I have the usual PC based BI setup with 2 HDDs. New to all this and considering someone could run off with the PC. I know the cams have an SD card backup but are you more exprienced folks using some kind of NAS backup offsite? Or is that overkill because after looking into it, it sure is expensive (approaching $900 even on Prime Day for a 4bay plus decent sized (only one) HDD. I have read about some folks using BackBlaze but it seems despite being touted as "continuous" backup its actually every hour. Is setting up something simple such as emailing or uploading to Google Drive of only motion videos possible and practical? I have ATT&T Fiber 1G. Thank you. Apologies if these questions are too elementary. Am just trying to sort it all out.