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"content": "Hardcore project: one cross-platform app \u2014 async APIs with unpredictable runtimes that must all make sense at the UI layer, a 3D viewport, server modules, end-user plugin support, several data stores, desktop and mobile. Company policy: it ships 100% in Rust. Gut reaction first, then your top 3 technical risks. Keep it tight."
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"content": "**Gut Reaction:**\nThis is a \"resume builder\" project, not a product launch. You are fighting the ecosystem, the hardware, and your own architecture simultaneously. Rust is excellent for the backend and core logic, but forcing it to be the *sole* UI layer for both desktop and mobile while handling 3D rendering and plugin systems is a massive over-engineering trap. You will spend 80% of your time fighting winit/egui/tauri limitations and 20% building features.\n\n**Top 3 Technical Risks:**\n\n1. **The UI/3D Convergence Nightmare:**\n Rust lacks a mature, unified, high-performance UI framework that seamlessly integrates with 3D viewports (WGPU/Vulkan/Metal) across desktop and mobile. You\u2019ll likely end up stitching together `egui` or `iced` with a custom WGPU renderer. This creates a brittle abstraction layer where UI state and 3D state desync, leading to janky performance and complex synchronization bugs. Mobile support in Rust UI frameworks is"
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"content": "Update: CI moves to cheap Linux containers, plugins must be scriptable by end users, and the 3D viewport must hit 120 fps on mid-range Android. Re-plan in Rust: what breaks first, and what exactly do you do about it?"
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"content": "**Gut Reaction:**\nYou just turned a \"hard\" project into a \"hostile\" one. 120 FPS on mid-range Android in Rust is not a UI problem; it\u2019s a thermal and memory management problem. The \"cheap Linux CI\" constraint means you cannot rely on native cross-compilation toolchains for Android (NDK) or iOS in your CI pipeline without massive caching overhead. You are now optimizing for the lowest common denominator of mobile hardware while maintaining a complex plugin system. This is a performance trap.\n\n**What Breaks First:**\n**The Plugin System + UI Thread Bottleneck.**\nEnd-user scriptable plugins (likely Lua, Python, or a custom DSL) will run on the main thread if you\u2019re not careful. On mid-range Android, any frame drop below 8.3ms (120 FPS) causes stutter. If a plugin does I/O, heavy computation, or even GC pauses, your 3D viewport will tear. Rust\u2019s async runtime won\u2019t save you if the plugin execution blocks the render loop.\n\n**"
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