initial commit

modules/home/librewolf/search/default.nix

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+{
+  config,
+  lib,
+  pkgs,
+  ...
+}:
+
+let
+  cfg = config.programs.librewolf;
+  engines = import ./engines.nix pkgs;
+
+  urlRegex = "^(http|https|ftp)://";
+  isUrl = s: (match urlRegex s) != null;
+
+  transformEngine =
+    engine:
+    let
+      every_day = 24 * 60 * 60 * 1000;
+    in
+    {
+      urls = [ { template = engine.url; } ];
+      icon = engine.icon;
+      updateInterval = if (isUrl engine.icon) then every_day else null;
+      definedAliases = optional (engine ? alias) engine.alias;
+    };
+
+  transformedEngines = mapAttrs' (name: engine: {
+    name = name;
+    value = transformEngine engine;
+  }) engines;
+
+  inherit (lib)
+    listToAttrs
+    mapAttrs
+    mapAttrs'
+    mkOption
+    optional
+    types
+    ;
+  inherit (lib.strings) match;
+in
+{
+  options.programs.librewolf = {
+    searchEngines = mkOption {
+      type = types.listOf types.str;
+      default = [
+        "github"
+        "home-manager-options"
+        "nixos-options"
+        "nixos-wiki"
+        "nixpkgs"
+        "nixpkgs-issues"
+        "noogle"
+        "nuschtos"
+        "wikiless"
+        "youtube"
+      ];
+      example = [
+        "github"
+        "home-manager-options"
+        "howlongtobeat"
+        "keyforsteam"
+        "nixos-options"
+        "nixos-wiki"
+        "nixpkgs"
+        "nixpkgs-issues"
+        "noogle"
+        "nuschtos"
+        "protondb"
+        "steamdb"
+        "wikiless"
+        "youtube"
+      ];
+      description = "Additional search engines for LibreWolf.";
+    };
+  };
+
+  config.programs.librewolf = {
+    profiles.default.search.engines = mapAttrs (_: name: transformedEngines.${name}) (
+      listToAttrs (
+        map (name: {
+          name = name;
+          value = name;
+        }) cfg.searchEngines
+      )
+    );
+  };
+}

modules/home/librewolf/search/engines.nix

@@ -0,0 +1,87 @@
+pkgs:
+
+{
+  github = {
+    url = "https://github.com/search?q={searchTerms}";
+    icon = "https://github.com/favicon.ico";
+    alias = "@gh";
+  };
+
+  home-manager-options = {
+    url = "https://home-manager-options.extranix.com/?query={searchTerms}&release=release-25.11";
+    icon = "${pkgs.nixos-icons}/share/icons/hicolor/scalable/apps/nix-snowflake.svg";
+    alias = "@hm";
+  };
+
+  nixpkgs = {
+    url = "https://search.nixos.org/packages?channel=25.11&query={searchTerms}";
+    icon = "${pkgs.nixos-icons}/share/icons/hicolor/scalable/apps/nix-snowflake.svg";
+    alias = "@np";
+  };
+
+  nixos-options = {
+    url = "https://search.nixos.org/options?channel=25.11&query={searchTerms}";
+    icon = "${pkgs.nixos-icons}/share/icons/hicolor/scalable/apps/nix-snowflake.svg";
+    alias = "@no";
+  };
+
+  nixos-wiki = {
+    url = "https://wiki.nixos.org/w/index.php?search={searchTerms}";
+    icon = "https://wiki.nixos.org/favicon.png";
+    alias = "@nw";
+  };
+
+  noogle = {
+    url = "https://noogle.dev/q?term={searchTerms}";
+    icon = "${pkgs.nixos-icons}/share/icons/hicolor/scalable/apps/nix-snowflake.svg";
+    alias = "@nf";
+  };
+
+  nuschtos = {
+    url = "https://search.xn--nschtos-n2a.de/?query={searchTerms}";
+    icon = "${pkgs.nixos-icons}/share/icons/hicolor/scalable/apps/nix-snowflake.svg";
+    alias = "@nu";
+  };
+
+  nixpkgs-issues = {
+    url = "https://github.com/NixOS/nixpkgs/issues?q=is%3Aissue%20state%3Aopen%20{searchTerms}";
+    icon = "${pkgs.nixos-icons}/share/icons/hicolor/scalable/apps/nix-snowflake.svg";
+    alias = "@ni";
+  };
+
+  wikiless = {
+    url = "https://wikiless.metastem.su/wiki/{searchTerms}";
+    icon = "https://wikiless.metastem.su/wikiless-favicon.ico";
+    alias = "@wiki";
+  };
+
+  youtube = {
+    url = "https://www.youtube.com/results?search_query={searchTerms}";
+    icon = "https://www.youtube.com/favicon.ico";
+    alias = "@yt";
+  };
+
+  protondb = {
+    url = "https://www.protondb.com/search?q={searchTerms}";
+    icon = "https://www.protondb.com/favicon.ico";
+    alias = "@pdb";
+  };
+
+  steamdb = {
+    url = "https://steamdb.info/search/?a=all&q={searchTerms}";
+    icon = "https://steamdb.info/favicon.ico";
+    alias = "@stdb";
+  };
+
+  keyforsteam = {
+    url = "https://www.keyforsteam.de/katalog/?search_name={searchTerms}";
+    icon = "https://www.keyforsteam.de/favicon.ico";
+    alias = "@k4s";
+  };
+
+  howlongtobeat = {
+    url = "https://howlongtobeat.com/?q={searchTerms}";
+    icon = "https://howlongtobeat.com/favicon.ico";
+    alias = "@hltb";
+  };
+}