> even logging into my router (with my permission)

This is exactly why I want to migrate to a OpenWRT router, companies should not just be able to hop in my network like this. And I'd love to like the Flint 3 I stayed away from it because it didn't have upstream openwrt compatibility but I just saw this repo that might fix my issue: perceival/openwrt-flint3

Is that the context? In thinking op here might just opened a port and added the keys off the support agent and removing them after.