If you’d like to contribute to Apache Crail, please use the follwing resources.
The source code is available at https://github.com/apache/incubator-crail
How to contribute to Crail
For any potential changes/proposals we recommend that you open a JIRA ticket to have a disucssion. After making necessary code changes, please open a pull request at Github, and update the JIRA.
Please join the Crail developer mailing list for discussions and notifications. The list is at: firstname.lastname@example.org.
To post to the list, it is necessary to subscribe to it.