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.
Lotus Works Vintage Software 3.5in Disks Original Seal 1990 Mainframe Collection
$431.99
$125.00
Vintage Silicon Graphics SGI Indy B006 Workstation Computer
$149.95
Digital DEC LK201 Terminal Keyboard RJ11 Connection Mainframe
$49.00
VINTAGE CPU IBM MCM POWER7 - MAINFRAME PROCESSOR
$49.00
IBM Mainframe Vintage MVS/XA DFP V2 R3 Microfiche (~ 300K pages on ~800 cards)
$80.00
Very Rare Vendex Headstart II Computer + Keyboard Mouse CRT Monitor Powers On
$209.99
vintage lot of 3 computer tapes mainframe data ibm magnetic reels
$25.00
Unisys Mechanical Clicky Keyboard AT/XT PN:F4208-00 Mainframe Collection
$339.99
Xargon 1 Beyond Reality RARE Game Floppy 3.5” Floppy Mainframe Collection
$349.99