The patterns and pipelines behind apps that scale to millions.
Dependencies point inward — UI depends on domain, never the reverse.
Presentation
SwiftUI / Compose Views — declarative, stateless
ViewModel
State + intent handling via Combine / Flow
Domain / Use Cases
Pure business rules, framework-agnostic
Repository
Single source of truth, abstracts data sources
Data Sources
Network, persistence, device APIs
Feature modules with explicit boundaries enable parallel teams and fast builds.
Inversion of control wires layers and makes everything testable.
Single-responsibility components that are open for extension, closed for modification.
Fastlane + GitHub Actions pipelines: lint, test, build, sign and ship automatically.
Lazy loading, instrumented startup, memory budgets and crash-free SLOs.
A shared, themeable component library across platforms for consistency at scale.