Merge pull request 'fix(server): open mountd port 20048 so NFS clients can scan and mount' (#74) from worktree-fix-nfs-mountd-firewall into main

Reviewed-on: #74

modules/build-types/server.nix

@@ -88,5 +88,9 @@ in
     '';
   };
 
-  networking.firewall.allowedTCPPorts = [ vars.ports.nfsRpcbind vars.ports.nfsd ];
+  # mountd (20048) is needed for showmount/NFSv3 mount protocol — without it
+  # clients can reach portmapper (111) and get the mountd port back, then
+  # time out trying to connect to it. All three ports need TCP and UDP.
+  networking.firewall.allowedTCPPorts = [ vars.ports.nfsRpcbind vars.ports.nfsd vars.ports.nfsMountd ];
+  networking.firewall.allowedUDPPorts = [ vars.ports.nfsRpcbind vars.ports.nfsd vars.ports.nfsMountd ];
 }