So, I recently setup this system for personal use so I haven't had a full opportunity to use it and I don't have too much data so it might be a bit too tailored to my use case but here it goes.

I use Resilio[1] to sync my laptop, phone (on an SDCard) and Scaleway VPS, this works really great because i have my files at all times on 3 systems and there is a very low chance they will all fail at the same time. My photos get uploaded instantly from the phone and I can then sort them from the laptop.

And then I use Cloudberry to backup to BackBlaze B2 to make sure that if anything goes wrong with my files and it gets synced across the system I can still recover them.

The whole setup costs me probably less than 3€ a month(2.49 for the VPS and a handful of cents for the B2) and gives me the same functionality I was getting from just using Dropbox for 12€.

I can also throw a few more services on the VPS to enhance file functionality at no cost, which I would not be able to do any other way.

[1] https://www.resilio.com/