Perhaps going a couple orders of magnitude up in supply disruption to what we’ve seen in the pandemic would be a realistic worst case. So looking at multi year

Perhaps going a couple orders of magnitude up in supply disruption to what we’ve seen in the pandemic would be a realistic worst case. So looking at multi year disruption of key components and hugely inflated prices for new and second hand. To mitigate that I’d have some cheap easy to store replacements at hand as insurance. Things like raspberry pis, spare phone, camping style equipment, bike, car parts etc. We also had a gas price squeeze in Europe that possibly had political motivations, so some renewable fuel source would be useful.