Getting started with appcelerator – Install Atom (and some useful packages)

Goto https://atom.io/ and install the atom editor.

Then install some Atom packages for easier Titanium coding:

Name Type Features
titanium language javascript Language JS Autocomplete (non alloy)
Titanium Alloy add-on All-in-one package
Jump to definition
Open related
TSS Highlight
Ti-Create add-on Create projects, controller, modules
Titanium-Build add-on Run in simulator (wip)

Other useful non-titanium packages/add-ons:

Name Features
Atom Beautify Code beautifier (tss, xml, js support)
minimap A preview of the full source code.
minimap-highlight-selected A minimap binding for the highlight-selected package
highlight-selected Highlights the current word selected when double clicking
pigments A package to display colors in project and files.
Linter A Base Linter core with Cow Powers (does nothing by itself, it’s an API base)
Linter-jshint Linter plugin for JavaScript (this checks your JS code)
DocBlockr A helper package for writing documentation
Terminal-plus A terminal package for Atom, complete with themes and more
Project Manager Project manager

source: https://github.com/m1ga/titanium_with_atom#install-atom-and-some-useful-packages

if you want to reproduce, please indicate the source:
Getting started with appcelerator – Install Atom (and some useful packages) - CodeDay