Generally, no. Amazon Fire OS restricts background services and auto-starting apps. Stick with dedicated Raspberry Pi or Linux mini PCs.
Xibo for complex layouts and enterprise features (scheduling, user groups). PiSignage for simplicity and low-cost Raspberry Pi networks. open source digital signage
Yes, but the bottleneck is the player hardware. Use a Raspberry Pi 5 or Intel NUC. Do NOT use a Raspberry Pi 3 for 4K. Generally, no
To install the server, yes (or follow a YouTube tutorial). To use the daily interface, no—most are drag-and-drop. no—most are drag-and-drop.