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Robbie Mackay discusses the challenges and solutions for creating offline-first applications with peer-to-peer data sharing. Reflecting on his past experiences with non-profits in remote areas, he explores using modern technologies like Hypercore and KappaDB to enable decentralized data sharing without a central server. He also demonstrates how data can be shared and synchronized across devices using hyperswarm, and highlights the limitations and potentials of current tech in achieving this goal.

"Offline-first data sharing with peer-to-peer databases" - Robbie Mackay (nz.js(con); 2021)

For those passionate about software that works offline, syncs seamlessly, and empowers users. Dive into the world of distributed systems, and innovative local-first architectures.

Local Firsters

This talk is about building offline-first data sharing applications using peer-to-peer databases. The speaker, Robbie Mackay, outlines the challenges of building such applications, particularly in environments with limited or unreliable internet connectivity. He introduces two key technologies: Hypercore, a decentralized content exchange layer, and KappaDB, which allows event sourcing to be used with Hypercore. The speaker demonstrates how these technologies can be used to build a simple to-do list application that allows data to be shared between multiple devices without a central server. He addresses the challenges of conflict resolution in distributed systems, highlighting the need for conflict resolution mechanisms like last write wins, and discusses the limitations of using these technologies in a purely browser-based environment. He concludes by suggesting that while the technology is not yet production-ready, it holds promise for building offline-first applications that can share data directly between users without requiring a centralized server.

<p>This talk is about building offline-first data sharing applications using peer-to-peer databases. The speaker, Robbie Mackay, outlines the challenges of building such applications, particularly in environments with limited or unreliable internet connectivity. He introduces two key technologies: Hypercore, a decentralized content exchange layer, and KappaDB, which allows event sourcing to be used with Hypercore. The speaker demonstrates how these technologies can be used to build a simple to-do list application that allows data to be shared between multiple devices without a central server. He addresses the challenges of conflict resolution in distributed systems, highlighting the need for conflict resolution mechanisms like last write wins, and discusses the limitations of using these technologies in a purely browser-based environment. He concludes by suggesting that while the technology is not yet production-ready, it holds promise for building offline-first applications that can share data directly between users without requiring a centralized server.</p>