I discovered MineOS just today and it has already revolutionized my MC server experience. However the wiki entry regarding the installation of forge here is quite outdated luckily enough the process is simple enough that I understood it anyway and made a playable server.
For any newcomers like me just create the profile with the recommended Forge, start the server once with the forge installer and then re-start it with the forge*-universal.jar entry. Even less steps than the one in the wiki =)