I did a bunch of ~$100 jobs as a freelancer on UpWork. It was the same work over and over again. I decided I needed to automate the work, and, long story short, I ended with an online tool that allowed customers to do the work themselves. It's cheaper for them and more profitable for me now.

Unrelated tip: beware trying to make money targeting developers. We are a bunch of cheap asses, and we expect everything to be free. Target consumers and/or businesses instead.