Time Machine for MacBook's
Apple MacBook backups to a Docker based VM, `timemachine`. Adding the Samba share and then add the storage to your Time Machine as usual.
What if your servers don't work, Where is your data? When is it up again? You need to create a solid back-up strategy and stick to using it. You can and should refined the strategy on a regular basis. Basic rule is the 3-2-1 rule and the hardware to match.