A SIM-ready 5G router with BE7200 Wi-Fi 7, 2.5GbE WAN, and automatic failover.
Your Ethernet connection may need some fine-tuning.
If you’re building a homelab rig, you could just use off-the-shelf hardware in standard cases and slap it all in a rack like the normies do. Or, you could follow the example of [Justin Garrison] and ...