Running your own node gives you a private, independent Hive experience. You no longer rely on other nodes to read or interpret the blockchain because your Pi Node keeps a verified copy of Hive’s official ledger every time it runs.
The block log is ~510GB. I am making this comment prior to watching the video.
Edit: Watched it and I don't understand how, but I'll wait and see...
You're already running a Pi Node is it?
No, my witness node(s) are running on full hardware.