I have created a script to batch download the modules I frequently use in Omeka S. I plan to update it gradually.

I hope this serves as a helpful reference.

# Module
## CustomOntology
version=3.3.5.1
name=CustomOntology
wget https://github.com/Daniel-KM/Omeka-S-module-$name/releases/download/$version/$name-$version.zip
unzip $name-$version.zip
rm $name-$version.zip

## IIIF Server
version=3.6.6.7
name=IiifServer
wget https://github.com/Daniel-KM/Omeka-S-module-$name/releases/download/$version/$name-$version.zip
unzip $name-$version.zip
rm $name-$version.zip

## Universal Viewer
version=3.6.4.5
name=UniversalViewer
wget https://github.com/Daniel-KM/Omeka-S-module-$name/releases/download/$version/$name-$version.zip
unzip $name-$version.zip
rm $name-$version.zip

## iiif viewers
wget https://github.com/omeka-j/Omeka-S-module-IiifViewers/releases/download/1.1.0/IiifViewers-1.1.0.zip
unzip IiifViewers-1.1.0.zip
rm IiifViewers-1.1.0.zip

## easy admin
wget https://github.com/Daniel-KM/Omeka-S-module-EasyAdmin/releases/download/3.3.7/EasyAdmin-3.3.7.zip
unzip EasyAdmin-3.3.7.zip
rm EasyAdmin-3.3.7.zip