figured it out, this is what seems to work for both the base domain and /ipfs and /ipns:
```
location / {
        proxy_pass http://localhost:8080;
	proxy_set_header Host $host;
    }
    location /ipfs/ {
        proxy_pass http://localhost:8080/ipfs/;
    }
    location /ipns/ {
        proxy_pass http://localhost:8080/ipns/;
    }
```