Fuck the 3-2-1 rule, I cant afford that. I just have my server and that connects each night to another server at my parents and does an incremental backup via kopia.
Or at least, that is my plan, currently i hook up a 10TB HDD from time to time and do a ZFS send… but the offsite backup is coming! For sure!
If it is not that much data though, take a look at Backblaze B2. Using that for a client that has a few 100 GBs and it costs about a euro a month currently. Incremental, encrypted, with kopia. But if it is multiple TB it can get real expensive real fast
What do other cities do with their wastewater? Isnt that the norm?