The Debian-Live approach also provides some good opportunities. First and foremost, the very easy remastering makes it efficient to run with no persistent store quite often. For instance, upon remastering, I just start without the store, and the image I run is union-mounted with the persistence file and copied&compressed. Then I have to boot something else to copy the new squashfs image in place, but that's all that has to be done outside the system.
Boot the new image without persistence, create a new persistence file.
For further adaptations, the new persistence file can be mounted in an instance run under kvm, programs can be added and settings tweaked for an eventual new remastering.
Storing the series of squashfs-compressed images, one can always go back in this process if needed.
HP Workstation Z640 2x Xeon E5-2623V4 32GB Ram Dual 256GB SSD K420 Linux GA
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Dell Precision T3600 XEON E5-1607 3.0GHz 16GB RAM 500GB HD WIN10 Pro Workstation
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HP Z440 Workstation 18 core Xeon E5-2699 V3 64GB 1TB SSD R5-340X WIFI WINDOWS 11
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Apple MAC Pro A1481 Late 2013 Xeon Quad-Core 3.7GHz 32GB 1TB SSD FirePro D300
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Intel Xeon E7-8890 V4 2.20GHz 24-Core 60MB LGA2011 Server CPU Processor SR2SS
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Apple MAC Pro A1481 Late 2013 Xeon Quad-Core 3.7GHz 16GB 1TB SSD FirePro D300
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INTEL XEON 5218R GOLD 2.1GHZ PROCESSOR | SRGZ7
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