> Routers, IP cameras, etc.

Those already exist: OpenWRT, OpenIPC. I wish more hardware was available though, especially for cameras.

Do you have any cameras that support openipc you’d recommend?

I need surveillance cameras (outdoor mostly) but the cheap ones I found are a horrid proprietary mess. I even bought and returned one after the setup was complex and invasive.

Basically all I need is access to the live stream from a raspberry pi where I can store and process the video.