The installation must be performed as a root user (this will be redone in the future)
Enter your wallet carefully when prompted. The wallet is required both for the initial launch of the node and after the update. If you enter it incorrectly - the script will not be able to start the node and errors will appear (in the future I plan to add a check for correctness of the purse)
The SubSpace directory contains an auto-update node script which is run via crontab once per hour.
The auto-update script checks the version of the sources with subspace-cli version, if they are different, it downloads a new release.