1. Download or import the BareBones modpack into your preferred launcher.
2. Add any desired mods from the 'Optional' section of this readme to the BareBones instance.
3. Add any mods you want included in the modpack.
4. Run the modpack.
• If CrashAssistant notifies you of any problematic mods, remove them accordingly.
• If duplicate mod ids are found, remove any outdated versions.
5. Once the modpack has launched, either enter a new world and click the provided links in the chat window or navigate to <modpackinstance>/config/packcompanion/outputs and open the most recent html output log.
6. The PackCompanion output features a list of recommended actions to ensure a stable modded environment. Follow the advised actions whenever possible.
7. Once all changes have been made and Cleanroom is successfully launching, delete or disable the following mods.
   • PackCompanion
8. Launch the modpack and enjoy your updated instance!

1. Download a new instance of the modpack you wish to update.
2. Update the following mods to their most recent version if they are present.
   • Dynamic Surroundings
   • Orelib
3. Create an instance of the BareBones pack template using your preferred launcher.
4. Add any desired mods from the 'Optional' section of this readme to the BareBones instance.
5. Copy the config and mods folders from the BareBones instance into the other modpack.
6. Run the modpack.
   • If CrashAssistant notifies you of any problematic mods, remove them accordingly.
7. Once the modpack has launched, either enter a new world and click the provided links in the chat window or navigate to <modpackinstance>/config/packcompanion/outputs and open the most recent html output log.
8. The PackCompanion output features a list of recommended actions to ensure a stable modded environment. Because some mod updates may break CraftTweaker scripts, it is advised to only update a few mods at a time. If errors occur, you can either update the scripts to reflect any changes or revert to the previous version of the mod.
9. Once all changes have been made and Cleanroom is successfully launching, delete or disable the following mods.
   • PackCompanion
10. Launch the modpack and enjoy your updated instance!

Yes, there are three:

• Optifine
• Celeritas (Cleanroom Exclusive)
• Nothirium

The effectiveness of these mods varies heavily from user to user, with some people getting significantly better performance, while others get worse performance.

While not included in the 'Optional' section of this template, Nothirium is the BareBones recommendation. If adding Nothirium to your pack, be sure to also include Naughthirium.

Should you choose to add Optifine to your modpack, be sure to also include OptiNotFine.

You can read more information about these mods here: Render optimization mods

Culling mods need to perform calculations to determine whether an object should be culled. As a result, they will always have some processing overhead.

This means that these mods only have a performance increase once a world or base reaches a considerable number of entities or tile entities that are loaded and rendered.

These mods are safe to include by default, but their actual performance increase will vary on a case by case basis.

Optifine for 1.12.2 is extremely outdated and no longer supported by the developers. It increases load times and can cause rendering issues with modded entities. It is not incompatible with the BareBones template, but it may require additional configuration.

If you do choose to include Optifine, be sure to also add OptiNotFine to your modpack instance.

When it comes to optimizations and fixes there is a lot of misinformation in the community. Bad actors will describe massive performance gains while posting mods that do nothing (Performant) or actively make game performance worse (Frustum Culling).

BareBones is configured to automatically detect the majority of these problematic mods, but you should always be wary of any mod describing itself as an "Optimization" or "Performance" mod.

BareBones includes a number of features to help you find mods that cause issues, but there are new problematic mods being added to CurseForge and Modrinth on a daily basis.

When determining if a mod is actually useful, be sure to look out for these warning signs:

1. The mod description boasts improved FPS or increased optimization. Watch out descriptions that are incredibly vague and use key phrases such as "improved FPS", "reduced CPU/GPU load", "increased performance", or "improved optimization".
2. Don't fall for the hype. Very few (if any) mods can actually boost performance by 50% or by 100 FPS. Be wary of any mod that boasts extremely high performance gains.
3. Tons of features. If a mod description seems like it is too good to be true, it probably is. AI generated text leans towards sycophantic tones, telling you what you want to hear. Hundreds of additions with no incompatibilities is virtually impossible in modded environments.
4. The mod license is All Rights Reserved. While this isn't an immediate indication the mod is problematic, most mods that actually improve performance use open source licenses so other people can learn from or help improve the mod.
5. The mod is closed source. Most actual performance mods will post a link to a source repository so people can view the code. A closed source optimization mod is a good indicator that the mod author is trying to hide something.
6. The description heavily uses colored text symbols or emojis. While mod authors do try to spruce up their description pages, AI generated descriptions heavily utilize colored symbols for all of their section headers. If a description is AI generated, there's a high chance the mod is as well.
7. Beware small file sizes. While Minecraft mods are not exactly large, mod jars that are smaller than 20 KB are extremely rare. When they are that small, chances are that their effect is equally limited.

While none of these signs are enough to disqualify a mod on their own, together they serve as a decent litmus test for questionable mods.

CleanroomMC maintains a incomplete, but constantly updated list of depreciated mods and their forks. You can find this list here: Preparing Your Modpack