I hate to say it but if you want to make a living you kinda have to interact with other people a bit. I'm currently an independent contractor for one of my previous employees. I work when I want for as long as I want, my only requirement is to work less than 32 hours a week and of course to keep my client happy. I have a boss and I do attend some meetings but it's incredibly chill. I would however much prefer if they hired me on full time, but at this point I don't think that's happening.
Otherwise at home there's always some kind of service you can provide. Painting is easy to pick up and some landlords repaint every property between tenants. Any kind of converting trash into something with value is also a good option. For example I know of a guy in town who collects furniture people leave out for trash and refurbishes it to resell.
If you're handy you could even go the extreme route of house flipping, which usually is most profitable if you live in the houses you flip. I've seen a few run down houses bought from estates sell for way below market value then flip for much more, since families just want mom and dad's house sold, and buyers often don't want to do a ton of repairs before moving in. Alternatively buying up run down properties to repair and rent out might be a good path to a solid living too
Or just go all in with a small business. I've not seen sellers of affordable and decent looking Corsi-Rosenthal boxes for example, or if you can find some kind of furniture/device for special needs people there's usually a huge premium charged for those as "medical devices" which are often paid for by Medicaid so it would be very easy to undercut established brands that way. In a similar vein there's a huge hole in the market for durable furniture. The Amish famously make extremely high quality furniture that holds incredible value due to its high durability, and you don't have to be Amish to make high quality furniture. Or just find something else you can sell. I saw you mention some programming skills, maybe you can make some kind of B2B app. I've seen it said that anything that's a spreadsheet can be turned into an app and sold to businesses. Or just make a bunch of phone apps and see if any happen to take off.