The problem I'm trying to solve: I don't have wifi at my current studio and won't be able to get it until I move to a new studio, which I won't for at least the next year.
I need to backup the contents of my work computer (Macbook 15") and be able to access them from my personal computer (Macbook 13"). So the solution I've come up with (until I find a new studio) is to use an external harddrive as a "sync-drive", that I connect to my work computer at the office and can take with me and use to access and edit files on the go on my personal computer.
To do this I need to find a solution to continually sync the contents of my work mac to the harddrive while I'm working on it, and that can sync files from the harddrive to the work mac if I've been working on something on my personal computer. (I don't need to sync the files to my personal mac, just be able to access and edit them with the external harddrive connected.)
I work with large images and video, so it needs to be able to sync while I work (or in 5/10min intervals like Backblaze), so I don't need to wait for it to sync when I leave my studio.
How can I solve this?