Modular homes, kit homes, and DIY homes
A nice roundup from rebent: "Rural Studio is a post-grad program that researches affordable design principles. a handywoman in northern Michigan vlogs herself building a modular house (ongoing). A designer researches sustainable homes and decides to build a net zero home. Bungalow In A Box is a family operation that builds timber frame + SIP small houses, with lots of pictures of the build and install."