diff --git a/flake.lock b/flake.lock
index 70da8cb..c21e78d 100644
--- a/flake.lock
+++ b/flake.lock
@@ -494,11 +494,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1784776947,
-        "narHash": "sha256-IGVn6Z7dfeArObZvz7cLsGqJD8ipP2VkAZC/bOJgvJI=",
+        "lastModified": 1784937824,
+        "narHash": "sha256-ncagIdsvmlcJ2DeFHU6R2wBZoOJFDPGVlsmYU8DfImg=",
         "ref": "refs/heads/main",
-        "rev": "1caf18d72dd7cad7304401da0db6a6ba853d8827",
-        "revCount": 5,
+        "rev": "8c17f3aeb8a9c9d95a1427018a93f7d2cf081238",
+        "revCount": 15,
         "type": "git",
         "url": "https://git.alexion.dev/alexion/skills"
       },
diff --git a/hosts/neogaia/default.nix b/hosts/neogaia/default.nix
index 568d01a..d7cc9c4 100644
--- a/hosts/neogaia/default.nix
+++ b/hosts/neogaia/default.nix
@@ -55,6 +55,7 @@
   modules.agents.pi.enable = true;
 
   modules.desktop.enable = true;
+  modules.desktop.obsidian.enable = true;
 
   time.timeZone = "America/New_York";
   i18n.defaultLocale = "en_GB.UTF-8";
diff --git a/modules/agents/skills.nix b/modules/agents/skills.nix
index ad50170..108e080 100644
--- a/modules/agents/skills.nix
+++ b/modules/agents/skills.nix
@@ -1,11 +1,20 @@
-{ config, inputs, ... }:
+{
+  config,
+  inputs,
+  pkgs,
+  ...
+}:
 # Global agent skills, placed under the skills directory so they are active in
 # every project.
 let
   user = config.user.name;
 
   # The skills installed globally, as derivations from the skills flake.
-  skills = [ ];
+  # wiki reads the personal Obsidian vault, and consume mines a source into it.
+  skills = with inputs.skills.packages.${pkgs.stdenv.hostPlatform.system}; [
+    wiki
+    consume
+  ];
 in
 {
   home-manager.sharedModules = [ inputs.skills.homeModules.default ];
diff --git a/modules/desktop/hyprland/hyprland.nix b/modules/desktop/hyprland/hyprland.nix
index f616c8d..6709262 100644
--- a/modules/desktop/hyprland/hyprland.nix
+++ b/modules/desktop/hyprland/hyprland.nix
@@ -63,19 +63,26 @@ in
         "$mod" = "SUPER";
         "$terminal" = "alacritty";
 
-        # Hand the cursor theme to the compositor directly.
-        # UWSM launches the session without the shell profile that carries the
-        # pointer-cursor variables, so without this Hyprland never sees a theme
-        # and falls back to its built-in cursor.
-        # Bibata ships XCursor only.
-        # The hyprcursor variables name the same theme, which Hyprland resolves
-        # through its XCursor fallback.
-        env = lib.optionals (cursor != null) [
-          "XCURSOR_THEME,${cursor.name}"
-          "XCURSOR_SIZE,${toString cursor.size}"
-          "HYPRCURSOR_THEME,${cursor.name}"
-          "HYPRCURSOR_SIZE,${toString cursor.size}"
-        ];
+        # Session variables handed to the compositor directly.
+        # UWSM launches the session without the shell profile that would carry
+        # them, so a variable the compositor or its children must see is set
+        # here rather than through home-manager's sessionVariables.
+        env =
+          [
+            # Chromium and Electron apps read this to select native Wayland;
+            # nixpkgs wrappers (Obsidian's included) gate their Wayland flags on
+            # it, so without it they run under XWayland and blur at this DPI.
+            "NIXOS_OZONE_WL,1"
+          ]
+          # Bibata ships XCursor only.
+          # The hyprcursor variables name the same theme, which Hyprland
+          # resolves through its XCursor fallback.
+          ++ lib.optionals (cursor != null) [
+            "XCURSOR_THEME,${cursor.name}"
+            "XCURSOR_SIZE,${toString cursor.size}"
+            "HYPRCURSOR_THEME,${cursor.name}"
+            "HYPRCURSOR_SIZE,${toString cursor.size}"
+          ];
 
         input = {
           kb_layout = "us";
diff --git a/modules/desktop/obsidian.nix b/modules/desktop/obsidian.nix
new file mode 100644
index 0000000..90fdd52
--- /dev/null
+++ b/modules/desktop/obsidian.nix
@@ -0,0 +1,18 @@
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}:
+# Obsidian as the desktop note-taking vault.
+let
+  cfg = config.modules.desktop.obsidian;
+  user = config.user.name;
+in
+{
+  options.modules.desktop.obsidian.enable = lib.mkEnableOption "Obsidian as the desktop note-taking vault";
+
+  config = lib.mkIf cfg.enable {
+    home-manager.users.${user}.home.packages = [ pkgs.obsidian ];
+  };
+}
diff --git a/modules/desktop/waybar.nix b/modules/desktop/waybar.nix
index fc29cf1..7a63306 100644
--- a/modules/desktop/waybar.nix
+++ b/modules/desktop/waybar.nix
@@ -82,6 +82,7 @@ in
             "class<.*[Ff]irefox.*>" = g "f269";
             "class<chromium.*>" = g "f268";
             "class<[Cc]ode>" = g "f121";
+            "class<obsidian>" = g "f02d";
           };
         };