UnisonDB is an open-source, log-native database designed for edge computing and AI applications. It uses a combination of Write-Ahead Logging and B+Tree storage for fast, consistent data replication across multiple nodes, enabling low-latency operations. The system merges database functions with streaming capabilities, allowing for instant updates and real-time responsiveness.

This article outlines Pinterest's transition from a batch-oriented database ingestion system to a real-time, unified framework using Change Data Capture and modern data processing technologies. It addresses the challenges faced with legacy systems and details the architectural improvements that led to lower latency and better resource efficiency.

The article discusses the importance and methodologies of real-time database change tracking, highlighting its applications in modern web development. It emphasizes the benefits of keeping data synchronized across various platforms and the challenges faced in implementing such systems effectively. Techniques and technologies that facilitate real-time tracking are also explored.

Instant is a real-time database solution designed for modern frontend development, allowing developers to write relational queries while handling data fetching, permissions, and offline caching automatically. It simplifies the app development process by eliminating the need for traditional client-server interactions and providing multiplayer support by default. With SDKs available for JavaScript, React, and React Native, Instant focuses on enhancing user experience and productivity.