This is an unofficial Forge port of "FabricSkyboxes" by AMereBagatelle. While Forge supports custom skyboxes through Optifine, alternatives like Sodium are becoming more viable, sparking a need for a standalone skybox mod on Forge. This has been tested in a pack with 310+ mods and works fine, but if you run into any issues, please fill out a bug report.
This doesn't support Optifine skypacks directly, but you can convert them using a tool called MCPPPP. If you want a skypack ready to go, we've made a high quality one with 4K textures for our modpacks which you can download here. There are also some posted in #converted-skypacks in AMereBagatelle's Discord (don't bug them about support for this port).
Some screenshots:
Ensures the user always has core mods for the modpack, and allows prompting them to download optional mods on startup
Ensures the user always has core mods for the modpack, and allows prompting them to download optional mods on startup
