Some of the best ways to contribute are to try things out, file issues, join in design conversations, and make pull-requests. Check out the contributing page to see the best places to log issues and ...
yq can be called as a module if needed. With -y/-Y, files can be edited in place like with sed -i: Because YAML treats JSON as a dialect of YAML, you can use yq to convert JSON to YAML: yq -y . < ...