In my opinion these are absolutely not prerequisites. I built many things at my desk or the kitchen table in our flat with very simple tools. Even a single Swi

In my opinion these are absolutely not prerequisites. I built many things at my desk or the kitchen table in our flat with very simple tools. Even a single Swiss Army knife can be used to achieve a lot. And you don't need a lot of time to make small things. It can be easy to be jealous of the DIY YouTubers with massive workshops (I'm jealous!), but I find it more satisfying to take inspiration from the kinds of simple things people make/made in simpler societies/civilisations.