Building a desktop app starts with selecting the right platform approach: native on Windows/macOS/Linux, cross-platform tools, and the distribution method. Defining a solid MVP and an initial prototype helps confirm workflows, performance needs, and overall UX on real devices.

As the product matures, reliability, updates, and packaging become key. Proper management of file systems, permissions, offline operation, and integrations (device APIs, peripherals, enterprise authentication) ensures dependable daily use, while an update system and crash analytics aid ongoing maintenance.