Creating a desktop app begins with selecting an appropriate platform approach: native on Windows/macOS/Linux, cross-platform frameworks, and how it's distributed. A clearly defined MVP and an initial prototype aid in validating workflows, performance requirements, and the overall user experience on real devices.

As the product evolves, reliability, updates, and packaging become essential. Meticulous management of file systems, access controls, offline capabilities, and integrations (device APIs, peripherals, enterprise authentication) ensures daily reliability, while an update system and crash reporting streamline ongoing maintenance.