I need a robust yet easy-to-manage digital signage platform focused strictly on advertising. The system must let me push fresh creatives to my screens every single day without manual onsite intervention. Core requirements • Content formats: images (JPG/PNG) and videos (MP4) are the only assets I plan to run, so the player should preload and play them smoothly in full HD or better. • Remote updates: a web-based dashboard where I can upload new media, set start/stop dates, and instantly sync changes to all connected displays. • Scheduling: simple daily playlists are enough; drag-and-drop or similar usability is preferred. • Stable playback: the player app needs to auto-start on device reboot and loop through the assigned playlist with no black frames or buffering glitches. Deliverables 1. Server-side application (any modern stack) with user login, upload, and scheduling features. 2. Lightweight player app for Windows, Android, or Linux-based media boxes—whatever you’re most comfortable building—that fetches the latest list and plays content offline if the network drops. 3. Step-by-step deployment guide so I can host the server myself and roll the player out to new screens. 4. Brief hand-off call or recorded walkthrough to ensure I can manage daily updates on my own. If you have previous experience with signage solutions or streaming media applications, that will help us move quickly. Please outline your proposed tech stack and estimated timeline in your bid.