To install this modpack, first download and install the Technic launcher, and log in with your minecraft account (Mojang or Microsoft). Locate the modpack through the launcher and click install, and you're ready to play!
You will also need the latest version of Java 64-bit, so make sure that is installed on your computer. If not, you can install it from Java's official website.
It is recommended that you click on "Launcher options" button in the top right corner of the launcher and change the amount of RAM under Java settings to at least 4 GB for this modpack to run well. Do not set this to a number greater than the amount of RAM on your computer.