I think the post gives the wrong impression that I work nonstop. I write very little code for Textbelt, Asterank, and Inflation nowadays as they are in maintenance mode (bugfixes, minor features, SEO tweaks, responding to pull requests). Textbelt in particular has benefitted from open source contributions.
Some of the projects are deceptively small. For example, core logic for Asteroid Viewer is less than 200 lines, AdDetector less than 80 [1][2]. I would be surprised if I wrote more than 5k lines of real code this year on the side or more than 10 hrs/wk average, though I tend to work in bursts, not uniformly throughout the year.
