Have I got a game for you! And then does everything it can to make sure that this is impossible. Because 'Merika!
Software used to display images on digital sign boards is an extremely niche market. The program I have to use for work, LED Studio, is so bizarrely programmed that I've seen error messages in at least three different alphabets.
I've used a website that was worse than this one. It was used for math classes I took. Your grade was based on the website, even for exams. You would they your answer, it would tell you were wrong and show you the correct answer. Which would be identical to what you entered.