diff --git a/README.md b/README.md
index df3a877..6f0b954 100644
--- a/README.md
+++ b/README.md
@@ -43,6 +43,7 @@ Secrets are managed by the [sops-nix](https://github.com/Mic92/sops-nix) nixos/h
 
 - General secrets are stored within the `secrets` directory.
 - System specific secrets are stored within their respective `systems/<system_type>/<system_name>/secrets` directory.
+- User secrets are stored within their respective `homes/<system_type>/<user_name>/secrets` directory.
 
 The following command may be used to convert the SSH host key of a new machine to an age key:
 
@@ -66,7 +67,7 @@ You may also encrypt arbitrary binary formats, like .cfg, using the following co
 nix-shell -p sops --run "sops -e original_file.cfg > secrets/encrypted_file.cfg"
 ```
 
-Lastly, when adding new systems, make sure to update any required secret files with the following command:
+Finally, when adding new systems, make sure to update any required secret files with the following command:
 
 ```sh
 nix-shell -p sops --run "sops updatekeys secrets/example.yaml"
@@ -117,7 +118,7 @@ Some of my future goals for this flake are:
 - Further refining my usage of the Nix language, through language best-practices and CLI dev tools.
 
 ## 🏗️ Structure
-The structure this flake aims to build on is relatively simple to grasp.
+This flake follows an opinionated directory structure, described below.
 
 ```
 flake.nix  --> The flake.
diff --git a/homes/x86_64-linux/jo/apps/packettracer/default.nix b/homes/x86_64-linux/jo/apps/packettracer/default.nix
new file mode 100644
index 0000000..2b26736
--- /dev/null
+++ b/homes/x86_64-linux/jo/apps/packettracer/default.nix
@@ -0,0 +1,9 @@
+{
+  ...
+}:
+{
+  puzzlevision.apps.packettracer = {
+    enable = true;
+    binaryPath = ./Packet_Tracer822_amd64_signed.deb;
+  };
+}
diff --git a/homes/x86_64-linux/jo/default.nix b/homes/x86_64-linux/jo/default.nix
index eff88f9..4905028 100644
--- a/homes/x86_64-linux/jo/default.nix
+++ b/homes/x86_64-linux/jo/default.nix
@@ -8,6 +8,7 @@
     ./apps/discord
     ./apps/firefox
     ./apps/vicinae
+    ./apps/packettracer
   ];
 
   puzzlevision = {
@@ -28,9 +29,6 @@
     };
   };
 
-  # Notify on systembus events
-  services.systembus-notify.enable = true;
-
   sops.secrets.wakatime-cfg = {
     format = "binary";
     sopsFile = ./secrets/wakatime.cfg;
diff --git a/modules/home/apps/packettracer/default.nix b/modules/home/apps/packettracer/default.nix
new file mode 100644
index 0000000..3cc9e22
--- /dev/null
+++ b/modules/home/apps/packettracer/default.nix
@@ -0,0 +1,28 @@
+{
+  config,
+  self,
+  pkgs,
+  lib,
+  ...
+}:
+let
+  inherit (self) namespace;
+  inherit (self.lib) mkOpt;
+  inherit (lib) mkEnableOption types mkIf;
+
+  cfg = config.${namespace}.apps.packettracer;
+in
+{
+  options.${namespace}.apps.packettracer = {
+    enable = mkEnableOption "the Cisco Packettracer application, a network emulator.";
+    binaryPath =
+      mkOpt types.path null
+        "The path of the Packettracer binary. Has to be downloaded from Cisco Netacad";
+  };
+
+  config = mkIf cfg.enable {
+    home.packages = with pkgs; [
+      (ciscoPacketTracer8.override { packetTracerSource = cfg.binaryPath; })
+    ];
+  };
+}