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