Add Jan UI and selective Flatpak options

- Expose Jan as a core package and add a Hyprland shortcut (Mod + J). -
Refactor Flatpak module to provide per‑package enable options; default
package list is now empty. - Update librewolf search template to use a
single‑parameter URL. - Minor comment formatting changes across host
module files.

modules/core/flatpak.nix

@@ -2,16 +2,27 @@
   lib,
   config,
   ...
-}: {
+}: let
+  mkFlatpakPackage = name: pkgId: {
+    options.flatpak.packages.${name} = lib.mkEnableOption "Flatpak: ${name}";
+
+    config.services.flatpak.packages =
+      lib.mkIf config.flatpak.packages.${name} [pkgId];
+  };
+
+  flatpakPackages = {
+    sober = "org.vinegarhq.Sober";
+    warehouse = "io.github.flattool.Warehouse";
+    flatseal = "com.github.tchx84.Flatseal";
+  };
+in {
   options.flatpak.enable = lib.mkEnableOption "Flatpak";
 
   config.services.flatpak = lib.mkIf config.flatpak.enable {
     enable = true;
     update.onActivation = true;
-    packages = [
-      # "org.vinegarhq.Sober"
-      "io.github.flattool.Warehouse"
-      "com.github.tchx84.Flatseal"
-    ];
+    packages = [];
   };
+
+  imports = builtins.attrValues (builtins.mapAttrs mkFlatpakPackage flatpakPackages);
 }

modules/core/packages/packages.nix

@@ -25,6 +25,7 @@
     tutanota = tutanota-desktop;
     exercism = exercism;
     opencode = opencode;
+    jan = jan;
     lazygit = lazygit;
     prismlauncher = inputs.prismlauncher-cracked.packages.${system}.default;
     spaceCadetPinball = space-cadet-pinball;

modules/home/hyprland/binds.nix

@@ -17,6 +17,7 @@ in {
       "$modifier, D, exec, vesktop"
       "$modifier, G, exec, affinity-v3"
       "$modifier, I, exec, iotas"
+      "$modifier, J, exec, Jan"
       "$modifier, L, exec, logseq"
       "$modifier, M, exec, plexamp"
       "$modifier, N, exec, dex ${desktopEntriesPath}/garandcloud.desktop"

modules/home/librewolf/profiles/search.nix

@@ -75,13 +75,7 @@
         icon = "${pkgs.nixos-icons}/share/icons/hicolor/scalable/apps/nix-snowflake.svg";
         urls = [
           {
-            template = "https://search.nixos.org/options";
-            params = [
-              {
-                name = "query";
-                value = "{searchTerms}";
-              }
-            ];
+            template = "https://search.nixos.org/options?channel=unstable&query={searchTerms}";
           }
         ];
       };