How do I use ATLauncher mods?

Per Instance:

1. Select the Instances tab on ATLauncher, then the modpack you want to modify.
2. Click “Settings” on the modpack.
3. Find the “Maximum Memory/RAM” entry and increase it to the amount you want in MB (4GB = 4096).
4. Click save at the bottom, done!

Oct 12, 2021