"Jank" in [Magic: The Gathering] has come to mean a card or deck which either isn't or doesn't appear to be good. (From "janky", which I think was borrowed from computer science slang.) The computer science usage is typically something like, "This setup is janky" which is the example I have used in the title of the question. More @Wikipedia
Hover over any link to get a description of the article. Please note that search keywords are sometimes hidden within the full article and don't appear in the description or title.