make a Standalone off-Line capable version?

[Miaoucat0]

hello.

if i may bring my thought into this for a moment.
i was especially interested in this program in order to flash board in an off-line manner.
practical if there was internet problem or a power outtage. maybe even update a node that is old or running another firmware totally (softRF, PAX counter...) in the field. having a simple laptop and this program at the ready could be very valuable in some situation.

edit: it seems the program currently can only work while having access to the internet.

would it be possible to add the functionality of downloading the most recent stable version for each board?
in order to have a backup and get ready for the road/portable operation or something.

Thank you for your time.