Nucleus-Editor

A Lightweigt ImGui Implementation

by
20 Downloads
fabric
Rent Server with this Mod

About this Mod

This is a lightweigt implementation of dear imguis java libs, also containing a render callback for mods to subscribe to. can be used via

maven { url 'https://maven.uuid.gg/releases' }
modApi("com.redpxnda.nucleus:nucleus-editor-fabric:${rootProject.minecraft_version}+${rootProject.nucleus_editor_version}")
jarjaring it is fully allowed if desired, altough a fair warning, at this point in time there seem to be some conflict with other imgui shipping mods like veil. we are looking into resolving these without just shipping the same imgui version if possible, as wed prefer a stable solution. we recommend to use the proper maven for mod-devs, as it pulls dependencies properly

on neoforge

forgeRuntimeLibrary("io.github.spair:imgui-java-binding:$imgui_version")
forgeRuntimeLibrary("io.github.spair:imgui-java-lwjgl3:$imgui_version") {
    exclude group: 'org.lwjgl'
    exclude group: 'org.lwjgl.lwjgl'
}

forgeRuntimeLibrary("io.github.spair:imgui-java-natives-linux:$imgui_version")
forgeRuntimeLibrary("io.github.spair:imgui-java-natives-macos:$imgui_version")
forgeRuntimeLibrary("io.github.spair:imgui-java-natives-windows:$imgui_version")

Is also required for the runtime non-mod libraries.
In 1.0.0 we use imgui version 1.88.0

Available Versions

Nucleus-Editor 1.0.0release
MC 1.21.4fabric
February 16, 2026

How to Install Nucleus-Editor on Your Server

1

Order Server

Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).

2

Set fabric Loader

In the panel under "Egg", select the fabric loader and matching Minecraft version (1.21.4).

3

Install Mod

Open the mod browser in the dashboard and search for "Nucleus-Editor". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.

Compatibility

Mod Loaders

fabric

Minecraft Versions

1.21.4

Server-side

Unsupported

Recommended RAM

4 GB(min. 3 GB)

Frequently Asked Questions

Nucleus-Editor server crashes on startup – what to do?

Most common cause: wrong fabric version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 3 GB RAM is allocated and the loader matches the mod version (1.21.4). You can switch loaders with one click in the panel.

Is Nucleus-Editor compatible with fabric?

Nucleus-Editor officially supports fabric for Minecraft 1.21.4. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with Nucleus-Editor – how to optimize performance?

Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Nucleus-Editor consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.

Rent Modded Server

Install Nucleus-Editor with just one click on your server.

Recommended RAM
4 GBab €8/mo
Min. 3 GB | +1 GB pro 8 Spieler
Create Server Now
1-Click Mod Install
NVMe SSD Storage
DDoS Protection included

Details

License
ISC License
Server-side
Unsupported

Supported Versions

1.21.4