[Module] MMM-NextcloudPhotos — Fullscreen Nextcloud photo background with crossfade

[bohemtucsok]

Hey everyone! 👋

I built a module that displays photos from your Nextcloud server as a fullscreen MagicMirror² background with smooth crossfade transitions.

Key features:

• OAuth2 authentication (Nextcloud built-in, not third-party)
• Automatic token refresh — authenticate once, runs forever
• Smart image resizing with sharp — a 12MB photo becomes ~250KB
• Raspberry Pi 3 optimized (single-thread, memory-safe)
• Interactive setup script that guides you through everything
• Configurable interval, sync, opacity, display mode

I’m running it on a Raspberry Pi 3B+ and it handles large photos without freezing thanks to the sharp resize pipeline.

GitHub: https://github.com/bohemtucsok/MMM-NextcloudPhotos

Feedback and contributions welcome! Also available in Hungarian 🇭🇺