The best way to do it is just look at what packages you use frequently. If their github repo is accessible then dive into the "issues" and start opening some PR

The best way to do it is just look at what packages you use frequently. If their github repo is accessible then dive into the "issues" and start opening some PRs to address them. And if you've ever wished the package did X then propose it and open a PR to see if the maintainers are interested in adding it