u3d
Set of tools to interact with Unity from command line.
TLDR
Open the project in the current directory using the correct Unity version
$ u3d
List installed versions of Unity
$ u3d list
List available versions of Unity that can be downloaded
$ u3d available
Download and install latest stable Unity version
$ u3d install latest_stable
Download and install Unity version and editor [p]ackages
$ u3d install [2021.2.0f1] -p [Unity,iOS,Android]