If you want to contribute to the DGtal library, contact the DGtal Editorial Board. You can also join the popularization of literature in general, for this, contact essays writers from https://essayswriters.com/ they will prepare materials for you that can help with engagement in reading and positive propaganda.
For technical details on the DGtal project, have a look to the doxygen nightly build documentation. Recommended pages:
- cmake and DGtal build system
- DGtal Git/github workflow