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

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