I live in a condo complex andw have a small manufacturing lab that I would like remotely manage over the internet.

It's just a resin and pla 3d printer. But to be able to manage and monitor print jobs without having to get out of my desk, walk to the garage, make sure everything is working, etc. would be a-mazing! :)

Sadly the garage is detached. And I do not have line-of-sight to it or my equipment. Between my condo and the garage, there are 3 other units (we share a common wall):

You can see here to get an idea of what I have: https://imgur.com/a/GRvnQgG

On the simple diagram, there is a pathway (not shown) that goes from the bottom straight to where my garage is. But I'm not sure how helpful that is.

Hoping someone has some advice or can offer up any assistance with this. Cause I'm at a loss for a descent solution.

Edit: One thing I forgot to add - unless there is a need, the HOA I have doesn't allow us to run any wires or mount anything to the external walls of the complex. If we do it's a heavy fine.