Sounds like you’ve got quite the esoteric setup, hehe :)
My personal solution isn’t exactly small as I have two identical four-disk NAS servers which operate with one as primary and the other as a read-only mirror of the primary. For off-site I don’t have an automated solution but just backup onto external every so often and leave it with a family member.
A good solution could be as simple as a raspberry pi with an external SSD at a friend or family’s place, and then make that accessible via VPN to your home network.
Sounds like you’ve got quite the esoteric setup, hehe :)
My personal solution isn’t exactly small as I have two identical four-disk NAS servers which operate with one as primary and the other as a read-only mirror of the primary. For off-site I don’t have an automated solution but just backup onto external every so often and leave it with a family member.
A good solution could be as simple as a raspberry pi with an external SSD at a friend or family’s place, and then make that accessible via VPN to your home network.
For smaller amounts you can also get away with Cryptomator and some free account at Google, Onedrive or whatever. 😉