As @SorteKanin@feddit.dk says, we try to post as much as possible on /r/Denmark, but as the mods are quite hostile to us we are somewhat limited in how much advertising we can do in there. We have been able to leave some comments in relevant threads, and we are currently being bombarded with applications, so it has been successful.

Tacit knowledge really is a problem in the Linux community, but also in the rest of society.