The other day I had to carry out an administration with the Treasury and I was lazy to virtualize Windows for that, so I got down to work to use the DNIe on my Mac, with a reader of the thousands that have recently been distributed.
And searching all over the web, I found a website where they explain it perfectly from the beginning of everything, something essential because a false step when installing the DNIe can cost us that the pages do not authenticate us.
Let's see if you guys are lucky like me and you go the first time, although if you end up despairing, virtualize may be your solution.
DNIe Tutorial | Elque pocoaprieta
I have added to my blog a registration support using in DNIe, try it to see if it works correctly