You can create issues to share ideas or report a problem.
Feel free also to submit pull requests.
All the commits need to be signed with a PGP key.
Your commit command should look like...
# "S" is upper-case
commit -S -m "your commit message"
... unless you enabled the setting to automatically sign your commits.
# Verify signing is enabled by default
git config commit.gpgsign
The following links will help you to configure your client: