Your life would probably consist of lighting lots of fires to attract attention.
I’d be a bit cagier about attracting attention than that, in all my years of experience watching doomsday films and TV shows it’s always the other people that cause all the problems.
I’d go for moving into a castle, Windsor castle would work, nice high walls, probably got a back up generator, plenty of space within the walls for crops and livestock (have animals survived in this scenario?) and if it doesn’t have an armoury the barracks are just down the road.
On the appendicitis thing, I was listening to a podcast a couple of weeks ago about a Russian posted on a remote research station who had to remove his own appendix. He was a surgeon and not an IT bod though. BBC write up of the same story here