Great PoC @cmc. Props for advocating `Nim` on the official forum of the ELSTER API of the German Tax Authorities. I allowed myself to [fork your gist](https://gist.github.com/zembrowski/658dc0047e1f3855019ae08d85508b78/revisions) and add an important functionality of generating a PDF-Preview.
I worked with Nim the first time today and I find it a great feature of `futhark`, that it returns understandable feedback for type mismatches.
