The answer is probably no but does this setup require an internet connection after the initial setup?

My family asked me to set up security cameras at my grandmas place, which has no internet and they don’t want to pay monthly.

The idea is that family will visit and check the recordings regularely to see whether the services we hired do their job and not abuse my demented grandma.

I’m thinking of:

• a rpi/minipc that can do it’s own hotspot
• a huge ssd slapped onto it
• web interface that visitors can log into with a password
• 2-3 wifi cameras that connect to it