Chat with users and developers on IRC or Matrix. The rooms are bridged so it does not matter which one you choose.

Subscribe to the sigsum-general mailing list by sending an email with the subject ‘subscribe’ to

sigsum-general-join (at)

or use the form at the list info page. After being subscribed, you can provide feedback, report issues, and submit patches by sending an email to

sigsum-general (at)

You can also report issues and submit merge requests on GitLab.

Join open video/voice meetings on Tuesdays at 1100 UTC.