Clean up secret management

Update readme

README.md

@@ -1,22 +1,26 @@
 # nixos-laptop
 
-NixOS configuration for my laptop.
-My configuration is simple: I have one personal laptop with one user.
+NixOS configuration for my personal laptop.
+
+Currently contains config for three systems:
+- **sue**: My current laptop, a Dell XPS 9315
+- **x260**: My previous laptop, a Lenovo Thinkpad x260 which is broken
+- **x201**: A Lenovo Thinkpad x201 which I have as a backup system
 
 ## Features
 
-- Nixpkgs 23.11
-- Flakes!
+- Nixpkgs 24.05
 - [Nix User Repository (NUR)](https://github.com/nix-community/NUR)
     - Currently only used for Firefox Plugins
 - [Home Manager](https://github.com/nix-community/home-manager)
-    - For managing my configuration for my user
-- [Agenix](https://github.com/ryantm/agenix)
-    - To deploy global system secrets, like:
-        - Wireguard private key and shared secret
-- [Homeage](https://github.com/jordanisaacs/homeage)
-    - To deploy secrets in my home directory, like:
-        - SSH keys
-        - Syncthing private key
+    - For managing the configuration for my user
+- [sops-nix](https://github.com/Mic92/sops-nix)
+    - For secret management
 - [nixos-hardware](https://github.com/NixOS/nixos-hardware)
-    - To add hardware-specific tweaks to NixOS for my laptop (currently a Levono ThinkPad x260)
+    - To add hardware-specific tweaks to NixOS for my laptop
+- [stylix](https://stylix.danth.me/)
+    - Apply theming and styling to many programs
+- [lanzaboote](https://github.com/nix-community/lanzaboote)
+    - Secure boot for NixOS
+- [disko](https://github.com/nix-community/disko)
+    - Declarative disk partitioning and formatting; currently only used for my x201