fix: misc cleanups

rossby/fs-work/default.nix

@@ -25,6 +25,10 @@ in {
     # services.udev.extraRules = ''
     #     KERNEL=="ibp65s0", SUBSYSTEM=="net", ATTR{create_child}:="0x7666"
     # '';
+    security.sudo.extraConfig = ''
+      %sif ALL=(ALL) NOPASSWD: /run/current-system/sw/bin/singularity
+      %admin ALL=(admin) NOPASSWD: ALL
+    '';
 
     environment.systemPackages = with pkgs; [
         rdma-core
@@ -101,10 +105,6 @@ in {
       useNetworkd = true;
       useDHCP = false;
       hostName = name;
-      defaultGateway = {
-        interface = "enp1s0np0";
-        address = "172.16.239.1";
-      };
       firewall = {
         allowedTCPPorts = [];
         allowedUDPPorts = [];