Wallnetic

Wallnetic is a native Mac app that enables users to play their own video files as desktop wallpapers in 4K, 1440p, and 1080p resolutions. It supports multiple monitors with per-space and per-monitor assignments, offers photo slideshow generation, battery-aware playback, and a variety of visual effects. Wallnetic is privacy-focused, open source under MIT license, requires no accounts, and is compatible with macOS 13 and later.