Immersive Portals Modpack (used in my Backrooms map):

Minecraft 1.20.4 - Fabric 0.16.9

• For CurseForge: immersiveportals_cf.zip
• For PrismLauncher / MultiMC: immersiveportals_pl-mmc.zip
• For Modrinth App: immersiveportals.mrpack
• Or just the files needed such as mods, resourcepacks and server.dat: content.zip