TN visa but want to monetize on youtube or others

[tony]

Since a TN visa working in the US is not allowed to work / earn actively on any other than the company associated with the TN,

1. how if I want to be a youtuber? can i then open as a youtuber in canada?
2. or selling apps on google?

or anything that is online in nature.
How to do that legally?
(note that: I don't intend to migrate to US or applying a green card)

thanks