@luis_in_brief After frustration with the state of the few consumer-grade fire alarm systems that support a vibrating output (my partner is deaf), I ended up with a proper commercial building type fire alarm system. The fire panel has some relay input/outputs that I use with an ESP32 (running my own code, but you could use Tasmota or something) for basic smartness. Best of both worlds, and no 4am battery chirping, but not cheap or simple.