KotlinMCUI-Backend (Port)

A port of KotlinMCUI-Backend by 2894638479 to modern versions.

9 Downloads

fabriclibrarymanagement

Rent Server with this Mod

Screenshots

About this Mod

KotlinMCUI-backend

This is a backend mod for the KotlinMCUI mod, which has been ported to 26.1+ versions. The mod KotlinMCUI and KotlinMCUI-backend are both made by 2894638479

This mod is a library mod, it doesn't add anything by itself, it lets other mods add things easier.

What it does

This mod acts as a connection between a mod that uses the frontend KotlinMCUI and another mod that uses the features added by it. I have not made any changes to it other than porting and fixing a few bugs.

Docs:

English New Docs (Translation)

Original Docs CN

Thats all.

Available Versions

KotlinMCUI-Backend (Port) 1.0.0-alpha.2alpha

MC 26.1, 26.1.1, 26.1.2fabric

July 5, 2026

KotlinMCUI-26.1 1.0.0-alpha.1alpha

MC 26.1, 26.1.1, 26.1.2fabric

June 22, 2026

How to Install KotlinMCUI-Backend (Port) on Your Server

Order Server

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

Set fabric Loader

In the panel under "Egg", select the fabric loader and matching Minecraft version (26.1.2).

Install Mod

Open the mod browser in the dashboard and search for "KotlinMCUI-Backend (Port)". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.

Compatibility

Mod Loaders

fabric

Minecraft Versions

26.1.2, 26.1.1, 26.1

Server-side

✗ Unsupported

Recommended RAM

4 GB(min. 3 GB)

Frequently Asked Questions

KotlinMCUI-Backend (Port) 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 (26.1.2). You can switch loaders with one click in the panel.

Is KotlinMCUI-Backend (Port) compatible with fabric?

KotlinMCUI-Backend (Port) officially supports fabric for Minecraft 26.1.2, 26.1.1, 26.1. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with KotlinMCUI-Backend (Port) – how to optimize performance?

Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if KotlinMCUI-Backend (Port) 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.