Vim. It replaced an astonishing number of individual apps. Apart from using it as an IDE, I also have a wiki-style vault where I add ideas, useful commands, to

Vim. It replaced an astonishing number of individual apps. Apart from using it as an IDE, I also have a wiki-style vault where I add ideas, useful commands, to do lists, recipes, lecture notes, etc. I integrate the text files in various bash scripts, e.g for generating notifications related to my to do list. And staying in the terminal dramatically reduces exposure to distractions and dopamine spikes. It also encourages a hands-on attitude, rather than passive consumption.