So I'm not sure if this is possible, but I have been searching for a while on how to install forge with mcp. Basically I am trying to create a custom all in one client with forge. I only get tutorials on how to make a forge mod, and that's great I can take the jar and put it into my mods folder, but I have seen clients like LunarClient, and CosmicClient that use forge mods, but they are their own launcher/jar file. They use forge mods like MapWriter and even WorldDownloader, and don't have a mods folder, its all compiled as one. How can I do this?