The developer provided the GitHub link: http://thomaswilburn.net/caret/. Source: about 2 years ago

In lieu of Sublime Text, you might take look at the Caret editor. It has a lot of the same features. Developers page with info: http://thomaswilburn.net/caret/. Source: over 2 years ago

Here's the Gingko app I test sometimes. It lets you enter information horizontally and vertically into connected cards as if you were creating a horizontal outline that can have child cards. It's keyboard driven so that can speed up input. Source: about 1 year ago

I find it useful for some things and awkward for others. I've been using Gingko [1] for a long while now. The ever-expanding-but-hierarchical structure it uses hits a sweet spot for me. 1: https://gingkoapp.com/. - Source: Hacker News / over 1 year ago

- gingko for planning stores and Quoll writer to work them out in the final draft. Source: almost 2 years ago

I use Ginkgo App and it really changed my life writing. 🙄. Source: about 2 years ago

It's not exactly the same, but a similar left-to-right tree outliner, specifically optimized for writing, is https://gingkoapp.com. - Source: Hacker News / about 2 years ago