Setting up a game instance
That's the dev environment sorted, now we'll address the game instance.
This is a simplified version of the tutorial found on the packwiz website - it's recommended you look at that tutorial if you get stuck.
- To start, make sure you have Prism Launcher or a launcher similar to it that can execute pre-launch commands (if you are unsure as to what this means, download Prism anyway).
- Create an instance in the launcher with just the Minecraft version (1.18.2), and Fabric version (0.16.3). Increase memory allocation to about 6-8 GB for the instance, if you haven't already set it as a global value in your launcher.
- Download the packwiz installer jar from packwiz-installer-bootstrap, and put it into the
.minecraft/folder in the instance, not the.minecraft/mods/folder. If there isn't already a.minecraft/folder, you can just create a folder with that name, or ideally you can start the instance once and close out of it once the folders have been generated. - Now, set up your launcher to execute the pre-launch command. If you're using Prism, go to Edit Instance ⇒ Settings ⇒ Custom commands, then check the Custom Commands tick box, and paste the following command into the pre-launch command field:
"$INST_JAVA" -jar packwiz-installer-bootstrap.jar http://localhost:8080/pack.toml