andrzejczaklight

Name: andrzejczaklight
Price: 8 EUR
Author: krxl

Optimized

by krxl

8 Downloads

0 Followers

fabricMC 1.21.11lightweightoptimization

Rent andrzejczaklight Server

About this Modpack

andrzejczaklight is a highly optimized modpack based on andrzejczakpack

List of features

Optimization

BadOptimizations by thosea - lightmap updates, debug logic, sky color calculation
Better Block Entities by cseden - block entities rendering
Concurrent Chunk Management Engine (Fabric) by ishland - chunk generation
Dynamic FPS by juliand665 - background framerate
Entity Culling by tr7zw - not visible entities rendering
Fast Noise by ZenXArch - world generation
FerriteCore by malte0811 - memory usage
ImmediatelyFast by RaphiMC - immediate mode rendering
Ixeris by decce6 - event polling
Krypton by astei - multiplayer networking stack
Lithium by jellysquid3 - game logic
ModernFix-mVUS by Coredex - game launch, memory usage
More Culling by FX - not visible things other than entities rendering
ScalableLux by ishland - light updates
Sodium by jellysquid3 - game rendering
ThreadTweak by getchoo - thread scheduling
Very Many Players (Fabric) by ishland - game simulation, multiplayer high player count

Framework

Cloth Config API by shedaniel - More Culling dependency
Fabric API by modmuss50 - most mods dependency

Installation

Automatic

In the Modrinth App, Prism Launcher, or ATLauncher, there should be added a new instance with the downloaded mrpack file imported. If the version is not detected, 1.21.11 with the most recent version of Fabric mod loader must be used

Manual

First, downloaded mrpack file needs to be converted to zip using an external tool. If it has never been done, Fabric installer must be downloaded and ran with the most recent loader version for 1.21.11 chosen. After that a new instance should have been created in the game launcher

Next - inside .minecraft in the %appdata% file directory in Windows, ~/Library/Application Support/minecraft in macOS, or ~/.minecraft in Linux - config, mods, resourcepacks, shaderpacks, and options.txt (provided they exist) have to be removed and then replaced with the contents of the zip file

Available Versions

based on andrzejczakpack 1.1beta

MC 1.21.11fabric8 downloads

June 5, 2026

How to Set Up a andrzejczaklight Server

Order Server

Choose at least 4 GB RAM (6 GB recommended for andrzejczaklight). Based on player count: per 8 players.

Install Modpack in Dashboard

Open the modpack browser in the dashboard, search for "andrzejczaklight" and click "Install". The fabric loader and Minecraft 1.21.11 are configured automatically.

Start Server & Play

Start the server – all mods are loaded automatically. Share the server IP with friends and play together!

Frequently Asked Questions

andrzejczaklight server crashes or won't start – what to do?

Most common causes: insufficient RAM or wrong fabric loader. Check latest.log for "OutOfMemoryError" → increase RAM to at least 6 GB. For "Mixin" or "ClassNotFoundException" errors: modpack version and loader don't match. With Mado Hosting, loader and Minecraft version are auto-configured on modpack install – preventing most startup issues.

How much RAM does a andrzejczaklight server really need?

Minimum 4 GB, recommended 6 GB for stable performance. per 8 players. Important: Minecraft modpacks need more RAM than vanilla – plan extra per additional player. With Mado Hosting, you can scale RAM up live at any time without data loss (from €8/month).

Can I add custom mods to andrzejczaklight without conflicts?

Yes, but check compatibility: only use mods for the same loader (fabric) and same Minecraft version (1.21.11). Common issues: ID conflicts with recipe mods and incompatible coremod versions. The Mado dashboard mod browser only shows compatible mods and warns about known conflicts.

andrzejczaklight server lagging – performance tips

1) Increase RAM to 6 GB+. 2) Reduce server view-distance to 8 (server.properties). 3) Pre-generate chunks with the "Chunky" plugin. 4) Use /spark profiler to check which mods consume the most tick time. With Mado Hosting, all servers run on NVMe SSDs with dedicated CPU cores – eliminating hardware as a bottleneck.