The following rules generally apply for pull requests and code changes:

Submit Pull Requests to the devel branch

The devel branch is where experimental features reside. After some soak time they may be ported over to master and a release will be cut that includes them.

Keep documentation up-to-date

Please make an effort to keep the documentation up-to-date to the extent possible and necessary for the change at hand. That includes adjusting the README and man page as well as regenerating the PDF rendered version of the latter by running make doc.

Blend with existing patterns and style

To keep the code as consistent as possible, please try not to diverge from the existing style used in a file. Specifically for Rust source code, use rustfmt and clippy to achieve a minimum level of consistency and prevent known bugs, respectively.