Building a desktop app begins by selecting an appropriate platform approach: native for Windows/macOS/Linux, cross-platform options, and how it's packaged. A clearly defined MVP along with an early prototype helps verify workflows, performance requirements, and the general user experience on actual hardware.

As the product evolves, reliability, release cycles, and packaging take center stage. Thoughtful management of file systems, permissions, offline capabilities, and integrations (device APIs, peripherals, enterprise authentication) ensures dependable daily operation, while an update system and crash reporting ease ongoing maintenance.