Back in 2010-ish I talked to a Nokia engineer that said that their own study had concluded that it was a bad idea to have a phone be a server, because of batter

Back in 2010-ish I talked to a Nokia engineer that said that their own study had concluded that it was a bad idea to have a phone be a server, because of battery draw. It wasn't just about the number, size and frequency of requests: the cellphone protocol at the time also required the transceiver to be in a state of readiness for a time interval in-between requests, during which it drew more battery. And the software was not in control of those time intervals — the network operator was. (If I had signed an NDA I don't remember, it should have expired by now)