elmicha

Does it have to be radio? Maybe infrared would be enough? You could use a TSOP 2438 as a receiver and any old IR remote.

Also there’s a timeout setting in the same file.

You can update and it won’t break anything, because Intel microcode won’t be loaded into AMD CPUs. If you run apt show intel-microcode it tells you that there is a amd64-microcode package as well. If it is not already installed, you can install it, and then try to remove intel-microcode. If it doesn’t want to remove anything else (e.g. the kernel), you can remove it. If not, just leave it installed.

You could plug in a power meter with wifi and look what power is used.

You could use a babyphone or a camera (e.g. an old phone).

I’m not sure if an Alexa (Echo Dot or so) would react on the little tune of your washer, but it hears the standard annoying beeps of my washer.

Or just use completion: press tab once or twice after the ssh command (and a space). If that doesn’t work, install the bash-completion package.