I setup nostr:npub1aghreq2dpz3h3799hrawev5gf5zc2kt4ch9ykhp9utt0jd3gdu2qtlmhct on an old laptop of mine and installed the Bitcoin app!

You can learn more about umbrel here: https://umbrel.com

There are other ways to run a node too - you could simply install Bitcoin Core directly on your machine and run that instead —> https://bitcoin.org/en/bitcoin-core/