David.
I do video astro remotely - two ways. I started with a long 20m USB extension cord from a computer inside to a 12V powered USB hub sitting on the scope (I got it from MWAVE). You can run sharpcap/stellarium etc on the computer inside. This is the easier way to do it.
The other way is to use wifi - but it can be fiddly to set up and has some issues (see below). As Dunk says, a NUC, is a great option. But I have a PCstick on the telescope - its really small, uses less power and has enough grunt/memory etc for video astronomy. e.g.
https://www.mwave.com.au/product/int...AaAiouEALw_wcB
I connect to it from my computer inside via wifi. I use RDPwrap to control the PCstick (you can also use remote desktop client etc). There's a few threads about it on cloudy nights, e.g.
https://www.cloudynights.com/topic/5...in-eaa-heaven/. Read this thread!!!
I power the PCstick from the 12V at the scope with a ciagerette plug-USB adaptor.
For image capture and stacking/processing, I have sharpcap running on the stick. You can also control the telescope from the stick - use Stellarium & Stellarium Scope. I usually use sky safari - but this is a separate bluetooth connection and I run that from my phone.
The only issue is that the wifi on the PCstick is pretty crap. It has a short range and can get blocked by all the metal on your scope. I've stuck a big USB-wifi dongle on the stick to extend its range. Then you are left with just one USB3 port - so I use a 12V powered USB hub if I have more than one camera connected.
I'll put up a pic of how I do it tonight. Or if you go to NSAS viewing nights I occasionally get up there.
Wireless USB hub sharing etc doesn't work with this. Another option is to use a USB hub than has ethernet connectivity - that will go a long way. I haven't tried this - but others on cloudy nights have.
Chris