docs: add rust and ruby

apps/public/content/docs/(tracking)/sdks/index.mdx

@@ -81,6 +81,16 @@ For most web projects, we recommend starting with one of these:
   - ✅ Async support
   - ✅ Django and Flask compatible
 
+- **[Rust](/docs/sdks/rust)** - Rust SDK for server-side tracking
+  - ✅ Async/await support
+  - ✅ Type-safe API
+  - ✅ Environment variable configuration
+
+- **[Ruby](/docs/sdks/ruby)** - Ruby SDK for server-side tracking
+  - ✅ Rails integration
+  - ✅ Gem-based installation
+  - ✅ Simple API
+
 ## Mobile SDKs
 
 - **[React Native](/docs/sdks/react-native)** - Cross-platform mobile analytics
@@ -108,7 +118,7 @@ Not sure which SDK to use? Here are some recommendations:
 - **Static website or HTML?** → Use [Script Tag](/docs/sdks/script)
 - **React app?** → Use [Web SDK](/docs/sdks/web) or [Script Tag](/docs/sdks/script)
 - **Next.js app?** → Use [Next.js SDK](/docs/sdks/nextjs)
-- **Server-side tracking?** → Use [Python](/docs/sdks/python) or [Node](/docs/sdks/javascript)
+- **Server-side tracking?** → Use [Python](/docs/sdks/python), [Rust](/docs/sdks/rust), [Ruby](/docs/sdks/ruby), or [Node](/docs/sdks/javascript)
 - **Mobile app?** → Use [React Native](/docs/sdks/react-native), [Swift](/docs/sdks/swift), or [Kotlin](/docs/sdks/kotlin)
 </Callout>