how to join open source projects?

For beginners, what are the tips for getting started in open source projects? Tell us about the difficulties, the first projects you participated in and what is the experience of participating in this type of project.

What opportunities did this activity bring you: portfolio, job, network, knowledge ...?

Right now for beginners what languages would be cool for beginners to start with ?


Tell us if you would have any projects to recommend for beginners

thanks for all !!