todotxt (deprecated)

Install command: 
brew install --cask todotxt

Name: TodoTxtMac

Minimalist, keyboard-driven to-do manager

https://mjdescy.github.io/TodoTxtMac/

Cask JSON API: /api/cask/todotxt.json

Cask code: todotxt.rb on GitHub

Current version: 2.4.0

Current version requires: macOS >= 10.11

todotxt is built for Intel macOS and so requires Rosetta 2 to be installed.
You can install Rosetta 2 with:
    softwareupdate --install-rosetta --agree-to-license
Note that it is very difficult to remove Rosetta 2 once it is installed.

Analytics:

Installs (30 days)
todotxt 6
Installs (90 days)
todotxt 21
Installs (365 days)
todotxt 94