sfdx-mode* is an Emacs minor mode for working with [[Salesforce DX projects][https://developer.salesforce.com/docs/atlas.en-us.sfdx_dev.meta/sfdx_dev/sfdx_dev_intro.htm]].
Start by cloning the sfdx-mode package repository:
$ git clone https://github.com/rody/sfdx-mode.git /your/path/here
Finish by loading the sfdx-mode package in your emacs configuration:
(add-to-list 'load-path "/your/path/here/sfdx-mode")
(require 'sfdx-mode)
TODO
Running this command in a project directory will visit the project file (sfdx-project.json) in a buffer.
Running will list all the orgs you've created or authenticated to