Local-first web development allows users complete control over their data and functionality, even offline, with automatic synchronization when online. Unlike traditional web apps, which rely heavily on backend servers, local-first apps prioritize user ownership, instant access, and device independence. Core principles include offline support, collaboration, security, and sustained access to user data. Applications fit for local-first environments are mostly productivity-based, while others like banking are less suitable. Local-first methods can face challenges such as data synchronization conflicts. Overall, this approach represents a shift towards more user-centric, resilient web applications.
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