The resource packs and shaders from the videos
SpookyCat shared his resource packs and shaders, and later his whole setup.

Viewers kept asking which resource packs SpookyCat uses, so he posted them as an archive in SpookyTeam. They include Faithful Java 64x (not in every video) and a “clear water” pack that helps in PvP, even if the water looks worse.
He also shared shaders: Sildurs basic shaders v1.051 with motion blur, and ComplementaryUnbound r5.0.1, which many people use to film replays.
In November 2024 the full “SpookyCat build” followed, with mods, shaders, resource packs and instructions.