fix: use mandoc to work man-db/groff performance regression

Related to nixpkgs #513348

flake.lock

@@ -283,11 +283,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1777518431,
-        "narHash": "sha256-SwgiG2T5pbyo33Vz7/vUCAhEMgwCK8Pa2nDSx5a6/WE=",
+        "lastModified": 1777985523,
+        "narHash": "sha256-EpCQ/5AnnQABMeZpxXKt/Z+tUAI7k8c1DNR8/tWW8Do=",
         "owner": "nix-community",
         "repo": "home-manager",
-        "rev": "2e54a938cdd4c8e414b2518edc3d82308027c670",
+        "rev": "5a15505146ffd149dd88126562209028220c93e3",
         "type": "github"
       },
       "original": {

home/gabriel/features/cli/default.nix

@@ -17,6 +17,7 @@
     ./xpo.nix
     ./fzf.nix
     ./jira.nix
+    ./mandoc.nix
   ];
   home.packages = with pkgs; [
     comma # Install and run programs by sticking a , before them

home/gabriel/features/cli/mandoc.nix

@@ -0,0 +1,7 @@
+{
+  programs.man = {
+    # Performance regression. See https://github.com/NixOS/nixpkgs/issues/513348
+    man-db.enable = false;
+    mandoc.enable = true;
+  };
+}

hosts/common/global/default.nix

@@ -27,6 +27,7 @@
       ./kdeconnect.nix
       ./upower.nix
       ./display-manager.nix
+      ./mandoc.nix
     ]
     ++ (builtins.attrValues outputs.nixosModules);
 

hosts/common/global/mandoc.nix

@@ -0,0 +1,7 @@
+{
+  documentation.man = {
+    # Performance regression. See https://github.com/NixOS/nixpkgs/issues/513348
+    man-db.enable = false;
+    mandoc.enable = true;
+  };
+}