Building a desktop app begins by selecting an appropriate platform approach: native across Windows/macOS/Linux, cross-platform tools, and the deployment method. A clear MVP and an early prototype help confirm workflows, performance requirements, and the overall user experience on real devices.

As the product evolves, reliability, release updates, and packaging take center stage. Thoughtful management of file systems, permissions, offline capability, and integrations (device APIs, peripherals, enterprise authentication) ensures dependable daily operation, while an update system and crash reporting streamline long-term maintenance.