Thanks for looking at the code. Fixes, tests and docs are all welcome, and first-time contributors are too.
Open an issue first for anything bigger than a typo, so we agree on the approach before you spend time on it. Small fixes can go straight to a pull request.
Keep each pull request to one change. Add or update a test when you change behavior, and say in the description how you checked it. I review every pull request and reply in writing.
Issues labeled good first issue or help wanted are small and scoped. Leave a comment before you start, so two people don't work on the same thing.
These projects are maintained by Michael Lip. If one of them saves you time, you can sponsor the work on GitHub. It starts at $3 a month and pays for the hosting, the API bills and the hours behind each fix.