> I suspect if you can get a face to face gig, that's a more reliable income source--although the upside is limited.

its a reasonable trade off for me, as a side gig

> At least in the US though, community college or some sort of continuing education isn't going to be a very good gig financially.

Nor here. They also want teaching qualifications. I would rather run something of my own. The problem is how to set it up and advertise.