My 2011 MBA from grad school is pretty much done, its so slow. I replaced the battery and the charging port and its doing better but still about to end. Good 10 years though.

Yeah, after posting I was thinking about that.

I have a very lean setup on it with Linux. I don't think it'll last too much longer to be honest.

I mainly use it if I'm on my phone, but find something that a bigger screen/keyboard would help.

But I can't do much on it. Even a RPi has more RAM on it.

I have an Iphone 4 that still serves as a remote control for my music setup. The battery was replaced once, 2014 or so.