Packagist is the main Composer repository. It aggregates public PHP packages installable with Composer.
Twproject Gantt editor is a free online tool for creating and sharing Gantts
MXGraph / Draw.io / diagrams.net component to be used within Tiki Wiki CMS Groupware
Tiki Wiki CMS Groupware
This repository contains the grapheditor example and the mxGraph src to display the necessary files to build your own editor.