Yeah, LocalTalk feels a lot like Econet 2.0: technically very similar but needing much less infrastructure, and with a much simpler user experience. It's interesting stuff. Some folks on the stardot forums made an Econet hat and corresponding software suite for an r-pi, so I use that to bridge to my fileserver, which is rather cool. And now someone's made a replica econet module for the A4! Which is even cooler.
A lot of my early computer-bothering was done on Acorn machines at school back in New Zealand. I haven't touched an ARM Acorn machine in years, but I still have a great fondness for them. Every once in a while I think about trying to find one again, but now that I live in the States it's a little bit harder!