wait im seeing a 1.21.1 minecraft version but not neo forge 1.21.1
Try using a different launcher like prism launcher where you can create a instance easily. Select 1.21.1 then neoforge on the bottom.
wait can i use curseforge to launch neo?
Honestly, I don't know. You probably can but if you use curse forge, I doubt it would work. I had to download some mods off of modrinth and some of those are not on curseforge. So not sure if all mods would tranfer
