Beginning with the right platform approach is crucial: native options (Windows/macOS/Linux), cross-platform tools, and how the app will be distributed. Defining a solid MVP and an early prototype helps verify workflows, performance requirements, and the user experience on real hardware.
As the product evolves, reliability, updates, and packaging take center stage. Thoughtful management of file systems, permissions, offline operation, and integrations (device APIs, peripherals, enterprise authentication) ensures everyday usability, while an update system and crash reporting ease long-term maintenance.