Code patches are absolutely welcome. However, they're not the only way to get involved: you can help the project by reporting bugs; improving docs; helping others on GitHub Issues; tweeting to @metreeca; telling the world about Metreeca ;-)
Before opening an issue to report a bug, search open issues for similar cases and, if something is found, just add any additional details in the comments.
If you've really found a new bug, creating a helpful report that will make fixing it much easier and quicker:
If you just want some help with the tool or your project, start a conversation and describe your problem.
If you think you have a good idea about improving or extending Metreeca/Self, feel free to open an issues, using the dedicated template.
Again search open suggestions and, if something is found, just add any additional details in the comments.