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Berius
native macOS media downloader, library, and player with a bundled, constrained toolchain
active :: software :: Updated 2026-01-11
download, organize, and play media in one native macOS app with a bundled, constrained toolchain
Berius is a native macOS app built in SwiftUI. It downloads audio and video, files the results into a persistent library, and plays them back, all through a command-line toolchain the app bundles and manages for you.
The design is intentionally constrained: no raw command arguments, no self-update, no remote components, no plugins. The app owns the toolchain and the library folders so behavior stays predictable and self-contained.
The downloader is near complete: best-quality video, audio-only formats (MP3, M4A, Opus, FLAC), progress and cancel, output-folder persistence, and cache management. The library and player add persistent history, separate Music and Video sections, playlists, and in-app playback. A disc-authoring workflow is planned.
Role: solo creator / design / SwiftUI implementation
Build notes
- downloader roughly 95 percent, library and player roughly 70 percent, disc authoring not started
- bundles and verifies its own toolchain instead of shelling out to a system install
- ships an optional screensaver component alongside the app