Hello and kudos to everybody working on the ARDK!
Are there any plans to make the ARDK available as a package on the Unity Package Manager (UPM)? Thinking about future version upgrades, this would make management of package versions much easier, by just changing the required version in a Unity project’s manifest.json, like many other SDKs for Unity provide nowadays, instead of having to reimport the complete package manually. I would also argue, that it comes with the benefits of directly being able to specify requirements for any (minumium) versions of any other packages, that need to be installed in order for it to work.
You might wanna check out the following links for more details on the topic:
Keep up the good work and I hope to see ARDK being available as an external package soon 
Thx in advance!