This epic collects a set of stories to improve the Resources app shipped with 5.4. They add both new features as well as rework existing ones to improve clarity and align the app with the original feature set of in-place templating. Also included here are stories and tasks describing the underlying technical changes required to achieve all of this.
The goal is to ready the Resources app to take over all in-place templating functionality. Once that is done we will migrate existing template over and remove the legacy "Templates" app, which is of no use anymore. We're also going to remove the hot-fixing functionality we've added in the initial version, as it added too much complexity at this point and is a source of confusion for customers. JCR resources become first-class citizens like resources from other origins, instead of being treated as patches or hot-fixes.
There's a revised design in the UX wiki space that describes the desired outcome in more detail.