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 outlined MVP and an early prototype help verify workflows, performance requirements, and the overall user experience on real devices.

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