I bought an APC Back-UPS Pro Gaming BGM1500B for one reason: I didn’t want a two-second brownout to take my smart home down with it. My Home a**istant install runs as a VM on my Proxmox box, and one of the best things about running Home a**istant on Proxmox is also the scariest: it all lives on one machine. The thought of a power blip corrupting it, or leaving the house dumb until I noticed, was enough to justify 1500VA of pure sine wave insurance. That Proxmox box shares the battery side with my network stack.