MangoPenguin

Wireguard if you’re just using it yourself. Many various ways to manage it, and it’s built in to most routers already.

Otherwise Headscale with one of the webUIs would be the closest replacement.

There are some community webUIs for Headscale, headplane in particular looks pretty good: https://headscale.net/stable/ref/integration/web-ui/

I’m not sure otherwise how different the experience would be.

They have a list here of the models with performance and RAM usage data: https://immich.app/docs/features/searching/

You kind of just have to pick one, try it, and see if it crashes from low memory.

Also enable OpenVINO HWaccel, because it will be extremely slow otherwise.