I don't know if this is the right place to ask, feel free to move it to the right section if I'm not right.
I tried to link my dutch wp account to different sites like wikivoyage, species and commons. But for some reasons other pages than wikipedia didn't work. I used the code: [[commons:User:QZanden]] and [[v:nl:Gebruiker:QZanden]] but the links didn't work. Why is it possible to link to wikipedia userpages, but not to the other projects?
What does "didn't work" mean? Which markup made you end up where exactly? Also see https://en.wikipedia.org/wiki/Help:Interwiki_linking#Prefixes for syntax.
Normally, suchs interlinks are supposed to appear in the leftside of the screen, where also the links to Wikidata appear. As Wikidata does not provide Userpages because they are not notable, I tried to add these interlanguage links as wikitext in my userpage. I ended up with this: . I hoped it would be possible to add all my userpages via these interlanguagelinks.
