feat(nix): add obsidian module

home/modules/app/default.nix

@@ -1,5 +1,5 @@
 { ... }:
 
 {
-  imports = [ ./ghostty ./alacritty.nix ./discord.nix ./firefox.nix ./kitty.nix ./obs.nix ./wezterm.nix ];
+  imports = [ ./ghostty ./alacritty.nix ./discord.nix ./firefox.nix ./kitty.nix ./obs.nix ./obsidian.nix ./wezterm.nix ];
 }

home/modules/app/obsidian.nix

@@ -0,0 +1,23 @@
+{ config, lib, pkgs, ... }:
+
+with lib;
+let
+  cfg = config.nyx.modules.app.obsidian;
+  obsidian = lib.throwIf (lib.versionOlder "1.4.16" pkgs.obsidian.version) "Obsidian no longer requires EOL Electron" (
+    pkgs.obsidian.override {
+      electron = pkgs.electron_25.overrideAttrs (_: {
+        preFixup = "patchelf --add-needed ${pkgs.libglvnd}/lib/libEGL.so.1 $out/bin/electron"; # NixOS/nixpkgs#272912
+        meta.knownVulnerabilities = [ ]; # NixOS/nixpkgs#273611
+      });
+    }
+  );
+in
+{
+  options.nyx.modules.app.obsidian = {
+    enable = mkEnableOption "Note taking application";
+  };
+
+  config = mkIf cfg.enable {
+    home.packages = [ obsidian ];
+  };
+}

system/nixos/hosts/wrath/home.nix

@@ -12,6 +12,7 @@
       app = {
         alacritty.fontSize = 8;
         ghostty.enable = true;
+        obsidian.enable = true;
         wezterm.fontSize = 12;
         obs.enable = true;
       };