My skills on contributing FOSS project

What skills do I have that would be useful for contributing to a FOSS project?
  • Web development skills
    • Frontend Skills (JavaScript and its web frameworks, HTML and CSS)
    • Backend Skills (Mysql, Django (Python), C++)
  • Language
    • Japanese
What things are the most interesting to me? I.e., what do I enjoy doing?
  • Leaning language features (mainly C++)
  • Solving coding challenges
  • Web development (simple stuff)
Written before or on February 16, 2020