•Giving developer time on the project. (Message us on Twitter or Slack for guidance!)
•Giving funds by becoming a sponsor on Open Collective or GitHub (which goes to our Open Collective account)!
•Our #development Slack channel and say hi! (sign-up)
•Issues with the good first issue and help wanted label. We suggest also looking at the closed ones to get a sense of the kinds of issues you can tackle.
•Our CONTRIBUTING.md to get started with setting up the repo.
•Our discussions/notes/roadmap: babel/notes
•Our progress on TC39 proposals: babel/proposals
•Our blog which contains release posts and explanations: /blog
•Our videos page with talks about open source and Babel: /videos