minecraft\shaderpacks folder you opened in step 7. Put the BSL shader pack (.zip file) downloaded in step 5 into the.
– if in step 3 you chose to install optifine it will have an optifine profile, if iris it will have an iris profile – we recommend Iris, it’s a bit more optimized – in the top menu, select the “Installations” tab, click “New installation”, under the “Version” dropdown, select your preferred Minecraft version and click “Create”.