There are things people do for other people ... for money
, that, with the internet
require NO DIRECT contact in the process.
One thing comes to mind is drafting. There are people, such as engineers and surveyors who know their work, but lack in drafting skills(computer drafting skills).
These engineers and surveyors might pay $50 to $100, or more to draft
THE CLIENT couldn't care less if you're sitting at a desk in his office, across town, in a marina or sailing past the Statue of Liberty.
It's not even important to have the internet
, except when you need to transfer data or finished products.
There are other ideas, which I'm sure many can chime in on.
Some will require acquired skills. others will require education.
Find out what you can do to earn a living regardless of where you are ... and you can do it on a boat.
Maybe you can even earn enough to set up a pension for your older life.