I can confirm, that some of the free software projects and mailing lists and IRC channels are really good learning environments. Since I have started being some

I can confirm, that some of the free software projects and mailing lists and IRC channels are really good learning environments. Since I have started being sometimes active on the Guile and a bit rarer the Guix mailing list, I have learned a ton of stuff. People are usually helpful and it helps discovering gaps in ones knowledge or things one got wrong. Also good for learning about many cool tools.