Oh damn i hadn’t heard of those, looks awesome. That’s a miner though which is a different thing than a humble node

The nodes are the ones validating transactions that the miners use for all the hashing and the new (and old) blocks that the miners mine, by verifying they are in fact signed by the private key of the public key from which came the on-chain address being used as the input of a transaction, per the record of the entire timechain they have on their hard drive

Legend has it, miners and nodes were once the same thing. But those times are gone. I think when people say mining is too centralized, a big part of that is that even for someone with ASIC machines (miners) running in their own home, the node they have to use to connect to the Bitcoin protocol are the ones associated with the mining pools they’re hashing in. And a vast majority if home miners are in pools as opposed to solo mining

The proof of work system and decentralizing developments on the horizon for mining kind of (in my opinion) make this apparent centralization not a huge concern, but i’m also dumb and maybe it is

But yeah the thing you mentioned is a miner, not a node. If you do want to run a node you should probably start by checking out umbrel and start9 and get your own hardware, but not a raspberry pi, maybe something a little better suited. There are many good threads and guides on doing this including on those two projects’ websites