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.
SFP-10G-LR Compatible 10GBase-LR SFP+ LR Transceiver 10G 1310nm SMF up ot 10km
$45.00
Cisco SG110 24 Port Gigabit Ethernet Switch w/ 2 x SFP SG110-24
$117.00
Allen-Bradley 1783-SFP1GSX Compatible 1000BASE-SX SFP 850nm 550m Transceiver-895
$65.50
Ubiquiti UF-RJ45-10G Compatible 10GBASE-T SFP+ Copper RJ-45 30m Transceiver-7656
$65.00
Genuine Cisco SFP-10G-SR V03 10GBASE-SR SFP+ Transceiver Module 10-2415-03
$8.00
NEW Sealed Cisco SFP-10G-LR 10GBASE-LR SFP+ 1310nm 10km *US Shipping*
$18.00
Brand New Cisco GLC-LH-SMD 1000BASE-LX/LH SFP Module 1310nm 10km SMF LC
$13.89
Cisco QSFP-40G-SR-BD BiDi Short-reach Transceiver, 1 Year Warranty
$17.25
Cisco Meraki MA-SFP-10GB-SR 10G SFP+ SR 850nm 300m LC MMF
$29.99
LOT OF 20 Genuine Cisco SFP-10G-SR V03 10GBASE-SR SFP+ Transceiver Module
$89.00