There are a number of ways in which you can get in contact with people involved with the libdivecomputer project, depending on who you need to contact and the type of support and/or feedback you're looking for.
The libdivecomputer project hosts a number of mailing lists you can freely subscribe to:
Note that due to spam control policies, posts from non-members are moderated and will not appear immediately. Please subscribe to the mailing list in order to avoid this restriction.
If you think you've found a bug in the libdivecomputer library, or if you'd like to make a contribution of any kind to the project, feel free to open a ticket to help us look into the problem and/or submission. If you haven't submitted a bug report before, you'll need to create an account first.
If you have further questions about the project, you can email the libdivecomputer maintainer directly: email@example.com.
Please keep in mind that for most questions, the mailing list is the preferred communication tool. With direct email you reach only one person, while on the mailing list the entire community can try to help you.