Not sure how I can share those to be honest.
I've only done 2 things to the device:
1/ setup the WiFi
2/ Setup Tailscale
And the Tailscale setup boiled down to figuring out how to get it to advertise the subroutes.
Turned out it's the Allow Remote Access LAN option, which is visible only when Tailscale is enabled and Custom Exit Node is OFF
The rest is just enabling the subnet route in the Tailscale admin page:
And enabling Custom Exit Node from the router's menu and selecting my desired exit node
And that's all I did