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.
Samsung Galaxy Tab A8 10.5" SM-X200 128GB Wifi Only Tablet Open Box
$149.99
Samsung Galaxy Tab A 2020 SM-T307U 32GB, Wi-Fi, (Unlocked) 8.4 inch.
$39.96
Samsung Galaxy 12.4 Inch EF-DT730 Slim Keyboard For S7+ | S7 FE | S8+ | S8+ 5G
$39.99
Samsung 870 EVO 4TB 2.5" SATA III Internal SSD (MZ-77E4T0B/AM)
$275.00
Samsung Galaxy Tab S6 Lite SM-P610 Gray 10.4" 64GB WiFi Android Tablet
$79.95
Samsung Galaxy Tab A9 (X110) 64GB 4GB RAM International Version (New)
$129.99
Genuine Samsung Book Cover Keyboard for 14.6" Galaxy Tab S8 Ultra | S8 Ultra 5G
$89.99
Samsung - S Pen Creator Edition - White
$40.00
Samsung Book Cover Keyboard Slim for Samsung Galaxy Tab S9+/S9 FE+ (5G) - Black
$65.99
Samsung 16GB 2Rx4 PC3-12800R M393B2G70BH0-CK0 DDR3 RDIMM - SERVER RAM
$8.90