For the sorts of things I do, a (hierarchical and potentially even non-DAG) symbolic formula* is both much smaller and more easily reproduced than a (necessarily linear) sequence of physical actions. Therefore I tend to write myself CLI tools, with the occasional output via a graphical window or a browser.

Maybe this is why I don't have any voluntarily-installed apps on my phones? The phone form factor is suitable for entertainment, tolerable for consuming information, but horribly tedious for manipulating or generating it.

* it is a commonly held belief that "avoiding syntax errors", an activity most typically found only at the start of the learning curve, is worth spending person-decades on. Who (since Englebart, Iverson, et.al in the 1960s?) is attempting to tackle "avoiding semantic errors"? We have billions of USD spent on making more approachable vuvuzelas; where are the violins? (or better yet, pianos: both initially more approachable and ultimately more powerful than any of the strings)