Building a desktop app begins by selecting the optimal platform strategy: native (Windows/macOS/Linux), cross-platform frameworks, and the distribution model. A clearly defined MVP and an early prototype help validate workflows, performance needs, and the overall UX on real machines.

As the product evolves, stability, updates, and packaging become essential. Careful handling of file systems, permissions, offline functionality, and integrations (device APIs, peripherals, enterprise authentication) makes the app dependable in daily use, while an update mechanism and crash reporting streamline long-term support.