ps_class_35_hymek.zip is a release file of the Minecraft resource pack Class 35 'Hymek' for Immersive Railroading, made for Minecraft 1.15-Snapshot, 1.10-Snapshot, 1.14.4, 1.14.1, 1.12.1, 1.12, 1.14.3, 1.15, 1.16.5, 1.10.2, 1.11, 1.15.2 and more. It was published on April 6, 2022 and is 17 MB in size. For the full description, screenshots and every other version, visit the Class 35 'Hymek' for Immersive Railroading resource pack page.
How to install: Put the .zip into .minecraft/resourcepacks (do not extract it) and enable it under Options → Resource Packs.