Recently I read (in articles such as this one) that it is possible to use the Raspberry Pi Zero in 'USB/Ethernet gadget mode'.
Now my modem has two USB ports, which the manual says can be used for file sharing or printer sharing.
It might be wishful thinking, but I was wondering if it might be possible to connect through this USB port with the router's internet, allowing the raspberry pi zero to:
- Connect to the internet
- Receive power
- Broadcast its presence (using e.g. mDNS) to all locally connected computers, so it can receive requests from them.