Yeah my plan (dream) has always been like this:

• Use the internet while I have it (assuming people just all disappear suddenly) to download survival guides, solar panel repair/installation PDFs, maps, etc. Anything I can think of, I’ll download
• Gas only lasts so long. I can use chemicals that extend it, but it’s definitely limited. I’d start with a gas powered truck and eventually move into electric vehicles. Batteries aren’t forever either… But I’d try.
• I’d move to a warm, temperate climate
• I’d find a building that claims it is powered by solar panels most of the year. I’d use that as my home
• I’d immediately begin trying to farm. I have a black thumb so this would take me some years to get done correctly. But I’d hopefully have some potatoes and grain growing by the end of a year
• In the meantime, I might find things to occupy my time such as: finding videogames to play, raising chickens, fishing, collecting guns/ammo, collecting books to preserve, storing solar panels, backup equipment, etc.

My end goal would be to survive as long as I’m happy. I’m pretty introverted so that would last a while. I’d use animals to keep me company. I believe nature would take us over pretty quickly. It would be hard to maintain the house, solar, etc. forever. But if I could, I would.

My wife and I already do a lot of foraging in our area and we have several guides for edible food. We also do some canning and prepping for disasters.

I don’t think a disaster would be a picnic. People are the problem. But if they disappeared suddenly, I think it would be pretty livable.