I’m going to do whatever I feel like on it. : ) Honesty, I don’t know for sure, but I’m excited about the possibilities. It’ll end up being a home file/print server at the very least. Might make it remotely accessible. Eventually, I’ll start plugging stuff onto it, but probably not robots. I’ve got the idea of building a cluster someday.
As for Arch, might just flash that to an SD card and give it a try. I’ve got a 16GB micro laying around doing nothing.