The source code for the main HabitRPG site is stored in the habitrpg repository.
The source code for the mobile edition of HabitRPG has its own mobile repository.
The Chrome extensions have their own Chrome repository.
Images and Algorithms
The pixel art and most of the algorithms - such as when you score a task - are stored in the "common" directory in the habitrpg repository, which is used for both mobile and web. That way it can be used in multiple locations and the code does not have to be duplicated.
Blacksmiths (programmers) can contribute new code or bug fixes through GitHub for contributor rewards.
Certain HabitRPG bugs on GitHub have special rewards. The Critical Hammer of Bug Crushing is a decorative weapon given to anyone who manages to solve a bug marked as "priority - critical" on GitHub.
Bugs and Issues
With the capacity to house source code, GitHub also provides issue tracking for any repository on its servers.
If you have a bug or issue that you wish to submit, a GitHub account is needed to log a new issue or comment on an existing one.
To report a bug, go to the HabitRPG website, click on Help > Report a Bug, and follow the instructions you will see there.