The talk discusses software development costs from three perspectives: cost of introduction (writing new code), cost of change (modifying existing code), and cost of ownership (maintaining code). The speaker emphasizes the importance of understanding these costs when deciding whether to write custom code or use existing packages/tools, and advocates for only taking ownership of code that truly needs to be owned and changed frequently.

Josh Hanley, a core maintainer of Laravel Livewire, presents best practices for building maintainable Livewire applications. He covers various architectural approaches including page components, computed properties, form objects, and action classes. The talk focuses on code organization, naming conventions, and strategies to keep Livewire components clean and testable.