Click the Open Shader Pack Folder button and move your BSL .zip file into that window.
Open Minecraft, go to Options > Video Settings > Shader Packs . Download BSL Shaders here
Get the .zip file from one of the links above (do not unzip it). Click the Open Shader Pack Folder button and move your BSL
Choose either Iris (recommended for performance) or OptiFine . Download BSL Shaders here
To ensure you are downloading a safe version, use the official developer pages:
The standard repository for BSL Shaders on CurseForge . 🛠️ Quick Installation Guide
so you want to get BSL shaders and honestly. I don't blame you it is by far one of the best shaders packs out there in my opinion. YouTube·The Breakdown How to Download & Install BSL SHADERS for Minecraft 1.21.7