Hello there!,
So i'm trying to make shadowsocks work with mullvad via wireguard but somehow I can't figure out how it works.
I did however checked some documentation but I don't seem to get it connected, from what I understand or atleast what I think is I have to use their bridge and set it up as remote server in the luci app for shadowsocks like so:
I believe that the server port can be anything atleast I think, there are a few guides showing port 443 aswell, the server ip is the mullvad bridge server, I also tried putting the non bridge wireguard ip in it but that doesn't work either.
and on the local instances tab I have this:
if im right or atleast I think I do, the tunnel address forwards it to the wireguard server this is not a bridge one but a non bridge wireguard server, while the 185.65.xx.xx ip is the shadowsocks bridge or server.
then I replace inside the wireguard interface the peer in the endpoint: 127.0.0.1 and port 1080 but somehow I don't receive rx packets on the interface so something is wrong.
I also tried to use a local ss client but I can't get it to work.
someone had success configurating it?, could you show examples? 
thanks!