diff --git a/home-manager/commands/commands.nix b/home-manager/commands/commands.nix
index aa233f5..b05120b 100644
--- a/home-manager/commands/commands.nix
+++ b/home-manager/commands/commands.nix
@@ -8,6 +8,7 @@
 {
   imports = [
     ./direnv.nix
+    ./custom/custom.nix
     ./eza.nix
     ./fastfetch/fastfetch.nix
     ./git.nix
@@ -24,11 +25,13 @@
     age-plugin-yubikey
     agedu
     bat
+    b3sum
     btop
     cbonsai
     curl
     dig
     dust
+    esptool
     fd
     ffmpeg-full
     fzf
@@ -39,11 +42,11 @@
     lazygit
     nmap
     ocamlPackages.utop
-#    opencode
+    opencode
     openconnect
     openssl
-    putty
     ripgrep
+    sage
     tailscale
     termusic
     timg
diff --git a/home-manager/commands/custom/build.nix b/home-manager/commands/custom/build.nix
new file mode 100644
index 0000000..13d26fe
--- /dev/null
+++ b/home-manager/commands/custom/build.nix
@@ -0,0 +1,10 @@
+# build.nix
+let
+  # Import your nixpkgs channel. The <> syntax finds it automatically.
+  pkgs = import <nixpkgs> {
+    # Apply your overlay here
+    overlays = [ (import ./sage.nix) ];
+  };
+in
+# This file now evaluates to exactly one thing: the sage package.
+pkgs.sage
diff --git a/home-manager/commands/custom/custom.nix b/home-manager/commands/custom/custom.nix
new file mode 100644
index 0000000..801356c
--- /dev/null
+++ b/home-manager/commands/custom/custom.nix
@@ -0,0 +1,12 @@
+{
+  pkgs,
+  hostname,
+  ...
+}:
+
+{
+  nixpkgs.overlays = [
+    (import ./sage.nix)
+  ];
+
+}
diff --git a/home-manager/commands/custom/sage.nix b/home-manager/commands/custom/sage.nix
new file mode 100644
index 0000000..9649ddb
--- /dev/null
+++ b/home-manager/commands/custom/sage.nix
@@ -0,0 +1,27 @@
+final: prev: {
+
+  # We are adding a package named 'sage' to the package set
+  sage = prev.rustPlatform.buildRustPackage rec {
+    pname = "sage";
+    version = "0.1.0";
+
+    src = prev.fetchFromGitHub {
+      owner = "Rogue-King";
+      repo = "sage";
+      rev = "v${version}";
+      sha256 = "sha256-YPVxx2s3Q4F+Egtm28SsUY4x1JLRA4lW08v6mEaCLTw=";
+    };
+
+    # Placeholder hash for cargo dependencies - the build will tell you the correct one.
+    cargoHash = "sha256-5zM0NJjtj+4DAO4o3/1c6D69L2sraO2yWHtrsvrr1Og=";
+    #cargoLock.lockFile = ./Cargo.lock;
+    
+    meta = with prev.lib; {
+      description = "A tool for elegant mathematics";
+      homepage = "https://github.com/Rogue-King/sage";
+      license = licenses.mit;
+      platforms = [ "x86_64-linux" "aarch64-linux" "x86_64-darwin" "aarch64-darwin" ];
+      maintainers = with maintainers; [ ];
+    };
+  };
+}
diff --git a/home-manager/programs/ghostty/ghostty.nix b/home-manager/programs/ghostty/ghostty.nix
index f80ce71..d5e02fe 100644
--- a/home-manager/programs/ghostty/ghostty.nix
+++ b/home-manager/programs/ghostty/ghostty.nix
@@ -34,6 +34,7 @@
       cursor-invert-fg-bg = true;
 
       keybind = [
+        "global:cmd+grave_accent=toggle_quick_terminal"
         "super+shift+k=new_split:down"
         "super+shift+l=new_split:right"
         "super+shift+x=close_window"
diff --git a/home-manager/programs/programs.nix b/home-manager/programs/programs.nix
index b0ba7d3..4e8c963 100644
--- a/home-manager/programs/programs.nix
+++ b/home-manager/programs/programs.nix
@@ -42,6 +42,7 @@
     prismlauncher
     protonplus
     protonup-qt
+    putty
     pwninit
     pwntools
     qFlipper
diff --git a/hosts/eva-02/configuration.nix b/hosts/eva-02/configuration.nix
index 1036593..7ff32c6 100644
--- a/hosts/eva-02/configuration.nix
+++ b/hosts/eva-02/configuration.nix
@@ -71,8 +71,12 @@
 
   homebrew = {
     enable = true;
-    onActivation.autoUpdate = true;
+    user = "rogueking";
+    #onActivation.autoUpdate = true;
     brews = [
+      "docker"
+      "esptool"
+      "huggingface-cli"
       "putty"
     ];
     casks = [
@@ -80,7 +84,6 @@
       "1password-cli"
       "blender"
       "brave-browser"
-      "docker"
       "ghostty"
       "imhex"
       "jellyfin-media-player"