Project AIO is a pack focused on Ender IO and ProjectRed with some vanilla+ mods sprinkled in.
The pack is used on the Hololive university server.
If your game crashes you need to delete the jar BackpackBaubles-core located in the 1.12.2 folder found in the instance mod folder.
Documents > Curse > Minecraft > Instances > Project AIO > Mods > 1.12.2
The Project AIO Team
