For Laravel + Livewire apps, keep it simple but structured:
Layer your code → Domain (rules), Application (use cases/services), Infrastructure (Eloquent, mail, APIs), Presentation (Livewire/UI).
Keep Livewire thin → only handle UI state, validation, and call services — no business logic inside components.
Use DTOs/Actions for commands instead of stuffing logic into controllers/models.
Repositories/Queries abstract persistence for cleaner separation.
Queue jobs & events for slow tasks (emails, payments, reports).
Test at multiple levels (unit for domain, feature for Livewire).
Follow Laravel best practices → policies for auth, caching for performance, queues for scaling.
👉 In short: push logic out of Livewire into dedicated layers, keep modules cohesive, and rely on Laravel’s queues, caching, and policies to scale cleanly.