Mastering Local-First Apps: The Ultimate Guide to Offline-First Development with Seamless Cloud Sync

In Indonesia, internet connectivity is often unstable, especially in rural areas. This makes building applications that rely on constant synchronization over the internet impractical. Instead, applications should be designed to manage data locally. For example, in my experience building a Point of Sales (POS) system, each tenant’s sales data was stored locally, ensuring the app remained fully functional even without an internet connection. The data would then sync with the server whenever an internet connection was available or during specific times, such as at the end of the day. This is where the concept of “local-first apps” becomes invaluable.
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