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Aaron Boodman - Replicache and Zero, Building Sync Engines for the Web

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Feb 11, 2025
In this conversation, Aaron Boodman, founder of Rocicorp and a web development veteran from Google, unveils the intricacies of creating sync engines. He discusses how Zero enhances user experience in multi-user environments. Aaron dives into advancements in partial sync, rethinking query languages, and the revolutionary features of Xero, including custom mutators. The dialogue also touches on the evolution of state management challenges in client-server architectures, emphasizing the need for robust solutions to navigate data synchronization complexities.
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INSIGHT

Sync Engines and UI

  • Sync engines address UI slowness caused by client-server distance and the speed of light.
  • They improve UI by reducing latency, crucial for a good user experience.
INSIGHT

Explicit State Management

  • Managing client-server state is hard, often leading to bugs from implicit, optimistic updates.
  • Sync engines simplify state management by making the client-server relationship explicit.
INSIGHT

Replicache and Partial Sync

  • Replicache, a client-side sync engine, uses a push/pull/poke protocol, simplifying server interaction.
  • Partial sync, crucial for large apps, is complex due to data subsets, permissions, and query changes.
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