Thanks!

“Untagged” here means default VLAN with id:1 - the one used when nothing is set. By default all ports on the switch are set as untagged for this id.
Maybe i should have marked VLAN1 and VLAN2 as VLAN10 and VLAN20 (with respective id’s) to avoid confusion.

Yes currently its set to dumb switch but i can change/tag them according to my needs. Ive already created VLAN1 on edgerouters side for other devices (unifi AP, pc). So this part should not be more difficult in case of VLAN2. Except trunking. So what im asking here would connecting tagged ports (vlan2) on edgerouter and tagged ports on the switch with second cable work? Or should i still try to push both tagged and untagged traffic to switch through one cable

Can it monitor containers or some files?

Ive seen people building whole houses from empty bottles. He could do the same with those phones. He would end up with true “smarthome”

What if they dont ring but start to lockpick/bash your door right away? :D