SPS Customizer

Allows Mekanism's SPS to use custom recipes through JSON.

13 Downloads

neoforgeutility

About this Mod

Allows Mekanism's SPS to use custom recipes through JSON.
Still a work in progress — I plan to fix bugs and add missing features.

Note: I spent 3 hours looking for a mod with this feature, couldn't find one, so I made it myself :)

Example:

{
  "type": "spscustomizer:sps",
  "input": {
    "chemical": "mekanism:hydrogen",
    "amount": 1000
  },
  "output": {
    "id": "mekanism:oxygen",
    "amount": 1
  },
  "energy": 1000000
}

Available Versions

SPS Customizer 1.1release

MC 1.21.1neoforge

June 18, 2026

How to Install SPS Customizer on Your Server

Order Server

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

Set neoforge Loader

In the panel under "Egg", select the neoforge loader and matching Minecraft version (1.21.1).

Install Mod

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

Compatibility

Mod Loaders

neoforge

Minecraft Versions

1.21.1

Server-side

✓ Required

Recommended RAM

4 GB(min. 3 GB)

Frequently Asked Questions

SPS Customizer server crashes on startup – what to do?

Most common cause: wrong neoforge 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 (1.21.1). You can switch loaders with one click in the panel.

Is SPS Customizer compatible with neoforge?

SPS Customizer officially supports neoforge for Minecraft 1.21.1. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with SPS Customizer – how to optimize performance?

Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if SPS Customizer 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.