ATLauncher

Similar convenience to Modrinth App

Recommended Java settings

Access these Settings from the [Settings] -> [Java/Minecraft] tabs.

• I personally use Temurin JRE. Installing java is a fuck, you can figure this out yourself or use the default one.
• 6144 MiB memory at minimum. I personally use 8192 MiB.
• Launch Arguments:

-XX:+UnlockExperimentalVMOptions -XX:+DisableExplicitGC -XX:+UseG1GC -XX:ParallelGCThreads=12 -XX:-UseGCOverheadLimit -Dfml.ignorePatchDiscrepancies=true -Dfml.ignoreInvalidMinecraftCertificates=true -XX:MaxGCPauseMillis=50 -XX:SurvivorRatio=8 -XX:TargetSurvivorRatio=90 -XX:MaxTenuringThreshold=15 -XX:SoftRefLRUPolicyMSPerMB=10000 -XX:ReservedCodeCacheSize=2048M -XX:+UseStringDeduplication

Installation

1. Get the ATLauncher from here .
2. On the Accounts tab, login with your minecraft/microsoft/mojang account.
3. Go to the Packs tab, click on the Modrinth Icon in the left column, and search for Horizon - Gotek's SMP and click on the New Instance button. Choose the latest version.
4. You're done. Launch the modpack from the Instances tab.

Updating

1. Create Backups of your existing Instance. These are the important folders:

/minecraft
.
├── config
├── Distant_Horizons_server_data
├── _IAS_ACCOUNTS_DO_NOT_SEND_TO_ANYONE
├── replay_recordings
├── resourcepacks
├── saves
├── schematics
├── screenshots
├── shaderpacks
├── texturepacks
├── xaero

2. Go to the Instances Tab.
3. If an update is available, there should be a "Update" button to the right of the Play button. Choose the latest version.
4. Apply backups. I recommend using the config that came with the updates, as I cannot control/support mod configurations that differ from the modpack.