embeds every asset it serves. It
 does not read a content directory or a frontend build at run time, and it
 does not need either to be present next to the binary.
 
+## The running service
+
+The service is deployed at <https://apsis.focus1024.com/>. It serves this
+project: the same documents, graphs, interface catalogue, and tools, from the
+same build. Nothing about it is particular to a deployment, because
+everything it serves is inside the binary, so a copy built from the source is
+the same service.
+
+The deployed instance opens in Chinese and can be switched to English from
+the top bar.
+
 ## What it serves
 
 | Section | Content | Route prefix |
diff --git a/README.zh.md b/README.zh.md
index bb38328..072ad90 100644
--- a/README.zh.md
+++ b/README.zh.md
@@ -9,6 +9,14 @@ ApsisRS 计算内核：概念文档、知识图谱、从库源码中提取的接
 服务构建为单一二进制，其中嵌入了它所服务的全部资源。运行时不读取内容目录，
 也不读取前端构建产物；二进制旁边不需要存在这两者。
 
+## 线上服务
+
+服务部署在 <https://apsis.focus1024.com/>，提供的就是本项目的内容：同样的文档、
+图谱、接口目录与工具，出自同一份构建。它没有任何与特定部署相关之处——它所服务的
+一切都内嵌在二进制里，因此从源码构建出的副本就是同一个服务。
+
+线上实例默认以中文打开，可在顶栏切换到英文。
+
 ## 服务内容
 
 | 板块 | 内容 | 路由前缀 |