I would buy as much land as I could. Build myself a reasonable house and a load of barns. I have always wanted to run a farm animal sanctuary that takes in abused and unwanted farm friends. Then I would spend the rest of my days laughing at goats and cows and chickens being derpy. That and maybe take a nice vacation to the beach once in a while.
RIF has been my app of choice for 10 years. I hope that the developers jump on over and create a Lemmy version. Until then I am using Jerboa and it is working well enough. Death to Reddit, Long Live the Fediverse!