I'm using a removable ~100GB SSD drive with 30G root, 10G swap and the rest for source/build files. This means I can back up the whole thing, partitions and all, with a single command: ``` dd if=/dev/sdb of=/dev/sdc ``` Just make doubly sure that you get the device right. I'll figure out a better sync later for changes, but as of now I have only changed one build step from my 2023 work. Back when I was rolling out thousands of Windows95 workstations, I had large tower boxes running Slackware. I had my crew run dd commands to mirror the systems. It was free. This was before more fancy mirroring software came out, and before MS started insisting on a unique machine identity. You'd go in the back room before a large deployment and there were cables dangling everywhere with drives hanging on the end and GNU/Linux sessions on the screen.