MUI X is an extension of the core open-source libraries of the MUI organization (Material UI, Base UI, MUI System, Joy UI).
The repositories are part of the same codebase.
mui/mui-x imports the code infrastructure from mui/material-ui.
You can find the "contributing" guide for the main repository in mui/material-ui/CONTRIBUTING.md.
Most of the content in the main repository "contributing" guide applies to this repository. There are, however, a few differences:
- The default GitHub branch might be different.
- The local documentation site opens on a different port: 3001 instead of 3000.
- You would need to sign a contributor license agreement (CLA) if the PR changes code located in the following folders:
x-data-grid-pro,x-data-grid-premium,x-date-pickers-pro