terminal/programs: add nix-index with comma

flake.lock

@@ -601,6 +601,26 @@
         "type": "github"
       }
     },
+    "nix-index-db": {
+      "inputs": {
+        "nixpkgs": [
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1729394935,
+        "narHash": "sha256-2ntUG+NJKdfhlrh/tF+jOU0fOesO7lm5ZZVSYitsvH8=",
+        "owner": "nix-community",
+        "repo": "nix-index-database",
+        "rev": "04f8a11f247ba00263b060fbcdc95484fd046104",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-community",
+        "repo": "nix-index-database",
+        "type": "github"
+      }
+    },
     "nixos-hardware": {
       "locked": {
         "lastModified": 1729509737,
@@ -2650,6 +2670,7 @@
         "home-manager": "home-manager_2",
         "lanzaboote": "lanzaboote",
         "niri": "niri",
+        "nix-index-db": "nix-index-db",
         "nixos-hardware": "nixos-hardware",
         "nixpkgs": "nixpkgs_5",
         "nvf": "nvf",

flake.nix

@@ -52,6 +52,10 @@
       url = "github:nix-community/lanzaboote/v0.4.1";
       inputs.nixpkgs.follows = "nixpkgs";
     };
+    nix-index-db = {
+      url = "github:nix-community/nix-index-database";
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
     treefmt-nix.url = "github:numtide/treefmt-nix";
     nixos-hardware.url = "github:NixOS/nixos-hardware";
   };

home/terminal/programs/default.nix

@@ -5,6 +5,7 @@
     ./tmux.nix
     ./direnv.nix
     ./zellij.nix
+    ./nix-index.nix
   ];
 
   home.packages = with pkgs; [

home/terminal/programs/nix-index.nix

@@ -0,0 +1,11 @@
+{inputs, ...}: {
+  imports = [inputs.nix-index-db.hmModules.nix-index];
+  programs = {
+    nix-index = {
+      enable = true;
+      symlinkToCacheHome = true; # needed for comma
+    };
+    command-not-found.enable = false;
+    nix-index-database.comma.enable = true;
+  };
+}