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Alex Grant
Alex Grant

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A Comprehensive JAM Stack Reference Project: Service Worker First, Batching, and Multi-user OCC

I've been working on a practical reference project for building modern web applications that demonstrates some patterns I rarely see documented well together:

  • Service Worker First Architecture (not just PWA features)
  • Offline data mutation batching with IndexedDB staging
  • Multi-user optimistic concurrency control with 3-way merge
  • Sophisticated testing with Docker Testcontainers, multi-layer coverage
  • Hand-crafted VanillaJS (no framework dependencies)

The project focuses on being a learning resource rather than another framework. Everything is built to be readable and educational.

https://github.com/localnerve/jam-build

Would love feedback from other developers who've tackled similar offline-first challenges.

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