ArturKovacs/emulsion — reverse-engineered prompt

Build me a fast, simple desktop image viewer like Emulsion.

I want it to open local image files quickly, let me browse through images in the same folder, zoom in and out smoothly, fit the image to the window, and show the current file name or basic title info when possible. Keep the interface minimal, with no photo editing tools or clutter. It should feel lightweight and work as a normal desktop app on Windows, Linux, and ideally Mac too.

Please use Rust since this project is Rust based. Include a clear way to build and run it from source. It’s okay if advanced things like AVIF support, networking, update checks, or perfect Wayland behavior are optional or not included by default. Focus on a reliable viewer first, with good error handling if an image can’t be opened.

Look up current Rust desktop and image loading docs online if you need to.