The Algolia community is a valuable asset, as seen when OneSignal utilized Algolia's Hacker News Search API to create a demo of their notification platform. OneSignal, which helps developers send effective push notifications, wanted to showcase the capabilities of Web Push and their support for it. They built a push notification system for Hacker News using Algolia's API, allowing users to receive notifications about trending stories with just a Chrome web browser. The demo successfully gained upvotes on Hacker News, demonstrating the potential of Web Push and OneSignal's services.