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

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