Huss Labs 2 updated to version 1.4
Updated: Biomes O'Plenty
Added: TrackAPI, ImmersiveRailroading
Type in the modpack name (Huss Labs 2) or paste the following url into the search box.
Finally, click Install at the bottom right of the launcher after you select Huss Labs 2 from the list on the left. The launcher will handle everything else!