Though, technically that leaves you more at risk of ransomeware or something that overwrites your data.
I rsync as well, but use snapshotting on the remote drives. So, a bad rsync would suck but shouldn't really result in data loss. Ransomware on my local+remote server would of course be very bad...
I wonder what the effective range is if it's charging at every stop (obviously depends on tons of factors).
Busses are a neat use case for electric vehicles in this regard.