So, I invited some external users. Then what?

I have the free account, signed up with a gmail account. I saw yesterday that the Tailscale team added support for inviting people, so I tried it out.

But i cant figure out how to let the invited users use my machines. I can the the users in the user-tab, but none of there machines (there should be at least one per account).

i’m probably missing something really simple. Is there anyone that got it working, that can give some pointers?

The ACL is unchanged from stock.