In the "Rules and Guidelines" portion of the itch.io jam page, it states, "Platforms: All submitted games must be digital and playable on Web, Windows, Linux, or Mac. Web games are preferred for ease of access." This rule says that it is preferred to be web but not required. However, at the bottom it says, "Your game must be in a web version." Which of these is correct? Does the game need to be a web version, or is it optional?