Why would it need to remain one item of hardware? It could even be a KVM VM that you set up to be 'portable' between different hardware platforms. A bitcoin wallet and full node in a Linux environment is just files on a filesystem, you can move it between systems as you upgrade. Take backups however you want to. Or make your own cold storage copy of it, etc.
Why would it need to remain one item of hardware? It could even be a KVM VM that you set up to be 'portable' between different hardware platforms. A bitcoin wallet and full node in a Linux environment is just files on a filesystem, you can move it between systems as you upgrade. Take backups however you want to. Or make your own cold storage copy of it, etc.