I anyone running
Blue Iris with camera at another location?
Yes! For two years I am running cameras across a VPN tunnel between a remote property I can only occassionally visit and primary residence. As
@bp2008 mentioned the UPLOAD bandwidth at the remote location plus any DATA CAPs are the main hurdles. I use 3x 2MP cameras at very low frame rates, originally so I wouldn't exceed Comcrap's (25/5) cable internet 1000GB data cap, but now I do it so I don't exceed the upload bandwidth of my new fiber provider (10/3) which was cheaper. You will also want to plan how the system recovers in the event of an extended internet or power outage, so you don't have to return to the site to get it back up and running. While a UPS will help with brownouts and brief loss of power, plan other options to recover from 6-12 hour outages if those are possible at the second location.
Based on my experience, limited upload/datacap recording isn't always useful when an even happens (you wont have many frames to figure out what happened), so would recommend a cheap desktop
Blue Iris machine or NVR recording at the remote site at 10-15fps, and sending fewer frames across the VPN. That way you have high frame video available in case of most crimes or incidents at the remote site you could download, but in the super-rare chance they would steal the actual recording system you have something offsite as well.