Anyone can browse the source code online with a browser. For example, you can browser code at https://github.com/openmrs.
To check out a local copy of the code using git:
git clone https://github.com/openmrs/openmrs-core
See Using Git for more information.
To submit changes to a repository, we recommend following GitHub conventions of forking the repository and submitting a pull request. Push access to a repository is managed by the owner of the repository. For repositories under individual user accounts within GitHub, you can request access rights from that user. For repositories within the OpenMRS organization on GitHub, developers who are /dev/3 or above already have push privileges but are expected only to push to repositories when appropriate per our GitHub Conventions.
Developers are encouraged to publish their OpenMRS-related work with an OSI-approved license under their account on GitHub. Community-developed modules and projects may request a project within the JIRA Issue Tracking System.
When multiple developers across multiple organizations are sharing a repository, it may be easier to host it under the OpenMRS organization on GitHub. If a repository needs to move under the OpenMRS organization in GitHub, please post this request to the Repository Management category on OpenMRS Talk.