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A developer shares their experience migrating from a Flutter + Rust architecture to a pure Rust + egui solution. The main motivations included reducing complexity from managing two programming languages, eliminating thousands of lines of generated FFI code, and simplifying state management. The author found egui's immediate mode paradigm easier to work with than Flutter's widget-based approach, avoiding common setState refresh issues. The final application felt faster and more responsive, though this could be attributed to removing FFI overhead rather than language performance differences.

Why I Switched from Flutter + Rust to Rust + egui

Immediate mode is a great paradigm for UI