One potentially relevant idea I’ve thought about is starting a design collective with a focus on anti-capitalist/profitable design. We’d intentionally make designs that people can build from easily obtainable/reclaimable materials to take the place of products that you would normally buy instead. This is already a reality within the realm of programming/the open source community, but you don’t really see this for physical objects. Like you can fork the code for some open source project, but good luck building a computer from the component level up to run it on.
Again- just something I’ve been thinking about. Creating user-buildable designs for complex things like modern day computers or motor vehicles would be difficult. I guess I want to live in the past when you could buy DIY house/car kits??