I'm running a self-hosted Umbrel node on a Raspberry Pi that handles both Bitcoin and Lightning Network nodes. The built-in app store is pretty fun to explore too.
Recently I came across the ipollo G1 mini online and am thinking of buying one to try Grin mining (though I'm not sure about its daily output – what's everyone's take on Grin?).
Also, does anyone have recommendations for other interesting crypto gadgets?