If I had £500k I’d buy a 10-20 acre small holding and make a decent living. Design it so it’s easy to manage, no expensive machinery and rough calculations should net me £50k a year from a handful of products.

Setup a shop so people can order to pickup and you’re only picking what people order so costs are kept low.

But if I had that kinda money, I could live off £5k a year because I’d pretty much have no electric costs and I don’t like going out so if i didn’t have debt, I’d live a comfy life on very little.