docs(showcase): CityPulse - AI-powered Geospatial Search with Sonar API

docs/showcase/citypulse-ai-search.mdx

@@ -0,0 +1,63 @@
+---
+title: CityPulse - AI-Powered Geospatial Discovery Search
+description: Real-time local discovery search using Perplexity AI for personalized location insights and recommendations
+sidebar_position: 2
+keywords: [perplexity, geospatial, location, real-time, maps, local-discovery, sonar]
+---
+
+# CityPulse - AI-Powered Geospatial Discovery
+
+![CityPulse Main Interface](https://raw.githubusercontent.com/anevsky/CityPulse/main/assets/CityPulse-GeoSearch-App-1.jpg)
+
+CityPulse is an intelligent location-based discovery search that helps users explore what's happening around them right now. It demonstrates how to create personalized, real-time local insights using Perplexity's Sonar models.
+
+[![Demo Video](https://cdn.loom.com/sessions/thumbnails/6507fa27571442e680edf787b0f0690d-2fa2c36169822631-full-play.gif)](https://youtu.be/Y0UIhh3diJg)
+
+## What CityPulse Does
+
+- **Real-time local discovery** - Find current events, restaurants, and local alerts near any location
+- **AI-powered search suggestions** - Get intelligent search recommendations as you type
+- **Personalized insights** - Receive AI-generated advice on what to try, best times to visit, and pro tips
+- **Interactive mapping** - Explore results on an interactive map with custom markers and detailed popups
+
+![Search Interface](https://raw.githubusercontent.com/anevsky/CityPulse/main/assets/CityPulse-GeoSearch-App-2.jpg)
+
+## How It Uses Perplexity Sonar
+
+CityPulse leverages two key Perplexity models:
+
+**Sonar for Real-Time Data**
+```python
+# Get current local information with geographic context
+response = client.chat.completions.create(
+    model="sonar",
+    messages=[{
+        "role": "user", 
+        "content": f"Find current events, restaurants, and alerts near {lat}, {lng}"
+    }],
+    response_format={"type": "json_schema", "json_schema": {"schema": LOCAL_INFO_SCHEMA}}
+)
+```
+
+**Sonar Reasoning for Personalized Insights**
+```python
+# Generate AI-powered location recommendations
+response = client.chat.completions.create(
+    model="sonar-reasoning",
+    messages=[{
+        "role": "user",
+        "content": f"Provide personalized insights for {location_name}: what to try, best times to visit, pro tips"
+    }]
+)
+```
+
+The app uses structured JSON schemas to ensure consistent data formatting and includes citation tracking for source verification.
+
+![AI Insights](https://raw.githubusercontent.com/anevsky/CityPulse/main/assets/CityPulse-GeoSearch-App-3.jpg)
+
+## Links
+
+- [GitHub Repository](https://github.com/anevsky/CityPulse)
+- [Live Demo](https://citypulse-ppx.uc.r.appspot.com/)
+- [Video Demo](https://youtu.be/Y0UIhh3diJg)
+- **[Built with ❤️ by Alex Nevsky](https://alexnevsky.com)**

docs/showcase/fact-dynamics.mdx

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 ---
 title: Fact Dynamics | Real-time Fact-Checking Flutter App
 description: Cross-platform app for real-time fact-checking of debates, speeches, and images using Perplexity's Sonar API
-sidebar_position: 2
+sidebar_position: 3
 keywords: [Fact Dynamics, fact-checking, Flutter, Dart, real-time, speech-to-text, debate, image verification]
 ---
 

docs/showcase/perplexity-flutter.mdx

@@ -1,7 +1,7 @@
 ---
 title: Perplexity Dart & Flutter SDKs
 description: Lightweight, type-safe SDKs for seamless Perplexity API integration in Dart and Flutter applications
-sidebar_position: 3
+sidebar_position: 4
 keywords: [Perplexity, Flutter, Dart, SDK, API, streaming, chat-completions, sonar, type-safe, widgets]
 ---