Off-line use of Homebase2 & Eufycam 2c

I have two homebase2 installation setup. Both working perfectly. The second one i want to install on my property in the mountains. Just for surveillance, taking pictures when i am not there. Problem, i don’t have a internet connection or 4G and can’t have neither of both.
Is there a way to get it functional w/o internet and running as standalone?