Local-First Software Is Winning: A Developer Guide to Building Without the Cloud

The cloud made everything possible. It also made everything dependent. Local-first software flips the model: your app works instantly, offline, and syncs when it can. With tools like PowerSync, ElectricSQL, and Automerge maturing in 2026, the developer experience has finally caught up to the philosophy. Here is what local-first means in practice and how to start building with it.