View-layer gem that became officially 'done' with the Hanami 2.1 release and is packaged as a standalone, framework-agnostic Ruby gem usable in any Ruby application. Provides four optional building blocks: views (Ruby objects that decide what is exposed to templates), parts (decorators that wrap exposed values with presentation methods), scopes (Ruby objects that compute the locals a partial needs), and helpers. Designed so teams can adopt only the layers they need, keeping templates clean and moving presentation logic into small, unit-testable Ruby objects.