It is TECHNICALLY possible, but not worth actually thinking about.
homeassistant
Home Assistant is open source home automation that puts local control and privacy first. Powered by a worldwide community of tinkerers and DIY enthusiasts. Perfect to run on a Raspberry Pi or a local server. Available for free at home-assistant.io
Thanks for the quick response.
No, your sever will not by default route network traffic between the two separate networks. That would only happen if you intentionally installed and configured extra software to do that.
You might want to look into getting a more advanced home router that would allow you use VLANs to isolate your network cameras rather than running a separate hardware router. This is a common way to isolate Wifi smart home devices, and allows you easily create separate VLANs with different levels of network access.
I have AdGuard Home connected to the isolated network (running on home assistant) so I can use the DHCP server and UI. Any chance AdGuard could be that sort of extra software you are talking about?
I’m not overly familiar with Adguard, but I would say no. Adguard provides an ad blocking DNS sever and DHCP server, but neither of those handle routing.
Thanks for the response. That’s a big relief.