Not who you asked, but as someone interested in small/hobby farm equipment to enable a couple people to do more work, more efficiently: The actual products seem nice and they have a variety of things that would be useful to us. I’d like to be able to buy a common flatbed lifting/dumping platform at about half those prices and be able to separately purchase and easily swap out the various wheelbarrow and garden/utility wagon bases. Ability to upgrade/replace motor and batteries. Ability to use the platform for additional powered implements like spreaders, seed drills, flail mower, auger, etc I’d like to be able to operate it in either a push-in-front (wheelbarrow) or pull-behind (wagon) fashion and for the drive and steering controls to work well in both cases. Stretch goals: a low speed follow-me mode with basic obstacle detection/avoidance. A go-to-programmed-location-and-come-back-wherever-here-is mode, optionally dumping or waiting for interaction at the other end.

The powered cart design? I'm not sure. I suppose there are some niche jobs that you could target with that. I think most farms set up to use a tractor with a front end loader or bobcat (which takes care of shoveling too), or gator/truck/atv for just hauling. I can see the powered cart being useful in small barns or niche chores, but only marginally (or for disabilities).

In general, I think low cost, low maintenance, and the ability to repair it yourself (lots of COTS parts) are the main benefits.

Interchangeable buckets/attachments would be good. What I mean is that I see a lot of outdoor or primary sector uses in the existing carts. Could be good to have the bucket of the wheelbarrow be interchangeable for the secondary or value-add steps. Many small farms need to vertically integrate to survive. So maybe have it focused on processing, like hauling, warming, and bottling (honey gate) that 100 gallon container this honey device uses. Or maybe for hauling mushroom bags from sterilization, to inoculation, to fruiting rooms.

Also, I assume many of the people using a powered wheelbarrow type device would find a loading aide/mechanism highly beneficial. Stuff like shoveling takes a long time and can be hard on the back.