If the purpose is to learn, choose a language and look for lists of projects (like github.com/trending/go), pick one you find interesting and setup a dev environment, build, run, break it. If you can't find anything to improve read the issue list and try to fix anything, if someone fix it before, compare with what you were trying and talk to whoever fix it about it.
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If the purpose is to learn, choose a language and look for lists of projects (like github.com/trending/go), pick one you find interesting and setup a dev environment, build, run, break it. If you can't find anything to improve read the issue list and try to fix anything, if someone fix it before, compare with what you were trying and talk to whoever fix it about it.