

Not really tricky at all. Especially if they limit the expiration date to be within the gap of the current closure logic (min 3-6 months).
Especially “especially” if they made the expiration date a new field, one that offline users could ignore, and navsoftware could use imperatively.
My dad had the T-Mobile G1; if I recall, first ever commercial available Android phone!
That was handed down to me after a couple years. It has as much chill factor as it did nerd factor. People laughed and were amazed at the same time. I loved it, lol