These studies stay deliberately close to the code. Each one follows a single production module from a risky starting point to a clearer boundary, safer release path and repeatable way of working.
These are illustrative module studies, blending patterns from similar projects rather than describing a whole client transformation. The scope is intentionally narrow: one useful part of a live app, examined deeply enough to prove what should happen next.
Shared profile data, session state and linked screens were pulled behind one boundary so the team could modernise a live journey without putting weekly releases on hold.
Identity checks, consent decisions and analytics were made testable before the UIKit flow moved into SwiftUI, reducing the number of things a screen change could break.
Draft records, attachments and background sync were brought into one owned feature so the UI could explain every state and recovery no longer depended on one fragile screen.
We’ll look at its code, dependencies, release path and the product work that still needs to move.
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