Building a desktop app begins by selecting an appropriate platform approach: native for Windows/macOS/Linux, cross-platform tools, and the deployment method. A clearly defined MVP and an initial prototype help verify workflows, performance requirements, and the overall user experience on actual devices.

As the product evolves, reliability, updates, and packaging take center stage. Proper management of file systems, permissions, offline functionality, and integrations (device APIs, peripherals, enterprise authentication) keeps the app dependable in everyday use, while an update system and crash reporting ease ongoing maintenance.