fix(deepagents): localize homepage (#1322)

Author: mdrxy

src/oss/deepagents/overview.mdx

@@ -4,7 +4,13 @@ sidebarTitle: Overview
 description: Build agents that can plan, use subagents, and leverage file systems for complex tasks
 ---
 
+:::python
 [`deepagents`](https://pypi.org/project/deepagents/) is a standalone library for building agents that can tackle complex, multi-step tasks. Built on LangGraph and inspired by applications like Claude Code, Deep Research, and Manus, deep agents come with planning capabilities, file systems for context management, and the ability to spawn subagents.
+:::
+
+:::js
+[`deepagents`](https://www.npmjs.com/package/deepagents) is a standalone library for building agents that can tackle complex, multi-step tasks. Built on LangGraph and inspired by applications like Claude Code, Deep Research, and Manus, deep agents come with planning capabilities, file systems for context management, and the ability to spawn subagents.
+:::
 
 ## When to use deep agents
 
@@ -14,7 +20,13 @@ Use deep agents when you need agents that can:
 - **Delegate work** to specialized subagents for context isolation
 - **Persist memory** across conversations and threads
 
+:::python
 For simpler use cases, consider using LangChain's [`create_agent`](/oss/langchain/agents) or building a custom [LangGraph](/oss/langgraph/overview) workflow.
+:::
+
+:::js
+For simpler use cases, consider using LangChain's [`createAgent`](/oss/langchain/agents) or building a custom [LangGraph](/oss/langgraph/overview) workflow.
+:::
 
 ## Core capabilities
 
@@ -42,6 +54,7 @@ Deep agents applications can be deployed via [LangSmith Deployment](/langsmith/d
 
 ## Get started
 
+:::python
 <CardGroup cols={2}>
     <Card title="Quickstart" icon="rocket" href="/oss/deepagents/quickstart">
         Build your first deep agent
@@ -56,3 +69,21 @@ Deep agents applications can be deployed via [LangSmith Deployment](/langsmith/d
         See the `deepagents` API reference
     </Card>
 </CardGroup>
+:::
+
+:::python
+<CardGroup cols={2}>
+    <Card title="Quickstart" icon="rocket" href="/oss/deepagents/quickstart">
+        Build your first deep agent
+    </Card>
+    <Card title="Customization" icon="sliders" href="/oss/deepagents/customization">
+        Learn about customization options
+    </Card>
+    <Card title="Middleware" icon="layer-group" href="/oss/deepagents/middleware">
+        Understand the middleware architecture
+    </Card>
+    <Card title="Reference" icon="arrow-up-right-from-square" href="https://reference.langchain.com/javascript/deepagents/">
+        See the `deepagents` API reference
+    </Card>
+</CardGroup>
+:::