Show HN: Galaxy Explorer – Simple 3D Star Map Built with Three.js and Canvas 2D (v0-interactive-star-map.vercel.app)

Hi everyone! I’ve recently launched Wallper, a small project I built because I couldn’t find a lightweight, native-feeling app to apply real 4K video wallpapers on macOS. You can upload your own videos (private or public), apply them to multiple monitors, and the app pauses playback in full-screen mode to save battery. I’d love to hear your thoughts, ideas, or feedback - still very early, but already live and free to try!

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Show HN: Wallper – 4K Live Video Wallpapers for macOS

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