Support and feedback

Contact Us

Use the public GitHub project for technical questions, reproducible bug reports, feature proposals, and contributions.

User Support

Start with documentation and examples

Search the user guide, FAQs, existing issues, and input tutorials before posting. If the problem remains, open a GitHub issue with enough information for another person to reproduce it.

Report a Bug

Make the report reproducible

  • GUNDAM release tag or exact commit SHA;
  • operating system, compiler, CMake, and ROOT versions;
  • the smallest configuration and input that reproduce the behavior;
  • the complete command and terminal output;
  • expected behavior and observed behavior; and
  • whether the issue occurs with a maintained tutorial input.

Request a Feature

Lead with the analysis need

Describe the scientific or technical workflow, why current functionality does not meet it, the expected user interface or configuration, and how the behavior could be validated. A clear use case makes design discussion more productive.

Contribute

Propose a focused pull request

Connect a pull request to a documented issue. Keep the change focused, use an appropriately named branch, and include tests, validation material, and documentation proportional to the change.

Before Posting

Protect data and credentials

Do not upload access tokens, passwords, private datasets, embargoed results, personal information, or experiment-restricted material to a public issue. Replace sensitive paths and values with safe placeholders while retaining enough structure to reproduce the problem.