GrimoireLab is free, open source software. You can inspect it, you can adapt it to your needs. This chapter includes some information about its structure, and hwo to contribute to specific parts of it.
GrimoireLab source code is in repositories in the GrimoireLab GitHub organization. Those repositories are also used for maintaining discussions, commenting on features and reporting bugs related to GrimoireLab (via GitHub issues), and proposing changes and improvements to the code (via GitHub pull requests).