Astro Sync

Astro Sync

Auto modpack updater

by
346 Downloads
fabricforgelibrary
Rent Server with this Mod

About this Mod

About the mod

Astro Sync is an auto modpack updater mod that uses github to do so.

The use case

My server has mods that I'm still testing and haven't published yet, so common launchers won't include them in the modpack download. With Astro Sync I can ensure players get the latest version of my unreleased mods to play on the server automatically, removing the need to share files or Google Drive links.

How it works

It has a config file where you setup the github repository. All players that will download the server modpack need to have its config. Once a player starts Minecraft with the config and the mod installed, it will check with github if the mods have updates and if yes, will automatically download it and warn the player a new version was installed, requiring it to restart the game to apply changes. After this the player is good to go! If the server owner updates the repository with a new version, it will be automatically installed when the game is loaded again!

Warning!

Since this mod download files from github and puts it in your Minecraft folder, only use it with SERVERS YOU TRUST, as the server owner can put ANY file to run into your Minecraft installation. Saves and Resourcepacks folders are blocked to be changed by the mod. Astro Sync was designed to help updating and downloading mods for servers, however be extremely careful if someone else tells you to download it.

Available Versions

Astro Sync 3.0.0alpha
MC 1.21.11fabric
April 3, 2026
Astro Sync 1.0.0alpha
MC 1.20, 1.20.1forge
December 14, 2024

How to Install Astro Sync 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 (1.21.11).

3

Install Mod

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

Compatibility

Mod Loaders

fabricforge

Minecraft Versions

1.21.11, 1.20.1, 1.20

Server-side

Unsupported

Recommended RAM

4 GB(min. 3 GB)

Frequently Asked Questions

Astro Sync 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 (1.21.11). You can switch loaders with one click in the panel.

Is Astro Sync compatible with fabric and forge?

Astro Sync officially supports fabric, forge for Minecraft 1.21.11, 1.20.1, 1.20. Note: Forge and Fabric mods are NOT cross-compatible – pick one loader and stick with it. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with Astro Sync – how to optimize performance?

Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Astro Sync 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 Astro Sync 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
LicenseRef-All-Rights-Reserved
Server-side
Unsupported

Supported Versions

1.21.111.20.11.20