@malte
If self hosted you can set up as much security as you want with encrypted traffic:
"Optional: If you plan to access this instance from outside your local network, we strongly recommend putting it behind a reverse proxy like Caddy or NGINX with HTTPS and authentication. You can even pair it with a secure tunneling solution"
I will try to lab around with it in the comming weeks on my proxmox server at home as I'm lookinh for similar solutions