Skyboxify Mod 1.21.2–26.3

You can define multiple skyboxes in a resourcepack that overlay on top of each other giving cool effects, customizability includes changing blend mode, axis rotation, speed, displaying at certain heights, and more.

A skybox defines a texture that includes 6 smaller textures that are stiched together which define what you see in the world being the top, bottom, left, right, front, and back of the world sky visually in 3d world space.