I’m currently using an “old” mobile (Samsung A20) with Termux (standard ROM, not rooted) and works like a charm! I’m hosting the *arr suite, Kavita, Podgrab, Homeassistant, ntfy and there’s still room left (in terms of CPU and RAM). In terms of consumption we’re in the order of a few (<5W) Watts per day. The only issue is the storage, I’ve added a 128GB SD card and every once in a while I consolidate the content in an external HDD. And the nice thing is that you breath a new life in old hardware.
The Expendables 4 is out? You made my day, really need to watch it! I enjoyed all of the three in the series, light humor, action, all my old heroes… couldn’t ask for more.
Give me some time to watch it before calling the cops to pick me up :D