TBH I think you have enough information on that wiki to get started.
The Attachments module brings to the OpenMRS Reference Application a central place to view & manage file attachments.
Additionally it encompasses files uploaded elsewhere within OpenMRS as long as they are saved as complex obs.
The aim of this project is to get v2.0 of the module ready for release. This will consist of working on a subset of tickets for the v2.0 release.
That paragraph says it all. There are bunch of open issues that need to be tackled to get this module ready for 2.0 so your gsoc project will be these issues. Also this adds a lot of information
(plus) To be confirmed - the objectives for this project will be to complete a subset of tickets for the v2.0 release.
Attachments to become 100% RESTful.
Attachments UI to be
Segregated to an Open Web App.
Converted from Angular to React.
Are you saying the wiki does not answer this question?