Level 10 is a passion project more than anything. While I intend to keep it running smoothly and hopefully keep improving it over time, please understand that it isn't my full-time job.
Issues and pull requests are very welcome. That said, I would recommend opening an issue first so that we can discuss any features you hope to add before spending your time on them.
When possible, pull requests should include automated tests to ensure that they are achieving the desired effect. All new functions should have typespecs and documentation.
Feel free to open an issue if you see anything that needs clarified in the documentation as well.