There are many ways in which you can participate in the project. Like most open-source software projects, contributing code is just one of many outlets where you can help improve. Some of the things that you could help out with are:
Documentation (both code and features)
Bug reports
Bug fixes
Feature requests
Feature implementations
Test coverage
Code quality
Sample applications
License
Licensed under the GNU LESSER GENERAL PUBLIC LICENSE
The Tidelift Subscription provides access to a continuously curated stream of human-researched and maintainer-verified data on open source packages and their licenses, releases, vulnerabilities, and development practices.