That’s mostly correct. If we want to be super technical, I’m not “logging in” to my router, just using it as a Tailscale network bridge to gain LAN access so I can SSH from my phone to my server. But, in general, yeah. I currently don’t allow any direct access to my server from the internet. The only way to access it is Tailscale. I have Tailscale installed on both my desktop (always on) and my router (also, always on). The reason I installed it on the router is because my desktop is also full disk encrypted. So, if there’s a power outage then both the server and desktop will reboot and both will be waiting for LUKS unlock, rendering my desktop useless as a Tailscale jump point. Since the router boots automatically then it will always start back up and allow Tailscale access after an outage and therefore I can use it to access my LAN and SSH to the server to enter the password. Basically the same setup you’ve got with the RPi - having a node that comes online automatically after a power outage, automatically starts Tailscale, and allows LAN access. You use an RPi, I use my router. (I briefly did the exact same thing as you, with an RPi, until I found I could install it on the router : )