Hi guys, I'm sharing something I've been tinkering on for a while: https://signagesync.app/

Like Google Chromecast, but "cast" to multiple screens at once. Create a playlist of auto-refreshing web pages, videos, and even live streams (but not supported on Windows). Also works with local network, e.g. http://192.168.../sales-dashboard

It's still early (MVP), but already usable—and I'd love to hear your feedback.

Tech stack: SvelteKit, WebSocket, Flutter (desktop)