Building a desktop app begins by selecting an appropriate platform approach: native across Windows/macOS/Linux, using cross-platform tools, and choosing how you distribute it. A clearly defined MVP and an early prototype help confirm workflows, performance requirements, and the overall user experience on actual devices.

As the product evolves, stability, updates, and packaging take center stage. Thoughtful management of file systems, permissions, offline capabilities, and integrations (device APIs, peripherals, enterprise authentication) ensures reliable everyday use, while having an update mechanism and crash reporting aids long-term maintenance.