I think about battery being the very dangerous thing to leave on 24/7, especially if that’s some remote location (like attic), or at home, but when you do not work from home. It may be dangerous, plus the battery may die pretty quickly.

My first idea, to mitigate risk of fire, it’s possible to locate some hand made sand bag above the phone, so in case there’s fire, the sand would neutralise it. Also, I’d try to emulate charge-discharge cycles by enabling and disabling smart socket. I wonder if that’s possible to automate using the phone itself. E.g. when it reaches 20% it enables smart charger, and disables it upon reaching 80%. So it can do it in perpetuity. Since the screen would be off all the time, I guess one charging cycle would be once a few days. Which is twice or thrice better than average user who charges their phone once or even twice a day. So, theoretically, a Pixel with a new battery might survive a few years, if not 5 years, off one battery. Then a user might replace the battery. So, theoretically, rubbing it a server is entirely possible, I guess. Otherwise, super cool. I’d love to try this myself now. I guess that may be a perfect solar-powered server. For it, maybe one doesn’t want a smart charger. Just let the sun charge the thing whenever there’s a sunny day.