Minecraft SpeedRun Mods Auto Installer/Updater
original idea by pistacium
ModCheck can be run on the command line. This is useful for tools, powerusers, and more.
Try the --help command for information on all the command line options.
Using java -jar /path/to/modcheck-xyz.jar --path $INST_DIR update as a Pre-launch command in Prism Launcher or MultiMC will automatically update your mods on every launch.