Great questions! My apologies for the delay on a response–
The best way to contribute to any of our open-source code is to give it a whirl and provide feedback/ask questions about blockers. We’re working on updating documentation across our stack to help make open-source development easier for anyone that wants to build on it, so feedback is really helpful in prioritizing where we focus our resources . Use GitHub issues for documenting code issues and ask any questions in here. We 're also nearing an official release of the Provide-CLI that will make getting started easier than ever - will keep the community posted with info.
From a product perspective - bringing forward defined, real world use cases is the best way to get involved right now. The Provide stack and the Baseline Protocol are both made to be as universally applicable as possible, so validating a solution with real world demand is an incredibly important factor in growing the ecosystem successfully.