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They came for the offline-first, but they stayed for the performance

Workshop abstract

There's a big push for offline-first development, with a new buzzword — "Progressive Web App", or PWA — making the rounds for the last year or two. But a lot of what's being said sounds like the coding equivalent of "eat your vegetables!" What's in it for ME? Quite a bit, it turns out. In this talk, Jason will share the surprising ways online apps will see huge benefits when they're built to support offline users.

Learn how to ace the Lighthouse test with just a few simple changes and how you can easily create offline-first apps with just a few lines of code; also how going offline-first will improve the connected experience, including better performance, increased stability and reliability, improved user experience, and more!

So, in addition to eating your vegetables — you know, making your web apps usable for people with slow and unreliable connections or whatever — you'll ALSO see your apps get even better for connected users. And all with minimal development effort required.

Workshop level


Workshop takeaways

  • How to build a high-performing, offline-first, progressive web app
  • Add support for realtime syncing between devices
  • Create better user experience for online and offline users

Workshop slides

Download the slides

Workshop repo

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Workshop video

Jason Lengstorf

Jason Lengstorf


Jason is a developer, designer, author, and friendly bear. He's worked in nearly every role in an agency and uses his 14+ years of experience to offer a unique, cross-functional approach to solving complex problems. He lives in Austin, TX, spends most of his disposable income on food and travel, and can often be spotted in the forest foraging for nuts and berries.