The lowtech magazine raised you already with a link to their previous article on the one-wheeled Chinese wheelbarrow - https://solar.lowtechmagazine.com/2011/12/how-to-downsize-a-... . ;)

HN comments at https://news.ycombinator.com/item?id=17792329 and https://news.ycombinator.com/item?id=4285086 .