wholly agreed. If going offline first fits the use case of your app, then go for it. But there are so many "X-first" approaches (e.g. mobile first) that you can

wholly agreed. If going offline first fits the use case of your app, then go for it. But there are so many "X-first" approaches (e.g. mobile first) that you can't (and shouldn't) over engineer for them from the start.