diff --git a/.drone.yml b/.drone.yml
index b9718b8c..5e20924e 100644
--- a/.drone.yml
+++ b/.drone.yml
@@ -121,7 +121,7 @@ steps:
         from_secret: iso_web_ssh_port
       key:
         from_secret: iso_web_ssh_key
-      target: /srv/os
+      target: /srv/os/download
       source:
         - /var/nix/iso-cache/*.iso
         - /var/nix/iso-cache/*.iso.sha256
@@ -143,6 +143,6 @@ volumes:
 
 ---
 kind: signature
-hmac: 7b0b56a97294cd563eee2bde56abeea6dd0928e01729980a25f8c165a3f6e0f6
+hmac: 8823c7103f6a075bb291a497c7ab5d5db47a91f9bc7d8ef95329b5620c9cf91d
 
 ...
diff --git a/modules/core/networking.nix b/modules/core/networking.nix
index edfef42d..c5ec9cbe 100644
--- a/modules/core/networking.nix
+++ b/modules/core/networking.nix
@@ -36,6 +36,8 @@ in
       wifi.backend = "iwd";
     };
 
+    networking.firewall.enable = true;
+
     # Customized binary caches list (with fallback to official binary cache)
     nix.binaryCaches = cfg.binaryCaches;
     nix.binaryCachePublicKeys = cfg.publicKeys;
diff --git a/modules/core/services.nix b/modules/core/services.nix
index ebe3cf70..6ce74472 100644
--- a/modules/core/services.nix
+++ b/modules/core/services.nix
@@ -4,6 +4,8 @@
   # For rage encryption, all hosts need a ssh key pair
   services.openssh = {
     enable = true;
+    # If you don't want the host to have SSH actually opened up to the net,
+    # set `services.openssh.openFirewall` to false in your config.
     openFirewall = lib.mkDefault true;
     passwordAuthentication = false;
   };
diff --git a/modules/graphical/alacritty.nix b/modules/graphical/alacritty.nix
index e4e2f6ad..b389343c 100644
--- a/modules/graphical/alacritty.nix
+++ b/modules/graphical/alacritty.nix
@@ -100,10 +100,15 @@
       foreground = "0xe3e1e4";
     };
 
-    # Colors the cursor will use if `custom_cursor_colors` is true
+    # Cursor colors
+    #
+    # Colors which should be used to draw the terminal cursor.
+    #
+    # Allowed values are CellForeground/CellBackground, which reference the
+    # affected cell, or hexadecimal colors like #ff00ff.
     cursor = {
-      text = "0x1a181a";
-      cursor = "0xe3e1e4";
+      text = "CellBackground";
+      cursor = "CellForeground";
     };
 
     # Colors used for the search bar and match highlighting.
@@ -115,14 +120,25 @@
         background = "0x1a181a";
       };
       focused_match = {
-        foreground = "0xe5c463";
-        background = "0xe3e1e4";
+        foreground = "CellBackground";
+        background = "CellForeground";
       };
       #bar =
       #  background = "#c5c8c6";
       #  foreground = "#1d1f21";
     };
 
+    # Selection colors
+    #
+    # Colors which should be used to draw the selection area.
+    #
+    # Allowed values are CellForeground/CellBackground, which reference the
+    # affected cell, or hexadecimal colors like #ff00ff.
+    selection = {
+      text = "0x1a181a";
+      background = "0xf85e84";
+    };
+
     # Normal colors
     normal = {
       black = "0x1a181a";
diff --git a/modules/paranoia/default.nix b/modules/paranoia/default.nix
index b70817b7..202d9f5a 100644
--- a/modules/paranoia/default.nix
+++ b/modules/paranoia/default.nix
@@ -25,5 +25,32 @@ in
     services.tor.settings = {
       UseBridges = true;
     };
+
+    # The options below are directly taken from or inspired by
+    # https://xeiaso.net/blog/paranoid-nixos-2021-07-18
+
+    # Don't set this if you need sftp
+    services.openssh.allowSFTP = false;
+    services.openssh.openFirewall = false; # Lock yourself out
+
+    # Limit the use of sudo to the group wheel
+    security.sudo.execWheelOnly = true;
+
+    # Remove the complete default environment of packages like
+    # nano, perl and rsync
+    environment.defaultPackages = lib.mkForce [ ];
+
+    # fileSystems."/".options = [ "noexec" ];
+
+    services.openssh = {
+      kbdInteractiveAuthentication = false;
+      extraConfig = ''
+        AllowTcpForwarding yes
+        X11Forwarding no
+        AllowAgentForwarding no
+        AllowStreamLocalForwarding no
+        AuthenticationMethods publickey
+      '';
+    };
   };
 }