If the router reconnects to the internet when it factory resets and it still works as a gateway, there may still be hope. You’d need some SSH host on another machine behind the router; you’d probably also need some sort of minimal VPS. You could setup a reverse SSH tunnel on the SSH host that would tunnel through the router to the VPS, then you’d be able to connect through the VPS into your network.

Honestly tho, this is a lot of work and if time is tight you might just wanna roll to a store and buy whatever cheap router you can find to limp along til you get back.

Did you follow a specific guide or refer to specific documentation for the reverse proxy? I’ve tried (admittedly not super hard) multiple times to set one up with nginx with no luck.

I’m not sure as that’s not a feature I used at all. I normally scale recipes in my brain, for better or worse hahah.

I dig the simplicity of Cooklang