Hi and cool that you are interested in contributing to Polylith! Unfortunately, we don’t have such a guide at the moment. Right now the focus is to finish the issue-66 branch so that it can be merged back to master but after that, my plan is to update the backlog and organise the work, After that it would be a good time to write a guid for how people can contribute to Polylith. You can always create an issue and fix bugs by creating a PR, but we don’t have an organised way of contributing right now.