Should you have any issues or requests for me to add things, please make a discussion post!
Installing a modpack using the Technic Launcher is easy. If you don't already have the launcher downloaded, visit our download page to get the latest version.
Type in the modpack name (Optimized Vanilla 1.21.1) or paste the following url into the search box.
Finally, click Install at the bottom right of the launcher after you select Optimized Vanilla 1.21.1 from the list on the left. The launcher will handle everything else!
Should you have any issues or requests for me to add things, please make a discussion post!