Fix firefox launch time.

nix/configuration/configuration.nix

@@ -9,6 +9,7 @@
       ./boot.nix
       ./zfs.nix
       ./network.nix
+      ./roles/firewall
       ./roles/graphics
       ./roles/sound
       ./roles/sway
@@ -88,6 +89,8 @@
     vulkan-tools # for vkcube TODO move to better role
     xorg.xeyes # to test which windows are using x11 TODO move to better role
     ripgrep
+    strace
+    tcpdump
   ];
 
   services.openssh = {
@@ -109,12 +112,6 @@
     ];
   };
 
-  # Open ports in the firewall.
-  networking.firewall.allowedTCPPorts = [ 22 ];
-  networking.firewall.allowedUDPPorts = [ ];
-  # Or disable the firewall altogether.
-  # networking.firewall.enable = false;
-
   # Check what will be lost with `zfs diff zroot/linux/root@blank`
   boot.initrd.systemd.enable = lib.mkDefault true;
   boot.initrd.systemd.services.zfs-rollback = {