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.
Macintosh Platinum Mouse - Apple 128K 512K 512Ke Mac Plus Lisa IIe M0100 - NEW
$44.99
Vintage Apple lle 128k Enhanced Computer A2S2064 Rebuilt W/ Disk Drive & more
$389.99
Apple Macintosh 128k 512k Plus Analog Board Capacitor Re-Cap Kit - US Shipping
$23.95
1984 APPLE MACINTOSH Model M0001 1st MAC 128K 40th Anniversary PICASSO KIT NICE
$4999.99
Apple Macintosh 128K M0001 Computer with 128K Label - Estate Sale SOLD AS IS
$2468.10
Vintage M0001 Macintosh 128 128K Computer 1984 Front Cover Nice
$79.00
Apple Macintosh Mac 128K M0001 Computer 1984 w/Keyboard M0110 Mouse M0100 & Bag
$849.99
Working 1984 Apple Mac Macintosh 128K M0001 - Restored/Serviced/Tested
$1381.27
NEW 1984 Apple Macintosh 128K BOXED Model M0130 400K Mac Disk Drive UNUSED RARE
$799.95
1984 STEVE JOBS Macintosh 128K MACWORLD Offer Card Sheet Mac M0001 UNUSED RARE
$79.99