Building a desktop app begins by selecting an appropriate platform approach: native for Windows/macOS/Linux, cross-platform frameworks, and the distribution strategy. A clearly defined MVP and an early prototype help confirm workflows, performance requirements, and the overall user experience on real devices.

As the product evolves, reliability, updates, and packaging take center stage. Thoughtful management of file systems, permissions, offline capabilities, and integrations (device APIs, peripherals, enterprise authentication) helps keep the app dependable in everyday use, while a robust update system and crash reporting streamline ongoing maintenance.