If you spotted something weird in application behavior or want to propose a feature you are welcome.
If you are eager to participate in application development and to work on an existing issue (whether it should be a bugfix or a feature implementation), fork, write code, and make a pull request right from the forked project page.
If you have some tips and tricks or any other words that you think might be of interest for the others — publish it wherever you find convenient.
See also: https://github.com/idlesign/vininfo