154 files changed, 1812 insertions, 1208 deletions

diff --git a/darwinConfigurations/default.nix b/darwinConfigurations/default.nix
new file mode 100644
index 0000000..612c8b0
--- /dev/null
+++ b/darwinConfigurations/default.nix
@@ -0,0 +1,35 @@
+{
+  inputs,
+  lib,
+}:
+with lib; let
+  mkConfiguration = name: {
+    modules ? [],
+    configuration ? ./${name},
+    this ? my.configurations.${name},
+    extraSpecialArgs ? {
+      localUsername = my.username;
+      localHostname = this.hostname;
+    },
+  }:
+    nameValuePair name (inputs.darwin.lib.darwinSystem {
+      inherit (this) system;
+      modules =
+        modules
+        ++ attrValues inputs.self.modules
+        ++ attrValues inputs.self.darwinModules
+        ++ optional (configuration != null) (import configuration);
+      specialArgs =
+        {
+          inherit inputs lib this;
+        }
+        // extraSpecialArgs;
+    });
+in
+  mapAttrs' mkConfiguration {
+    mairon.extraSpecialArgs = {
+      # These values are managed by my employer.
+      localUsername = "username";
+      localHostname = "hostname";
+    };
+  }
diff --git a/darwinConfigurations/mairon/default.nix b/darwinConfigurations/mairon/default.nix
new file mode 100644
index 0000000..d574a08
--- /dev/null
+++ b/darwinConfigurations/mairon/default.nix
@@ -0,0 +1,22 @@
+{
+  config,
+  lib,
+  this,
+  ...
+}:
+with lib; {
+  nixfiles.modules.vscode.enable = true;
+
+  # TODO Make this per-directory/per-remote.
+  hm.programs.git = {
+    userName = mkForce "Firstname Lastname";
+    userEmail = mkForce "username@work.com";
+    signing.key = mkForce "@PGP_KEY@";
+    extraConfig."url \"git@gitlab.services.work.com:\"".insteadOf = "work:";
+  };
+
+  networking = {
+    computerName = mkForce this.hostname;
+    hostName = mkForce null;
+  };
+}
diff --git a/flake.lock b/flake.lock
index 085d35e..6d8862f 100644
--- a/flake.lock
+++ b/flake.lock
@@ -88,16 +88,50 @@
     "105.0": {
       "flake": false,
       "locked": {
-        "lastModified": 1664804773,
-        "narHash": "sha256-cktQJuMbGINAAfSrpln8OxisuyN/o8sPxon0lZ4vM7c=",
+        "lastModified": 1664904885,
+        "narHash": "sha256-XUjX+Tno3EU/3IXR/WCn4M5gVR+sKjCzpKcV31dqzWA=",
         "owner": "arkenfox",
         "repo": "user.js",
-        "rev": "11e3c1b8f6676b45b2b35c0b624d15746c70c593",
+        "rev": "db04bc44f2982ae8e39f10d056bc7cfe7804d4fd",
         "type": "github"
       },
       "original": {
         "owner": "arkenfox",
-        "ref": "refs/pull/1541/head",
+        "ref": "105.0",
+        "repo": "user.js",
+        "type": "github"
+      }
+    },
+    "106.0": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1667741320,
+        "narHash": "sha256-WB9w/UoFqp/WyRhe87dNqwbMAXa8lmsK/QCeTzRWmj8=",
+        "owner": "arkenfox",
+        "repo": "user.js",
+        "rev": "8a65c5a7bad0ec764d968b0941ebdf01bdcd2408",
+        "type": "github"
+      },
+      "original": {
+        "owner": "arkenfox",
+        "ref": "106.0",
+        "repo": "user.js",
+        "type": "github"
+      }
+    },
+    "107.0": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1668912908,
+        "narHash": "sha256-LeSJvxkTU4491rmkznbIm3l/ZiC+876OsLfej2Aj4Ro=",
+        "owner": "arkenfox",
+        "repo": "user.js",
+        "rev": "e8ea7f3f23b9a7f257b61ad7553b4b64b3965ddc",
+        "type": "github"
+      },
+      "original": {
+        "owner": "arkenfox",
+        "ref": "refs/pull/1579/head",
         "repo": "user.js",
         "type": "github"
       }
@@ -250,6 +284,8 @@
         "103.0": "103.0",
         "104.0": "104.0",
         "105.0": "105.0",
+        "106.0": "106.0",
+        "107.0": "107.0",
         "93.0": "93.0",
         "94.0": "94.0",
         "95.0": "95.0",
@@ -263,11 +299,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1665906177,
-        "narHash": "sha256-fAPdYYF8AJtczGXFFTwMD8UxECRxPrR+VtHrUZgvxns=",
+        "lastModified": 1671049694,
+        "narHash": "sha256-APJajoa7Q4i8LFOHoiyU3G5nJ3Xv2IiI2qY9i0pJnlw=",
         "owner": "dwarfmaster",
         "repo": "arkenfox-nixos",
-        "rev": "83776435c05002a13c9b9f0536cc2041158798a8",
+        "rev": "99028aef3e9dfa3dc44e51e0d7296cf93d910af8",
         "type": "github"
       },
       "original": {
@@ -310,6 +346,27 @@
         "type": "gitlab"
       }
     },
+    "darwin": {
+      "inputs": {
+        "nixpkgs": [
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1671196037,
+        "narHash": "sha256-2+J98SeczFWonbqFLMEAQC7vZEe6I2gM17XYvEmG52I=",
+        "owner": "LnL7",
+        "repo": "nix-darwin",
+        "rev": "adb8ac0453c8b2c40f5bffb578453dbaee838952",
+        "type": "github"
+      },
+      "original": {
+        "owner": "LnL7",
+        "ref": "master",
+        "repo": "nix-darwin",
+        "type": "github"
+      }
+    },
     "dns-nix": {
       "inputs": {
         "flake-utils": [
@@ -377,11 +434,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1668836187,
-        "narHash": "sha256-f38CYfIwYoSUgX2klCm+6v4ViZiVY6DdwdO/rk7GGwg=",
+        "lastModified": 1671268121,
+        "narHash": "sha256-LIOLFw5m2mYDjMo7eBB/cxYjhEqBnvQ8dpZvTjR6+Lo=",
         "owner": "nix-community",
         "repo": "emacs-overlay",
-        "rev": "faf39a31bc76f1cd4eb642d79eeab1d25b038e72",
+        "rev": "249d14bdd55995eea2e0c9cfed8a230525faebde",
         "type": "github"
       },
       "original": {
@@ -499,6 +556,7 @@
       },
       "original": {
         "owner": "edolstra",
+        "ref": "master",
         "repo": "flake-compat",
         "type": "github"
       }
@@ -553,6 +611,27 @@
         "type": "github"
       }
     },
+    "gitignore": {
+      "inputs": {
+        "nixpkgs": [
+          "pre-commit-hooks",
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1660459072,
+        "narHash": "sha256-8DFJjXG8zqoONA1vXtgeKXy68KdJL5UaXR8NtVMUbx8=",
+        "owner": "hercules-ci",
+        "repo": "gitignore.nix",
+        "rev": "a20de23b925fd8264fd7fad6454652e142fd7f73",
+        "type": "github"
+      },
+      "original": {
+        "owner": "hercules-ci",
+        "repo": "gitignore.nix",
+        "type": "github"
+      }
+    },
     "home-manager": {
       "inputs": {
         "nixpkgs": [
@@ -563,11 +642,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1668788863,
-        "narHash": "sha256-FsdUG+YkRX7JZKZm6T44J2h+0pXB1sWA9AobyiozFK0=",
+        "lastModified": 1671209729,
+        "narHash": "sha256-zxn1eA/rMi2DOx43V7q87bGaDzvL7CMVY/Ti7lJ92DQ=",
         "owner": "nix-community",
         "repo": "home-manager",
-        "rev": "948d1f8a5cef55a281d4f5d17f3b79df6c82fce1",
+        "rev": "7d55a72d4c1df694e87a41a7e6c9a7b6e9a40ca3",
         "type": "github"
       },
       "original": {
@@ -580,11 +659,11 @@
     "master": {
       "flake": false,
       "locked": {
-        "lastModified": 1665257885,
-        "narHash": "sha256-4PNnCRLomAd5OdN4UEbsVSm8eNuteZHKaUqRVvIBvN8=",
+        "lastModified": 1670682948,
+        "narHash": "sha256-yFg8U4D+qD9UQXhpAXrl9Ksj16zrCLOgahMtT9QS2Y8=",
         "owner": "arkenfox",
         "repo": "user.js",
-        "rev": "f4187632faef76df4de0cbb0cdc7199f22fadd76",
+        "rev": "7135907b2fe13fa55eb8ebf162603037f83e353c",
         "type": "github"
       },
       "original": {
@@ -606,7 +685,9 @@
         "evil-org-mode": "evil-org-mode",
         "evil-quick-diff": "evil-quick-diff",
         "explain-pause-mode": "explain-pause-mode",
-        "flake-compat": "flake-compat",
+        "flake-compat": [
+          "flake-compat"
+        ],
         "flake-utils": [
           "flake-utils"
         ],
@@ -628,11 +709,11 @@
         "ws-butler": "ws-butler"
       },
       "locked": {
-        "lastModified": 1668736610,
-        "narHash": "sha256-qqQ/YspdN7c8o24CZQfvtuCC8I0AzCAwTpDRCdWdgJo=",
+        "lastModified": 1671154105,
+        "narHash": "sha256-OI6M2/Kcd1bJuodxV6rV5KtDJMUeewsqKy1B2PLNVys=",
         "owner": "nix-community",
         "repo": "nix-doom-emacs",
-        "rev": "6a37d61c1d8c8586b1140f53b83c164dd2fd7d2d",
+        "rev": "2150fd40b2110bbd11dcb62fa5f307ec345b0fb0",
         "type": "github"
       },
       "original": {
@@ -660,11 +741,11 @@
     },
     "nixos-hardware": {
       "locked": {
-        "lastModified": 1668334946,
-        "narHash": "sha256-omMbUj4r5DVBWh7KxkoO/Z/1V1shVR6Ls4jXNB4mr3U=",
+        "lastModified": 1671228065,
+        "narHash": "sha256-Az/ig9LVL5xdqtyl4/CVKJIH1G7sP/9Ott2XnNyie0E=",
         "owner": "NixOS",
         "repo": "nixos-hardware",
-        "rev": "e0452b33ab0ef16ffe075e980644ed92a6a200bb",
+        "rev": "e462a4baf75eeac639b4942481759de08a3bc94e",
         "type": "github"
       },
       "original": {
@@ -676,11 +757,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1668820343,
-        "narHash": "sha256-CmV7D8XFVhd47FIQx0RvjYP620hWsaG+71Rmmq8Bn/E=",
+        "lastModified": 1671249438,
+        "narHash": "sha256-5e+CcnbZA3/i2BRXbnzRS52Ly67MUNdZR+Zpbb2C65k=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "75f569b1a573c9736501981b1bd1808d30b37d3d",
+        "rev": "067bfc6c90a301572cec7da48f09c447a9a8eae0",
         "type": "github"
       },
       "original": {
@@ -692,11 +773,11 @@
     },
     "nixpkgs-master": {
       "locked": {
-        "lastModified": 1668852341,
-        "narHash": "sha256-p2NNuwH3dkv8ze+ZPqZFWGmr2ULm/1lEnKVY4ojEewo=",
+        "lastModified": 1671282610,
+        "narHash": "sha256-B8qHrJjsu2rv2BPlj7EkM0H+ZJvVucaiCOIp5191+xc=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "edff760d6125ddf35ea1dcbf03846addc6f900ce",
+        "rev": "b43f29bdc27e3f14ba0416a2a8492a3f35e6cd58",
         "type": "github"
       },
       "original": {
@@ -708,16 +789,16 @@
     },
     "nixpkgs-stable": {
       "locked": {
-        "lastModified": 1668766498,
-        "narHash": "sha256-UjZlIrbHGlL3H3HZNPTxPSwJfr49jIfbPWCYxk0EQm4=",
+        "lastModified": 1671282711,
+        "narHash": "sha256-DJknmGMZPIMlJnLqP99A+dZiWOirRVeCZrQK8kn1nug=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "f42a45c015f28ac3beeb0df360e50cdbf495d44b",
+        "rev": "8ac4d14fc64c39707e98421e84ed6a7160c06ecd",
         "type": "github"
       },
       "original": {
         "owner": "NixOS",
-        "ref": "release-22.05",
+        "ref": "release-22.11",
         "repo": "nixpkgs",
         "type": "github"
       }
@@ -725,11 +806,11 @@
     "nmap-vulners": {
       "flake": false,
       "locked": {
-        "lastModified": 1632035522,
-        "narHash": "sha256-Y3THM8cNVZdl4GVLI0d4c/EgAyBZeNLSlDsUMHD9UYk=",
+        "lastModified": 1671189750,
+        "narHash": "sha256-WUAAWmwiW0uSTGdBE1rxrbSSWBRhzAMrtcyP4mmwkQ8=",
         "owner": "vulnersCom",
         "repo": "nmap-vulners",
-        "rev": "bbf53dd085f8d810921ee00ccf85bdb329d59514",
+        "rev": "4899a73532f2d166ba229f6c1e8a4046023623da",
         "type": "github"
       },
       "original": {
@@ -774,11 +855,11 @@
     },
     "nur": {
       "locked": {
-        "lastModified": 1668851908,
-        "narHash": "sha256-Br1NBRNqZtUYKSP7qhzyUlKDOuWOpl2sVsbxgamL4uM=",
+        "lastModified": 1671251299,
+        "narHash": "sha256-QFslNMb6xQdgEoHmbZ+YjyXysCPsiU2dOPpjWp68dYg=",
         "owner": "nix-community",
         "repo": "NUR",
-        "rev": "06c146dad321018b42c92fea1e0b100c989d9b8f",
+        "rev": "ca8e5a3c87bd533b1c0b0b4195b1191ad23c1c66",
         "type": "github"
       },
       "original": {
@@ -807,11 +888,11 @@
     "org": {
       "flake": false,
       "locked": {
-        "lastModified": 1668143941,
-        "narHash": "sha256-f7nwVd1usk2Zhn9szqdhtU7/czXRl9w2NTQtGpIlugc=",
+        "lastModified": 1670680538,
+        "narHash": "sha256-afmN2tOY6Par235bVsqhtFHOSVyw4NBgTxI5Eo6Yk5A=",
         "owner": "emacs-straight",
         "repo": "org-mode",
-        "rev": "f83e45526b5ec4627d601673be3680e2dece1b33",
+        "rev": "42153ea2fec66f90c1623be25d6774d96ecf8062",
         "type": "github"
       },
       "original": {
@@ -870,19 +951,26 @@
     },
     "pre-commit-hooks": {
       "inputs": {
+        "flake-compat": [
+          "flake-compat"
+        ],
         "flake-utils": [
           "flake-utils"
         ],
+        "gitignore": "gitignore",
         "nixpkgs": [
           "nixpkgs"
+        ],
+        "nixpkgs-stable": [
+          "nixpkgs-stable"
         ]
       },
       "locked": {
-        "lastModified": 1667992213,
-        "narHash": "sha256-8Ens8ozllvlaFMCZBxg6S7oUyynYx2v7yleC5M0jJsE=",
+        "lastModified": 1671180323,
+        "narHash": "sha256-qAE390OdYvzSMe58HLpoMZ7llPlp+zIy84pXPnuXqCo=",
         "owner": "cachix",
         "repo": "pre-commit-hooks.nix",
-        "rev": "ebcbfe09d2bd6d15f68de3a0ebb1e4dcb5cd324b",
+        "rev": "a49fc91a606dbbb7a916c56bc09776fc67b5c121",
         "type": "github"
       },
       "original": {
@@ -895,11 +983,11 @@
     "revealjs": {
       "flake": false,
       "locked": {
-        "lastModified": 1668674340,
-        "narHash": "sha256-JEXPS67bgKnnRdA37mC18PyGm4EWVQ/BrWeBZLVKPvU=",
+        "lastModified": 1670408834,
+        "narHash": "sha256-2LG8/AwMC+caNK9DKDyVGw+EPT2W6ys177xQj7mdKng=",
         "owner": "hakimel",
         "repo": "reveal.js",
-        "rev": "9f1f7789bfbf689d9c1615e523d5c6262771e90f",
+        "rev": "4fe3946cb43de57f79aaa7b646aee7e78f4bcc75",
         "type": "github"
       },
       "original": {
@@ -913,8 +1001,10 @@
         "agenix": "agenix",
         "arkenfox-nixos": "arkenfox-nixos",
         "azahi-cc": "azahi-cc",
+        "darwin": "darwin",
         "dns-nix": "dns-nix",
         "emacs-overlay": "emacs-overlay",
+        "flake-compat": "flake-compat",
         "flake-registry": "flake-registry",
         "flake-utils": "flake-utils",
         "home-manager": "home-manager",
@@ -961,11 +1051,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1658267644,
-        "narHash": "sha256-NJRe1rnlF112eZwxNASlRL8/ghwD8g+lpHIYRkWQxC8=",
+        "lastModified": 1669807829,
+        "narHash": "sha256-rgQ8MYV1UD4Ynw0wzfl9hatgsV5GV7X6eM6ioSPKzls=",
         "owner": "simple-nixos-mailserver",
         "repo": "nixos-mailserver",
-        "rev": "004c229ca44c069d93c92abf67ff1619fb508c6a",
+        "rev": "694e7d34f60028f4877517e1c7c73c9527fad400",
         "type": "gitlab"
       },
       "original": {
@@ -994,11 +1084,11 @@
     "ts-fold": {
       "flake": false,
       "locked": {
-        "lastModified": 1663136308,
-        "narHash": "sha256-FI25RLoHqhcjA2qel75LVmQH4rTkKiAUR2w9QODT1XM=",
+        "lastModified": 1670681486,
+        "narHash": "sha256-Ss1FWOq51+0FQpQWXPiSWHmNYU6NurUvI2wAjOGV/kA=",
         "owner": "jcs-elpa",
         "repo": "ts-fold",
-        "rev": "c3da5520b988720f7f6e9e5e11b60746598112e0",
+        "rev": "85db0117ead108213cc2a4210f72746d8ad8d20a",
         "type": "github"
       },
       "original": {
diff --git a/flake.nix b/flake.nix
index 7fcd818..46d1252 100644
--- a/flake.nix
+++ b/flake.nix
@@ -24,7 +24,7 @@
       type = "github";
       owner = "NixOS";
       repo = "nixpkgs";
-      ref = "release-22.05";
+      ref = "release-22.11";
     };
 
     # For testing PRs and stuff.
@@ -47,6 +47,14 @@
       ref = "master";
     };
 
+    darwin = {
+      type = "github";
+      owner = "LnL7";
+      repo = "nix-darwin";
+      ref = "master";
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
+
     home-manager = {
       type = "github";
       owner = "nix-community";
@@ -83,6 +91,7 @@
       repo = "nix-doom-emacs";
       ref = "master";
       inputs = {
+        flake-compat.follows = "flake-compat";
         emacs-overlay.follows = "emacs-overlay";
         flake-utils.follows = "flake-utils";
         nixpkgs.follows = "nixpkgs";
@@ -184,8 +193,10 @@
       repo = "pre-commit-hooks.nix";
       ref = "master";
       inputs = {
+        flake-compat.follows = "flake-compat";
         flake-utils.follows = "flake-utils";
         nixpkgs.follows = "nixpkgs";
+        nixpkgs-stable.follows = "nixpkgs-stable";
       };
     };
 
@@ -220,32 +231,20 @@
       flake = false;
     };
 
-    # NOTE These inputs are used indirectly. They are declared explicitly here
-    # because nested follows is not yet release in a stable version of nix[1].
-    #
-    # [1]: https://github.com/NixOS/nix/issues/5790
-    # [1]: https://github.com/NixOS/nix/pull/6621
-    # flake-utils-plus = {
-    #   type = "github";
-    #   owner = "gytis-ivaskevicius";
-    #   repo = "flake-utils-plus";
-    #   ref = "master";
-    #   inputs.flake-utils.follows = "flake-utils";
-    # };
-    # flake-compat = {
-    #   type = "github";
-    #   owner = "edolstra";
-    #   repo = "flake-compat";
-    #   ref = "master";
-    #   flake = false;
-    # };
+    flake-compat = {
+      type = "github";
+      owner = "edolstra";
+      repo = "flake-compat";
+      ref = "master";
+      flake = false;
+    };
   };
 
   outputs = inputs:
     with inputs; let
       lib = nixpkgs.lib.extend (import ./lib);
     in
-      flake-utils.lib.eachSystem ["x86_64-linux" "aarch64-linux"]
+      flake-utils.lib.eachDefaultSystem
       (system: let
         pkgs = import nixpkgs {
           inherit system;
@@ -290,10 +289,15 @@
       // {
         inherit lib;
 
-        nixosModules.nixfiles = import ./modules/nixfiles;
+        modules.nixfiles = import ./modules/nixfiles;
 
+        nixosModules.nixfiles = import ./modules/nixos;
         nixosConfigurations =
-          import ./configurations {inherit inputs lib;};
+          import ./nixosConfigurations {inherit inputs lib;};
+
+        darwinModules.nixfiles = import ./modules/darwin;
+        darwinConfigurations =
+          import ./darwinConfigurations {inherit inputs lib;};
 
         # TODO Make it so that self.packages also can use this.
         overlays.default = final: _: {
diff --git a/lib/default.nix b/lib/default.nix
index d121f5e..da4b4d2 100644
--- a/lib/default.nix
+++ b/lib/default.nix
@@ -1,7 +1,7 @@
 lib: _: rec {
   my = import ./my.nix lib;
 
-  dns = import ./dns.nix lib;
+  dns = import ./dns.nix;
 
   isEven = number:
     assert (builtins.isInt number) || (builtins.isFloat number);
diff --git a/lib/dns.nix b/lib/dns.nix
index e486f1c..5e1d767 100644
--- a/lib/dns.nix
+++ b/lib/dns.nix
@@ -1,4 +1,4 @@
-_: {
+{
   const = {
     quad9 = {
       default = ["9.9.9.9" "149.112.112.112" "2620:fe::fe" "2620:fe::9"];
diff --git a/lib/my.nix b/lib/my.nix
index f9c6a35..9b999a5 100644
--- a/lib/my.nix
+++ b/lib/my.nix
@@ -9,23 +9,36 @@ with lib;
             attrsOf (submodule ({name, ...}: {
               freeformType = attrs;
               options = let
+                mkConfigurationArchOption = type:
+                  mkOption {
+                    description = "Whether the machine's architecture is a ${type} one.";
+                    type = bool;
+                    default = false;
+                  };
+
                 mkConfigurationTypeOption = type:
                   mkOption {
-                    description = "Whether the machine is a ${type} one.";
+                    description = "Whether the machine's functional type is a ${type} one.";
                     type = bool;
                     default = false;
                   };
               in {
                 hostname = mkOption {
-                  description = "The machine's hostname";
+                  description = "The machine's hostname.";
                   type = str;
                   default = name;
                   readOnly = true;
                 };
+
                 system = mkOption {
-                  description = "The machine's system";
-                  type = enum ["x86_64-linux" "aarch64-linux"];
-                  default = "x86_64-linux";
+                  description = "The machine's system.";
+                  type = nullOr (enum [
+                    "aarch64-darwin"
+                    "aarch64-linux"
+                    "x86_64-darwin"
+                    "x86_64-linux"
+                  ]);
+                  default = null;
                 };
 
                 isHeadless = mkConfigurationTypeOption "headless";
@@ -39,12 +52,12 @@ with lib;
                     default = null;
                   };
                   prefixLength = mkOption {
-                    description = "The machine's IPv4 prefix length.";
+                    description = "The machine's public IPv4 prefix length.";
                     type = nullOr int;
                     default = null;
                   };
                   gatewayAddress = mkOption {
-                    description = "The machine's IPv4 gateway address.";
+                    description = "The machine's public IPv4 gateway address.";
                     type = nullOr str;
                     default = null;
                   };
@@ -56,12 +69,12 @@ with lib;
                     default = null;
                   };
                   prefixLength = mkOption {
-                    description = "The machine's IPv6 prefix length.";
+                    description = "The machine's public IPv6 prefix length.";
                     type = nullOr int;
                     default = null;
                   };
                   gatewayAddress = mkOption {
-                    description = "The machine's IPv6 gateway address.";
+                    description = "The machine's public IPv6 gateway address.";
                     type = nullOr str;
                     default = null;
                   };
@@ -74,7 +87,7 @@ with lib;
                     default = null;
                   };
                   ipv6.address = mkOption {
-                    description = "The machine's internal IPv4 addresses.";
+                    description = "The machine's internal IPv6 addresses.";
                     type = nullOr str;
                     default = null;
                   };
@@ -93,7 +106,7 @@ with lib;
                 # filtering for actual subdomains. We can remove this option
                 # altogether then.
                 domains = mkOption {
-                  description = "External domains that resovle to this address.";
+                  description = "External domains that resolve to this address.";
                   type = listOf str;
                   default = [];
                 };
@@ -171,7 +184,9 @@ with lib;
                 shire
               ];
             };
+
             varda = {
+              system = "x86_64-linux";
               isHeadless = true;
               ipv4 = {
                 gatewayAddress = "@IPV4_ADDRESS@";
@@ -189,7 +204,9 @@ with lib;
                 publicKey = "@PUBLIC_KEY@";
               };
             };
+
             yavanna = {
+              system = "x86_64-linux";
               isHeadless = true;
               ipv4 = {
                 gatewayAddress = "@IPV4_ADDRESS@";
@@ -209,7 +226,9 @@ with lib;
               domains = with my.domain; ["flood.${shire}"];
               syncthing.id = "@SYNCTHING_ID@";
             };
+
             eonwe = {
+              system = "x86_64-linux";
               isHeadful = true;
               wireguard = {
                 ipv4.address = "10.69.3.1";
@@ -218,7 +237,9 @@ with lib;
               };
               syncthing.id = "@SYNCTHING_ID@";
             };
+
             melian = {
+              system = "x86_64-linux";
               isHeadful = true;
               wireguard = {
                 ipv4.address = "10.69.4.1";
@@ -227,6 +248,12 @@ with lib;
               };
               syncthing.id = "@SYNCTHING_ID@";
             };
+
+            mairon = {
+              system = "aarch64-darwin";
+              isHeadful = true;
+            };
+
             gothmog = {
               isOther = true;
               wireguard = {
diff --git a/modules/darwin/common/default.nix b/modules/darwin/common/default.nix
new file mode 100644
index 0000000..149b2d6
--- /dev/null
+++ b/modules/darwin/common/default.nix
@@ -0,0 +1,10 @@
+_: {
+  imports = [
+    ./home-manager.nix
+    ./locale.nix
+    ./networking.nix
+    ./nix.nix
+    ./shell.nix
+    ./users.nix
+  ];
+}
diff --git a/modules/darwin/common/home-manager.nix b/modules/darwin/common/home-manager.nix
new file mode 100644
index 0000000..4fc6cbe
--- /dev/null
+++ b/modules/darwin/common/home-manager.nix
@@ -0,0 +1,3 @@
+{inputs, ...}: {
+  imports = [inputs.home-manager.darwinModule];
+}
diff --git a/modules/darwin/common/locale.nix b/modules/darwin/common/locale.nix
new file mode 100644
index 0000000..1ecf6fe
--- /dev/null
+++ b/modules/darwin/common/locale.nix
@@ -0,0 +1,7 @@
+{lib, ...}:
+with lib; {
+  environment.variables.LANG = "en_GB.UTF-8";
+
+  # TODO https://daiderd.com/nix-darwin/manual/index.html#opt-system.keyboard.enableKeyMapping
+  system.keyboard = {};
+}
diff --git a/modules/darwin/common/networking.nix b/modules/darwin/common/networking.nix
new file mode 100644
index 0000000..6c503bc
--- /dev/null
+++ b/modules/darwin/common/networking.nix
@@ -0,0 +1,10 @@
+{
+  this,
+  localHostname ? this.hostname,
+  ...
+}: {
+  networking = {
+    computerName = localHostname;
+    hostName = localHostname;
+  };
+}
diff --git a/modules/darwin/common/nix.nix b/modules/darwin/common/nix.nix
new file mode 100644
index 0000000..a522cb0
--- /dev/null
+++ b/modules/darwin/common/nix.nix
@@ -0,0 +1,21 @@
+{
+  lib,
+  this,
+  ...
+}:
+with lib; {
+  nix = {
+    daemonIOLowPriority = false;
+    daemonProcessType = "Standard";
+
+    extraOptions = optionalString (this.system == "aarch64-darwin") ''
+      extra-platforms = x86_64-darwin aarch64-darwin
+    '';
+
+    settings.trusted-users = ["@admin"];
+  };
+
+  services.nix-daemon.enable = true;
+
+  system.stateVersion = 4;
+}
diff --git a/modules/darwin/common/shell.nix b/modules/darwin/common/shell.nix
new file mode 100644
index 0000000..5985f50
--- /dev/null
+++ b/modules/darwin/common/shell.nix
@@ -0,0 +1,3 @@
+{pkgs, ...}: {
+  environment.shells = with pkgs; [bashInteractive];
+}
diff --git a/modules/darwin/common/users.nix b/modules/darwin/common/users.nix
new file mode 100644
index 0000000..957e50c
--- /dev/null
+++ b/modules/darwin/common/users.nix
@@ -0,0 +1,11 @@
+{
+  lib,
+  localUsername ? lib.my.username,
+  ...
+}:
+with lib; {
+  # The only MacOS machine I'm currently using has a pre-configured domain user
+  # account that I have to login as. I may accidentally break something if I
+  # change options here so this section is left practically untouched.
+  users.users.${localUsername}.home = "/Users/${localUsername}";
+}
diff --git a/modules/darwin/default.nix b/modules/darwin/default.nix
new file mode 100644
index 0000000..153c857
--- /dev/null
+++ b/modules/darwin/default.nix
@@ -0,0 +1,10 @@
+_: {
+  imports = [
+    ./common
+    ./emacs.nix
+    ./fonts.nix
+    ./gnupg.nix
+    ./homebrew.nix
+    ./profiles
+  ];
+}
diff --git a/modules/darwin/emacs.nix b/modules/darwin/emacs.nix
new file mode 100644
index 0000000..02bfb83
--- /dev/null
+++ b/modules/darwin/emacs.nix
@@ -0,0 +1,15 @@
+{
+  config,
+  lib,
+  ...
+}:
+with lib; let
+  cfg = config.nixfiles.modules.emacs;
+in {
+  config = mkIf cfg.enable {
+    # services.emacs = {
+    #   enable = true;
+    #   package = config.hm.programs.doom-emacs.package;
+    # };
+  };
+}
diff --git a/modules/darwin/fonts.nix b/modules/darwin/fonts.nix
new file mode 100644
index 0000000..741fdc8
--- /dev/null
+++ b/modules/darwin/fonts.nix
@@ -0,0 +1,12 @@
+{
+  config,
+  lib,
+  ...
+}:
+with lib; let
+  cfg = config.nixfiles.modules.fonts;
+in {
+  config = mkIf cfg.enable {
+    fonts.fontDir.enable = true;
+  };
+}
diff --git a/modules/darwin/gnupg.nix b/modules/darwin/gnupg.nix
new file mode 100644
index 0000000..073d3b1
--- /dev/null
+++ b/modules/darwin/gnupg.nix
@@ -0,0 +1,15 @@
+{
+  config,
+  lib,
+  ...
+}:
+with lib; let
+  cfg = config.nixfiles.modules.gnupg;
+in {
+  config = mkIf cfg.enable {
+    programs.gnupg.agent = {
+      enable = true;
+      enableSSHSupport = true;
+    };
+  };
+}
diff --git a/modules/darwin/homebrew.nix b/modules/darwin/homebrew.nix
new file mode 100644
index 0000000..35e8e77
--- /dev/null
+++ b/modules/darwin/homebrew.nix
@@ -0,0 +1,23 @@
+{
+  config,
+  inputs,
+  lib,
+  pkgs,
+  ...
+}:
+with lib; let
+  cfg = config.nixfiles.modules.homebrew;
+in {
+  options.nixfiles.modules.homebrew.enable = mkEnableOption "Homebrew";
+
+  config = mkIf cfg.enable {
+    # This option requires an installed Homebrew[1].
+    #
+    # [1]: https://daiderd.com/nix-darwin/manual/index.html#opt-homebrew.enable
+    # [1]: https://brew.sh
+    homebrew = {
+      enable = true;
+      taps = [];
+    };
+  };
+}
diff --git a/modules/darwin/profiles/default.nix b/modules/darwin/profiles/default.nix
new file mode 100644
index 0000000..f42647a
--- /dev/null
+++ b/modules/darwin/profiles/default.nix
@@ -0,0 +1,93 @@
+{
+  config,
+  lib,
+  pkgs,
+  this,
+  ...
+}:
+with lib; let
+  cfg = config.nixfiles.modules.profiles.default;
+in {
+  imports = [
+    ./headful.nix
+  ];
+
+  config = mkIf cfg.enable {
+    hm.home.packages = with pkgs; [m-cli];
+
+    system = {
+      defaults = {
+        CustomUserPreferences = {};
+
+        ActivityMonitor = {};
+
+        NSGlobalDomain = {
+          AppleEnableMouseSwipeNavigateWithScrolls = true;
+          AppleEnableSwipeNavigateWithScrolls = true;
+
+          AppleInterfaceStyle = "Dark";
+
+          AppleShowAllExtensions = true;
+          AppleShowAllFiles = true;
+
+          InitialKeyRepeat = 15;
+          KeyRepeat = 2;
+
+          NSAutomaticCapitalizationEnabled = false;
+          NSAutomaticDashSubstitutionEnabled = false;
+          NSAutomaticPeriodSubstitutionEnabled = false;
+          NSAutomaticQuoteSubstitutionEnabled = false;
+          NSAutomaticSpellingCorrectionEnabled = false;
+
+          # Make function keys to work as they should.
+          "com.apple.keyboard.fnState" = true;
+
+          # Disable the absolutely retarded "natural" scrolling.
+          "com.apple.swipescrolldirection" = false;
+        };
+
+        dock = {
+          orientation = "bottom";
+          tilesize = 18;
+
+          show-recents = false;
+          static-only = false;
+
+          # Disable hot corners.
+          wvous-bl-corner = 1;
+          wvous-br-corner = 1;
+          wvous-tl-corner = 1;
+          wvous-tr-corner = 1;
+        };
+
+        finder = {
+          AppleShowAllExtensions = true;
+          AppleShowAllFiles = true;
+
+          CreateDesktop = true;
+
+          FXDefaultSearchScope = "SCcf";
+          FXEnableExtensionChangeWarning = false;
+          FXPreferredViewStyle = "clmv";
+
+          ShowStatusBar = false;
+          ShowPathbar = true;
+          _FXShowPosixPathInTitle = true;
+        };
+
+        trackpad = {
+          Clicking = true;
+          Dragging = false;
+        };
+      };
+
+      keyboard = {
+        enableKeyMapping = true;
+        nonUS.remapTilde = true;
+        remapCapsLockToControl = false;
+        remapCapsLockToEscape = true;
+        swapLeftCommandAndLeftAlt = false;
+      };
+    };
+  };
+}
diff --git a/modules/darwin/profiles/headful.nix b/modules/darwin/profiles/headful.nix
new file mode 100644
index 0000000..44695f6
--- /dev/null
+++ b/modules/darwin/profiles/headful.nix
@@ -0,0 +1,19 @@
+{
+  config,
+  lib,
+  pkgs,
+  this,
+  ...
+}:
+with lib; let
+  cfg = config.nixfiles.modules.profiles.headful;
+in {
+  config = mkIf cfg.enable {
+    nixfiles.modules.homebrew.enable = true;
+
+    homebrew.casks = [
+      {name = "firefox";}
+      {name = "telegram-desktop";}
+    ];
+  };
+}
diff --git a/modules/nixfiles/alacritty.nix b/modules/nixfiles/alacritty.nix
index 5f8833a..142f6c5 100644
--- a/modules/nixfiles/alacritty.nix
+++ b/modules/nixfiles/alacritty.nix
@@ -19,10 +19,7 @@ in {
             y = size;
           };
           dynamic_padding = false;
-          decorations =
-            if kde.enable
-            then "full"
-            else "none";
+          decorations = "full";
         };
         font = with config.fontScheme.monospaceFont; {
           normal = {
diff --git a/modules/nixfiles/bat.nix b/modules/nixfiles/bat.nix
index 4a98f99..2b31d16 100644
--- a/modules/nixfiles/bat.nix
+++ b/modules/nixfiles/bat.nix
@@ -7,7 +7,8 @@
 with lib; let
   cfg = config.nixfiles.modules.bat;
 in {
-  options.nixfiles.modules.bat.enable = mkEnableOption "bat, an alternative to cat";
+  options.nixfiles.modules.bat.enable =
+    mkEnableOption "bat, an alternative to cat";
 
   config = mkIf cfg.enable {
     hm.programs = {
diff --git a/modules/nixfiles/chromium.nix b/modules/nixfiles/chromium.nix
index 6a7c771..4f0ae12 100644
--- a/modules/nixfiles/chromium.nix
+++ b/modules/nixfiles/chromium.nix
@@ -23,7 +23,5 @@ in {
         ];
       };
     };
-
-    services.psd.enable = true;
   };
 }
diff --git a/modules/nixfiles/common/default.nix b/modules/nixfiles/common/default.nix
index 4f7a6c1..2bfe7e8 100644
--- a/modules/nixfiles/common/default.nix
+++ b/modules/nixfiles/common/default.nix
@@ -2,17 +2,10 @@ _: {
   imports = [
     ./documentation.nix
     ./home-manager.nix
-    ./kernel.nix
     ./locale.nix
     ./networking.nix
     ./nix
-    ./secrets.nix
-    ./security.nix
-    ./services.nix
     ./shell
-    ./systemd.nix
-    ./tmp.nix
     ./users.nix
-    ./xdg.nix
   ];
 }
diff --git a/modules/nixfiles/common/documentation.nix b/modules/nixfiles/common/documentation.nix
index 46ec9a5..55f6138 100644
--- a/modules/nixfiles/common/documentation.nix
+++ b/modules/nixfiles/common/documentation.nix
@@ -16,27 +16,8 @@ with lib; {
 
       documentation = {
         enable = true;
-
-        dev.enable = true;
         doc.enable = false;
         info.enable = false;
-        nixos.enable = true;
-
-        man.man-db.manualPages =
-          (pkgs.buildEnv {
-            name = "man-paths";
-            paths = with config;
-              environment.systemPackages ++ hm.home.packages;
-            pathsToLink = ["/share/man"];
-            extraOutputsToInstall = ["man"];
-            ignoreCollisions = true;
-          })
-          .overrideAttrs (_: _: {__contentAddressed = true;});
-      };
-
-      environment.sessionVariables = {
-        MANOPT = "--no-hyphenation";
-        MANPAGER = "${pkgs.less}/bin/less -+F";
       };
     })
     (mkIf this.isHeadless {
diff --git a/modules/nixfiles/common/home-manager.nix b/modules/nixfiles/common/home-manager.nix
index 7ce872b..b28260a 100644
--- a/modules/nixfiles/common/home-manager.nix
+++ b/modules/nixfiles/common/home-manager.nix
@@ -1,18 +1,18 @@
 {
-  config,
   inputs,
   lib,
+  localUsername ? lib.my.username,
   ...
 }:
 with lib; {
   imports = [
-    inputs.home-manager.nixosModules.home-manager
-    (mkAliasOptionModule ["hm"] ["home-manager" "users" my.username])
+    (mkAliasOptionModule ["hm"] ["home-manager" "users" localUsername])
   ];
 
   hm = {
     news.display = "silent";
-    home = {inherit (config.system) stateVersion;};
+    home.stateVersion = with builtins;
+      head (split "\n" (readFile "${inputs.nixpkgs}/.version"));
   };
 
   home-manager = {
@@ -21,6 +21,4 @@ with lib; {
     useGlobalPkgs = true;
     verbose = true;
   };
-
-  system.extraDependencies = [inputs.home-manager];
 }
diff --git a/modules/nixfiles/common/locale.nix b/modules/nixfiles/common/locale.nix
index 5f0d5ae..bcb577a 100644
--- a/modules/nixfiles/common/locale.nix
+++ b/modules/nixfiles/common/locale.nix
@@ -1,27 +1,6 @@
-{lib, ...}:
-with lib; {
-  i18n = {
-    defaultLocale = mkDefault "en_GB.UTF-8";
-    supportedLocales = [
-      "C.UTF-8/UTF-8"
-      "en_GB.UTF-8/UTF-8"
-      "en_US.UTF-8/UTF-8"
-      "ja_JP.UTF-8/UTF-8"
-      "ru_RU.UTF-8/UTF-8"
-    ];
-  };
-
-  time.timeZone = mkDefault "Europe/Moscow";
-
-  # TODO Fcitx or UIM as a Japanese IME.
-  services.xserver = {
-    layout = comcat ["us" "ru"];
-    xkbVariant = comcat ["" "phonetic"];
-    xkbOptions = comcat [
-      "terminate:ctrl_alt_bksp"
-      "caps:escape"
-      "compose:menu"
-      "grp:win_space_toggle"
-    ];
+_: {
+  hm.home.language = {
+    collate = "C";
+    messages = "C";
   };
 }
diff --git a/modules/nixfiles/common/networking.nix b/modules/nixfiles/common/networking.nix
index 8512d78..e5d27d8 100644
--- a/modules/nixfiles/common/networking.nix
+++ b/modules/nixfiles/common/networking.nix
@@ -1,100 +1,3 @@
-{
-  config,
-  lib,
-  pkgs,
-  this,
-  ...
-}:
-with lib; {
-  hm.home.file.".digrc".text = ''
-    +answer
-    +multiline
-    +recurse
-  '';
-
-  # TODO Support multiple interfaces and IP addresses.
-  networking = mkMerge [
-    {
-      domain = my.domain.shire;
-
-      hostName = this.hostname;
-      hostId = substring 0 8 (builtins.hashString "md5" this.hostname);
-
-      # Remove default hostname mappings. This is required at least by the current
-      # implementation of the montoring module.
-      hosts = {
-        "127.0.0.2" = mkForce [];
-        "::1" = mkForce [];
-      };
-
-      nameservers = mkDefault dns.const.quad9.default;
-
-      useDHCP = false;
-
-      firewall = {
-        enable = true;
-
-        rejectPackets = false;
-
-        allowPing = true;
-        pingLimit = "--limit 1/minute --limit-burst 5";
-
-        logRefusedConnections = false;
-        logRefusedPackets = false;
-        logRefusedUnicastsOnly = false;
-        logReversePathDrops = false;
-      };
-    }
-    (let
-      interface = "eth0"; # This assumes `usePredictableInterfaceNames` is false.
-    in
-      mkIf (hasAttr "ipv4" this && hasAttr "ipv6" this) {
-        usePredictableInterfaceNames = false; # NOTE This can break something!
-        interfaces.${interface} = {
-          ipv4.addresses = with this.ipv4;
-            optional (isString address && isInt prefixLength) {
-              inherit address prefixLength;
-            };
-
-          ipv6.addresses = with this.ipv6;
-            optional (isString address && isInt prefixLength) {
-              inherit address prefixLength;
-            };
-        };
-        defaultGateway = with this.ipv4;
-          mkIf (isString gatewayAddress) {
-            inherit interface;
-            address = gatewayAddress;
-          };
-        defaultGateway6 = with this.ipv6;
-          mkIf (isString gatewayAddress) {
-            inherit interface;
-            address = gatewayAddress;
-          };
-      })
-  ];
-
-  environment = {
-    systemPackages = with pkgs; [myip];
-
-    shellAliases = listToAttrs (map
-      ({
-        name,
-        value,
-      }:
-        nameValuePair name "${pkgs.iproute2}/bin/${value}") [
-        {
-          name = "bridge";
-          value = "bridge -color=always";
-        }
-        {
-          name = "ip";
-          value = "ip -color=always";
-        }
-        {
-          name = "tc";
-          value = "tc -color=always";
-        }
-      ]);
-  };
+{pkgs, ...}: {
+  environment.systemPackages = with pkgs; [myip];
 }
diff --git a/modules/nixfiles/common/nix/default.nix b/modules/nixfiles/common/nix/default.nix
index c9d3b04..aeb25bd 100644
--- a/modules/nixfiles/common/nix/default.nix
+++ b/modules/nixfiles/common/nix/default.nix
@@ -2,12 +2,8 @@
   config,
   inputs,
   lib,
+  localUsername ? lib.my.username,
   pkgs,
-  pkgsLocal,
-  pkgsMaster,
-  pkgsPR,
-  pkgsRev,
-  pkgsStabe,
   this,
   ...
 }:
@@ -62,10 +58,11 @@ with lib; {
       // {nixfiles.flake = inputs.self;};
 
     settings = {
-      trusted-users = ["root" "@wheel"];
+      trusted-users = ["root" localUsername];
 
       substituters = [
         "https://azahi.cachix.org"
+        "https://cache.iog.io"
         "https://cachix.cachix.org"
         "https://nix-community.cachix.org"
         "https://pre-commit-hooks.cachix.org"
@@ -73,6 +70,7 @@ with lib; {
       trusted-public-keys = [
         "azahi.cachix.org-1:2bayb+iWYMAVw3ZdEpVg+NPOHCXncw7WMQ0ElX1GO3s="
         "cachix.cachix.org-1:eWNHQldwUO7G2VkjpnjDbWwy4KQ/HNxht7H4SSoMckM="
+        "hydra.iohk.io:f/Ea+s+dFdN+3Y/G+FDgSq+a5NEWhJGzdjvKNGv0/EQ="
         "nix-community.cachix.org-1:mB9FSh9qf2dCimDSUo8Zy7bkq5CX+/rkCWyvRCYg3Fs="
         "pre-commit-hooks.cachix.org-1:Pkk3Panw5AW24TOv6kz3PvLhlH8puAsJTBbOPmBo7Rc="
       ];
@@ -114,45 +112,25 @@ with lib; {
         inherit (np) yaml-language-server;
         json-language-server = np.vscode-json-languageserver-bin;
         k3d = kube3d;
+        kubelogin = kubelogin-oidc;
         lua-language-server = sumneko-lua-language-server;
         nix-language-server = rnix-lsp;
         omnisharp = omnisharp-roslyn;
+        telepresence = telepresence2;
         tor-browser = tor-browser-bundle-bin;
       }))
-    agenix.overlay
     emacs-overlay.overlay
     # nil.overlays.default
-    # nix-minecraft-servers.overlays.default
     nur.overlay
     # pollymc.overlay
-    xmonad-ng.overlays.default
   ];
 
-  system = {
-    stateVersion = builtins.readFile "${inputs.nixpkgs}/.version";
-
-    extraDependencies = with inputs; [
-      nixos-hardware
-      nixpkgs
-      nixpkgs-master
-      nixpkgs-stable
-      nur
+  environment.systemPackages = with pkgs;
+    optionals this.isHeadful [
+      nix-du
+      nix-top
+      nix-tree
     ];
-  };
-
-  environment = {
-    sessionVariables.NIX_SHELL_PRESERVE_PROMPT = "1";
-
-    localBinInPath = true;
-
-    defaultPackages = [];
-    systemPackages = with pkgs;
-      optionals this.isHeadful [
-        nix-du
-        nix-top
-        nix-tree
-      ];
-  };
 
   hm.home = {
     packages = with pkgs; [nix-index];
diff --git a/modules/nixfiles/common/services.nix b/modules/nixfiles/common/services.nix
deleted file mode 100644
index 376c87d..0000000
--- a/modules/nixfiles/common/services.nix
+++ /dev/null
@@ -1,9 +0,0 @@
-_: {
-  services = {
-    earlyoom.enable = true;
-    haveged.enable = true;
-    irqbalance.enable = true;
-  };
-
-  hardware.ksm.enable = true;
-}
diff --git a/modules/nixfiles/common/shell/default.nix b/modules/nixfiles/common/shell/default.nix
index 8ed2e99..9425578 100644
--- a/modules/nixfiles/common/shell/default.nix
+++ b/modules/nixfiles/common/shell/default.nix
@@ -40,6 +40,72 @@ with lib; {
           fi
         '';
 
+        shellAliases =
+          listToAttrs
+          (map
+            ({
+              name,
+              value,
+            }:
+              nameValuePair name (with pkgs; let
+                pkg =
+                  if this.isHeadful
+                  then
+                    (coreutils.overrideAttrs (_: super: {
+                      patches =
+                        super.patches
+                        ++ [
+                          (fetchpatch {
+                            url = "https://raw.githubusercontent.com/jarun/advcpmv/ea268d870b475edd5960dcd55d5378abc9705958/advcpmv-0.9-9.1.patch";
+                            hash = "sha256-d+SRT/R4xmfHLAdOr7m4R3WFiW64P5ZH6iqDvErYCyg=";
+                          })
+                        ];
+                    }))
+                  else coreutils;
+              in "${pkg}/bin/coreutils --coreutils-prog=${value}"))
+            (
+              let
+                mkAlias = {
+                  name ? head command,
+                  command,
+                }: {
+                  inherit name;
+                  value = concatStringsSep " " command;
+                };
+
+                progressBar = optionalString this.isHeadful "--progress-bar";
+              in [
+                (mkAlias {
+                  command = ["cp" "--interactive" "--recursive" progressBar];
+                })
+                (mkAlias {command = ["mv" "--interactive" progressBar];})
+                (mkAlias {command = ["rm" "--interactive=once"];})
+                (mkAlias {command = ["ln" "--interactive"];})
+                (mkAlias {command = ["mkdir" "--parents"];})
+                (mkAlias {command = ["rmdir" "--parents"];})
+                (mkAlias {
+                  name = "lower";
+                  command = ["tr" "'[:upper:]'" "'[:lower:]'"];
+                })
+                (mkAlias {
+                  name = "upper";
+                  command = ["tr" "'[:lower:]'" "'[:upper:]'"];
+                })
+                (mkAlias {
+                  name = "disk";
+                  command = [
+                    "df"
+                    "--human-readable"
+                    "--exclude-type=tmpfs"
+                    "--exclude-type=devtmpfs"
+                    "2>/dev/null"
+                  ];
+                })
+              ]
+            ))
+          // genAttrs ["grep" "egrep" "fgrep"]
+          (name: "${pkgs.gnugrep}/bin/${name} --color=always");
+
         historyControl = ["ignoredups" "ignorespace"];
       };
 
@@ -51,82 +117,12 @@ with lib; {
     home.packages = with pkgs; [grc];
   };
 
-  programs.command-not-found.enable = false;
-
-  environment = {
-    shellAliases =
-      listToAttrs
-      (map
-        ({
-          name,
-          value,
-        }:
-          nameValuePair name (with pkgs; let
-            pkg =
-              if this.isHeadful
-              then
-                (coreutils.overrideAttrs (_: super: {
-                  patches =
-                    super.patches
-                    ++ [
-                      (fetchpatch {
-                        url = "https://raw.githubusercontent.com/jarun/advcpmv/ea268d870b475edd5960dcd55d5378abc9705958/advcpmv-0.9-9.1.patch";
-                        hash = "sha256-d+SRT/R4xmfHLAdOr7m4R3WFiW64P5ZH6iqDvErYCyg=";
-                      })
-                    ];
-                }))
-              else coreutils;
-          in "${pkg}/bin/coreutils --coreutils-prog=${value}"))
-        (
-          let
-            mkAlias = {
-              name ? head command,
-              command,
-            }: {
-              inherit name;
-              value = concatStringsSep " " command;
-            };
-
-            progressBar = optionalString this.isHeadful "--progress-bar";
-          in [
-            (mkAlias {
-              command = ["cp" "--interactive" "--recursive" progressBar];
-            })
-            (mkAlias {command = ["mv" "--interactive" progressBar];})
-            (mkAlias {command = ["rm" "--interactive=once"];})
-            (mkAlias {command = ["ln" "--interactive"];})
-            (mkAlias {command = ["mkdir" "--parents"];})
-            (mkAlias {command = ["rmdir" "--parents"];})
-            (mkAlias {
-              name = "lower";
-              command = ["tr" "'[:upper:]'" "'[:lower:]'"];
-            })
-            (mkAlias {
-              name = "upper";
-              command = ["tr" "'[:lower:]'" "'[:upper:]'"];
-            })
-            (mkAlias {
-              name = "disk";
-              command = [
-                "df"
-                "--human-readable"
-                "--exclude-type=tmpfs"
-                "--exclude-type=devtmpfs"
-                "2>/dev/null"
-              ];
-            })
-          ]
-        ))
-      // genAttrs ["grep" "egrep" "fgrep"]
-      (name: "${pkgs.gnugrep}/bin/${name} --color=always");
-
-    systemPackages = with pkgs; [
-      bash-completion
-      bc
-      gawk
-      hr
-      moreutils
-      pv
-    ];
-  };
+  environment.systemPackages = with pkgs; [
+    bash-completion
+    bc
+    gawk
+    hr
+    moreutils
+    pv
+  ];
 }
diff --git a/modules/nixfiles/common/users.nix b/modules/nixfiles/common/users.nix
index fb85c1b..aee0e38 100644
--- a/modules/nixfiles/common/users.nix
+++ b/modules/nixfiles/common/users.nix
@@ -1,21 +1,8 @@
-{lib, ...}:
+{
+  lib,
+  localUsername ? lib.my.username,
+  ...
+}:
 with lib; {
-  imports = [(mkAliasOptionModule ["my"] ["users" "users" my.username])];
-
-  users = {
-    mutableUsers = false;
-
-    users = {
-      root.hashedPassword = "@HASHED_PASSWORD@";
-
-      ${my.username} = {
-        isNormalUser = true;
-        uid = 1000;
-        description = my.fullname;
-        inherit (my) hashedPassword;
-        openssh.authorizedKeys.keys = [my.ssh.key];
-        extraGroups = ["wheel"];
-      };
-    };
-  };
+  imports = [(mkAliasOptionModule ["my"] ["users" "users" localUsername])];
 }
diff --git a/modules/nixfiles/default.nix b/modules/nixfiles/default.nix
index 82ccc27..d4e5e26 100644
--- a/modules/nixfiles/default.nix
+++ b/modules/nixfiles/default.nix
@@ -1,78 +1,31 @@
-{...}: {
+_: {
   imports = [
-    ./acme.nix
     ./alacritty.nix
-    ./alertmanager.nix
-    ./android.nix
     ./aria2.nix
     ./bat.nix
     ./beets.nix
-    ./bluetooth.nix
     ./chromium.nix
     ./common
     ./curl.nix
     ./direnv.nix
-    ./docker.nix
-    ./dwm.nix
     ./emacs
-    ./endlessh-go.nix
-    ./endlessh.nix
-    ./fail2ban.nix
     ./firefox
     ./fonts.nix
-    ./games
     ./git.nix
     ./gnupg.nix
-    ./gotify.nix
-    ./grafana.nix
     ./htop.nix
-    ./hydra.nix
-    ./ipfs.nix
-    ./kde.nix
-    ./libvirtd.nix
-    ./lidarr.nix
-    ./loki.nix
-    ./lxc.nix
-    ./matrix
-    ./monitoring
     ./mpd.nix
     ./mpv.nix
-    ./nextcloud.nix
-    ./nginx.nix
     ./nmap.nix
-    ./node-exporter.nix
-    ./nsd.nix
     ./openssh.nix
     ./password-store.nix
-    ./podman.nix
-    ./postgresql.nix
     ./profiles
-    ./prometheus.nix
-    ./promtail.nix
-    ./psd.nix
     ./qutebrowser.nix
-    ./radarr.nix
-    ./radicale.nix
-    ./rss-bridge.nix
-    ./rtorrent.nix
-    ./searx.nix
-    ./shadowsocks.nix
-    ./soju.nix
-    ./solaar.nix
-    ./sonarr.nix
-    ./sound.nix
     ./subversion.nix
-    ./syncthing.nix
-    ./throttled.nix
     ./tmux.nix
-    ./unbound.nix
-    ./vaultwarden.nix
     ./vim
     ./vscode.nix
     ./wget.nix
-    ./wireguard.nix
-    ./x11.nix
-    ./xmonad.nix
     ./zathura.nix
   ];
 }
diff --git a/modules/nixfiles/discord.nix b/modules/nixfiles/discord.nix
new file mode 100644
index 0000000..190b5fc
--- /dev/null
+++ b/modules/nixfiles/discord.nix
@@ -0,0 +1,22 @@
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}:
+with lib; let
+  cfg = config.nixfiles.modules.discord;
+in {
+  options.nixfiles.modules.discord.enable =
+    mkEnableOption "Steam runtime";
+
+  config = mkIf cfg.enable {
+    nixfiles.modules.common.nix.allowedUnfreePackages = ["discord"];
+
+    hm.home.packages = with pkgs; [
+      (discord.override {
+        withOpenASAR = true;
+      })
+    ];
+  };
+}
diff --git a/modules/nixfiles/emacs/default.nix b/modules/nixfiles/emacs/default.nix
index 0ae2bf9..933a32e 100644
--- a/modules/nixfiles/emacs/default.nix
+++ b/modules/nixfiles/emacs/default.nix
@@ -11,17 +11,10 @@ in {
   options.nixfiles.modules.emacs.enable = mkEnableOption "GNU Emacs";
 
   config = mkIf cfg.enable {
-    secrets.authinfo = {
-      file = "${inputs.self}/secrets/authinfo";
-      owner = my.username;
-      inherit (config.my) group;
-    };
-
     nixfiles.modules = {
       fonts.enable = true;
       git.client.enable = true;
       gnupg.enable = true;
-      x11.enable = true;
     };
 
     hm = {
@@ -65,7 +58,6 @@ in {
             gore # :lang go
             gotests # :lang go
             graphviz # :lang (org +roam2) :lang plantuml
-            grip # :lang (markdown +grip)
             haskell-language-server # :lang (haskell +lsp)
             haskellPackages.brittany # :lang haskell :editor format
             haskellPackages.cabal-fmt # :lang haskell :editor format
@@ -97,10 +89,6 @@ in {
             texlive.combined.scheme-full # :lang org tex
             unzip # :tools debugger
             wordnet # :tools (lookup +dictionary +offline)
-            xclip # :app everywhere
-            xdotool # :app everywhere
-            xorg.xprop # :app everywhere
-            xorg.xwininfo # :app everywhere
             yaml-language-server # :lang (yaml +lsp)
             zls # :lang (zig +lsp)
             zstd # :emacs undo
@@ -117,13 +105,11 @@ in {
 
           (setq custom-file (file-name-concat doom-emacs-dir "custom.el"))
 
-          ;; Font must be set to n+2 because otherwise it looks too small.
+          Font must be set to n+2 because otherwise it looks too small.
           (setq doom-font (font-spec :family "${config.fontScheme.monospaceFont.family}"
                                      :size ${toString (config.fontScheme.monospaceFont.size + 2)})
                 doom-unicode-font doom-font)
 
-          (appendq! auth-sources '("${config.secrets.authinfo.path}"))
-
           (setq user-full-name "${my.fullname}"
                 user-mail-address "${my.email}")
 
@@ -142,16 +128,6 @@ in {
           (setq skk-large-jisyo "${pkgs.skk-dicts}/share/skk/SKK-JISYO.L")
         '';
       };
-
-      services.emacs = {
-        enable = true;
-        client.enable = true;
-      };
     };
-
-    system.extraDependencies = with inputs; [
-      emacs-overlay
-      nix-doom-emacs
-    ];
   };
 }
diff --git a/modules/nixfiles/emacs/doom/init.el b/modules/nixfiles/emacs/doom/init.el
index ef663a0..efb831e 100644
--- a/modules/nixfiles/emacs/doom/init.el
+++ b/modules/nixfiles/emacs/doom/init.el
@@ -20,7 +20,7 @@
        ophints
        (popup +defaults)
        ;; tabs
-       (treemacs +lsp)
+       ;; (treemacs +lsp)
        ;; unicode
        (vc-gutter +diff-hl +pretty)
        window-select
@@ -91,7 +91,7 @@
        (javascript +lsp +tree-sitter)
        json
        (latex +lsp +tree-sittter)
-       (lua +lsp +tree-sitter)
+       ;; (lua +lsp +tree-sitter)
        (markdown +lsp +tree-sitter)
        (nix +lsp)
        (org +pandoc +roam2)
@@ -99,7 +99,7 @@
        (python +lsp +tree-sitter)
        ;; (racket +lsp +tree-sitter)
        ;; rst
-       (rust +lsp +tree-sitter)
+       ;; (rust +lsp +tree-sitter)
        ;; (scheme +lsp +tree-sitter +racket)
        (sh +lsp +tree-sitter)
        web
@@ -112,7 +112,7 @@
        :app
        calendar
        ;; emms
-       everywhere
+       ;; everywhere
        irc
        (rss +org)
 
diff --git a/modules/nixfiles/endlessh.nix b/modules/nixfiles/endlessh.nix
deleted file mode 100644
index c66d8b3..0000000
--- a/modules/nixfiles/endlessh.nix
+++ /dev/null
@@ -1,45 +0,0 @@
-{
-  config,
-  lib,
-  pkgs,
-  ...
-}:
-with lib; let
-  cfg = config.nixfiles.modules.endlessh;
-in {
-  options.nixfiles.modules.endlessh.enable =
-    mkEnableOption "endlessh";
-
-  config = let
-    port = 22;
-  in
-    mkIf cfg.enable {
-      assertions = [
-        {
-          assertion = !(any (x: x == port) config.services.openssh.ports);
-          message = "Port ${toString port} is already occupied by OpenSSH";
-        }
-      ];
-
-      systemd.services.endlessh = {
-        description = "Endlessh SSH Tarpit";
-        requires = ["network-online.target"];
-        serviceConfig = {
-          Restart = "always";
-          ExecStart = concatStringsSep " " [
-            "${pkgs.endlessh}/bin/endlessh"
-            "-v"
-            "-4"
-            "-p ${toString port}"
-          ];
-          KillSignal = "SIGTERM";
-          AmbientCapabilities = "CAP_NET_BIND_SERVICE";
-          DynamicUser = true;
-          StateDirectory = "endlessh";
-        };
-        wantedBy = ["multi-user.target"];
-      };
-
-      networking.firewall.allowedTCPPorts = [port];
-    };
-}
diff --git a/modules/nixfiles/firefox/default.nix b/modules/nixfiles/firefox/default.nix
index 8557d64..cd651a6 100644
--- a/modules/nixfiles/firefox/default.nix
+++ b/modules/nixfiles/firefox/default.nix
@@ -276,23 +276,17 @@ in {
           };
         };
 
-        extensions = with pkgs.nur.repos.rycee.firefox-addons;
-          [
-            bitwarden
-            consent-o-matic
-            darkreader
-            localcdn
-            noscript
-            privacy-redirect
-            ublock-origin
-            violentmonkey
-          ]
-          ++ optional config.nixfiles.modules.ipfs.enable ipfs-companion;
+        extensions = with pkgs.nur.repos.rycee.firefox-addons; [
+          bitwarden
+          consent-o-matic
+          darkreader
+          localcdn
+          noscript
+          privacy-redirect
+          ublock-origin
+          violentmonkey
+        ];
       };
     };
-
-    services.psd.enable = true;
-
-    system.extraDependencies = [inputs.arkenfox-nixos];
   };
 }
diff --git a/modules/nixfiles/firefox/userChrome.css b/modules/nixfiles/firefox/userChrome.css
index 23fc336..5300d17 100644
--- a/modules/nixfiles/firefox/userChrome.css
+++ b/modules/nixfiles/firefox/userChrome.css
@@ -94,8 +94,8 @@
         min-width: 1.6em;
     }
 
-    #back-button,
     #forward-button,
+    #back-button,
     #context-bookmarklink,
     #context-inspect-a11y,
     #context-navigation,
@@ -117,7 +117,8 @@
     #context_moveTabOptions,
     #context_reopenInContainer,
     #context_selectAllTabs,
-    #context_sendTabToDevice {
+    #context_sendTabToDevice,
+    #webrtcIndicator {
         display: none !important;
     }
 }
diff --git a/modules/nixfiles/fonts.nix b/modules/nixfiles/fonts.nix
index dbae282..483de0d 100644
--- a/modules/nixfiles/fonts.nix
+++ b/modules/nixfiles/fonts.nix
@@ -80,51 +80,12 @@ in {
     };
   };
 
-  config = mkMerge [
-    (mkIf cfg.enable {
-      hm.fonts.fontconfig.enable = true;
-
-      fonts = {
-        fonts = with pkgs; [
-          iosevka-bin
-          (iosevka-bin.override {variant = "aile";})
-          (iosevka-bin.override {variant = "etoile";})
-          sarasa-gothic
-        ];
-
-        fontconfig = {
-          enable = true;
-
-          defaultFonts = {
-            monospace = [
-              "Iosevka"
-              "Sarasa Mono K"
-              "Sarasa Mono J"
-              "Sarasa Mono SC"
-              "Sarasa Mono CL"
-            ];
-            sansSerif = [
-              "Iosevka Aile"
-              "Sarasa Gothic K"
-              "Sarasa Gothic J"
-              "Sarasa Gothic SC"
-              "Sarasa Gothic CL"
-            ];
-            serif = [
-              "Iosevka Etoile"
-              "Sarasa Gothic K"
-              "Sarasa Gothic J"
-              "Sarasa Gothic SC"
-              "Sarasa Gothic CL"
-            ];
-          };
-        };
-      };
-    })
-    (mkIf (!cfg.enable) {
-      # Disable fonts for headless profiles.
-      hm.fonts.fontconfig.enable = mkForce false;
-      fonts.fontconfig.enable = mkForce false;
-    })
-  ];
+  config = mkIf cfg.enable {
+    fonts.fonts = with pkgs; [
+      iosevka-bin
+      (iosevka-bin.override {variant = "aile";})
+      (iosevka-bin.override {variant = "etoile";})
+      sarasa-gothic
+    ];
+  };
 }
diff --git a/modules/nixfiles/git.nix b/modules/nixfiles/git.nix
index facff2f..2c1dd1f 100644
--- a/modules/nixfiles/git.nix
+++ b/modules/nixfiles/git.nix
@@ -1,224 +1,117 @@
 {
   config,
   lib,
-  inputs,
   pkgs,
   ...
 }:
 with lib; let
   cfg = config.nixfiles.modules.git;
 in {
-  options.nixfiles.modules.git = {
-    client.enable = mkEnableOption "Git client";
-    server = {
-      enable = mkEnableOption "Git server";
+  options.nixfiles.modules.git.client.enable =
+    mkEnableOption "Git client";
 
-      domain = mkOption {
-        description = "Domain name sans protocol scheme.";
-        type = with types; nullOr str;
-        default = "git.${config.networking.domain}";
-      };
-
-      package = mkOption {
-        description = "Package.";
-        type = types.package;
-        default = pkgs.cgit-pink;
-      };
-    };
-  };
-
-  config = mkMerge [
-    (mkIf cfg.client.enable {
-      secrets = {
-        glab-cli-config = {
-          file = "${inputs.self}/secrets/glab-cli-config";
-          path = "${config.dirs.config}/glab-cli/config.yml";
-          owner = my.username;
-          inherit (config.my) group;
-        };
-        gh-hosts = {
-          file = "${inputs.self}/secrets/gh-hosts";
-          path = "${config.dirs.config}/gh/hosts.yml";
-          owner = my.username;
-          inherit (config.my) group;
-        };
-        hut = {
-          file = "${inputs.self}/secrets/hut";
-          path = "${config.dirs.config}/hut/config";
-          owner = my.username;
-          inherit (config.my) group;
-        };
-      };
-
-      hm = {
-        home.packages = with pkgs; [glab hut];
-
-        programs = {
-          git = {
-            enable = true;
-
-            package = pkgs.git.override {
-              doInstallCheck = false;
-              pythonSupport = false;
-              sendEmailSupport = true;
-              withLibsecret = false;
-              withSsh = true;
-            };
-
-            userName = my.fullname;
-            userEmail = my.email;
-            signing = {
-              inherit (my.pgp) key;
-              signByDefault = true;
-            };
-
-            extraConfig =
-              {
-                advice.detachedHead = false;
-                color.ui = true;
-                core.whitespace = "trailing-space";
-                diff = {
-                  mnemonicPrefix = true;
-                  renames = "copies";
-                  submodule = "log";
-                };
-                init.defaultBranch = "master";
-                status.submoduleSummary = true;
-                github.user = my.username;
-                gitlab.user = my.username;
-              }
-              // mapAttrs'
-              (n: v: nameValuePair ''url "git@${v}:"'' {insteadOf = "${n}:";}) {
-                "alpine" = "gitlab.alpinelinux.org";
-                "bitbucket" = "bitbucket.com";
-                "codeberg" = "codeberg.org";
-                "freedesktop" = "gitlab.freedesktop.org";
-                "github" = "github.com";
-                "gitlab" = "gitlab.com";
-                "gnome" = "gitlab.gnome.org";
-                "haskell" = "gitlab.haskell.org";
-                "kde" = "invent.kde.org";
-                "notabug" = "notabug.org";
-                "opencode" = "opencode.net";
-                "sourcehut" = "git.sr.ht";
-                "videolan" = "code.videolan.org";
-              };
+  config = mkIf cfg.client.enable {
+    hm = {
+      home.packages = with pkgs; [glab hut];
 
-            aliases = let
-              git = "${config.hm.programs.git.package}/bin/git";
-              curl = "${pkgs.curl}/bin/curl";
-            in {
-              fuck = "!${git} reset --hard && ${git} clean -fdx";
-              gud = ''commit -m "git gud"'';
-              wtc = "!${curl} -sq whatthecommit.com/index.txt | ${git} commit -F -";
-            };
+      programs = {
+        git = {
+          enable = true;
 
-            # All helper tools/editor generated files should go here. This must
-            # be kept relatively clean and void of any project-specific residual
-            # files.
-            ignores = [
-              "*~"
-              ".cache/clangd/"
-              ".ccls-cache/"
-              ".dir-locals.el"
-              ".gdb_history"
-              ".netrwhist"
-              ".projectile"
-              "[._]*.s[a-v][a-z]"
-              "[._]*.sw[a-p]"
-              "[._]s[a-rt-v][a-z]"
-              "[._]ss[a-gi-z]"
-              "[._]sw[a-p]"
-              "\#*\#"
-              "compile_commands*.json"
-              "cscope.*"
-              "vgcore.*"
-            ];
+          package = pkgs.git.override {
+            doInstallCheck = false;
+            pythonSupport = false;
+            sendEmailSupport = true;
+            withLibsecret = false;
+            withSsh = true;
           };
 
-          gh = {
-            enable = true;
-            settings.git_protocol = "ssh";
+          userName = my.fullname;
+          userEmail = my.email;
+          signing = {
+            inherit (my.pgp) key;
+            signByDefault = true;
           };
 
-          bash = {
-            shellAliases = {
-              gl = "${pkgs.glab}/bin/glab";
-              ht = "${pkgs.hut}/bin/hut";
+          extraConfig =
+            {
+              advice.detachedHead = false;
+              color.ui = true;
+              core.whitespace = "trailing-space";
+              diff = {
+                mnemonicPrefix = true;
+                renames = "copies";
+                submodule = "log";
+              };
+              init.defaultBranch = "master";
+              status.submoduleSummary = true;
+            }
+            // mapAttrs'
+            (n: v: nameValuePair ''url "git@${v}:"'' {insteadOf = "${n}:";}) {
+              "alpine" = "gitlab.alpinelinux.org";
+              "bitbucket" = "bitbucket.com";
+              "codeberg" = "codeberg.org";
+              "freedesktop" = "gitlab.freedesktop.org";
+              "github" = "github.com";
+              "gitlab" = "gitlab.com";
+              "gnome" = "gitlab.gnome.org";
+              "haskell" = "gitlab.haskell.org";
+              "kde" = "invent.kde.org";
+              "notabug" = "notabug.org";
+              "opencode" = "opencode.net";
+              "sourcehut" = "git.sr.ht";
+              "videolan" = "code.videolan.org";
             };
-            initExtra = mkAfter ''
-              _complete_alias gl __start_glab glab
-              _complete_alias ht __start_hut hut
-            '';
-          };
-        };
-      };
-    })
-    (mkIf cfg.server.enable {
-      nixfiles.modules.nginx = {
-        enable = true;
-        virtualHosts.${cfg.server.domain} = {
-          locations = {
-            "/".extraConfig = let
-              cgitrc = pkgs.writeText "cgitrc" ''
-                root-title=azahi’s git stuff
-                root-desc=鯛も一人はうまからず
-
-                about-filter=${cfg.server.package}/lib/cgit/filters/about-formatting.sh
-                source-filter=${cfg.server.package}/lib/cgit/filters/syntax-highlighting.py
-                commit-filter=${cfg.server.package}/lib/cgit/filters/commit-links.sh
-
-                enable-git-config=1
-                enable-gitweb-owner=1
-                remove-suffix=1
 
-                snapshots=tar.gz tar.bz2 zip
-
-                readme=:README
-                readme=:README.md
-                readme=:README.org
-                readme=:README.txt
-                readme=:readme
-                readme=:readme.md
-                readme=:readme.org
-                readme=:readme.txt
-
-                scan-path=${config.services.gitolite.dataDir}/repositories
-              '';
-            in ''
-              include ${config.services.nginx.package}/conf/fastcgi_params;
-              fastcgi_split_path_info ^(/?)(.+)$;
-              fastcgi_pass unix:${config.services.fcgiwrap.socketAddress};
-              fastcgi_param SCRIPT_FILENAME ${cfg.server.package}/cgit/cgit.cgi;
-              fastcgi_param CGIT_CONFIG ${cgitrc};
-              fastcgi_param PATH_INFO $uri;
-              fastcgi_param QUERY_STRING $args;
-              fastcgi_param HTTP_HOST $server_name;
-            '';
-            # FIXME This breaks sources previewing for these files.
-            "~* ^/(.+.(ico|css|png))$".extraConfig = ''
-              alias ${cfg.server.package}/cgit/$1;
-            '';
+          aliases = let
+            git = "${config.hm.programs.git.package}/bin/git";
+            curl = "${pkgs.curl}/bin/curl";
+          in {
+            fuck = "!${git} reset --hard && ${git} clean -fdx";
+            gud = ''commit -m "git gud"'';
+            wtc = "!${curl} -sq whatthecommit.com/index.txt | ${git} commit -F -";
           };
+
+          # All helper tools/editor generated files should go here. This must
+          # be kept relatively clean and void of any project-specific residual
+          # files.
+          ignores = [
+            "*~"
+            ".DS_Store"
+            ".cache/clangd/"
+            ".ccls-cache/"
+            ".dir-locals.el"
+            ".gdb_history"
+            ".netrwhist"
+            ".projectile"
+            "[._]*.s[a-v][a-z]"
+            "[._]*.sw[a-p]"
+            "[._]s[a-rt-v][a-z]"
+            "[._]ss[a-gi-z]"
+            "[._]sw[a-p]"
+            "\#*\#"
+            "compile_commands*.json"
+            "cscope.*"
+            "vgcore.*"
+          ];
         };
-      };
 
-      services = let
-        user = "git";
-        group = "git";
-      in {
-        gitolite = {
-          # TODO Make the configuration purely declarative.
+        gh = {
           enable = true;
-          inherit user group;
-          adminPubkey = my.ssh.key;
+          settings.git_protocol = "ssh";
         };
 
-        fcgiwrap = {
-          enable = true;
-          inherit user group;
+        bash = {
+          shellAliases = {
+            gl = "${pkgs.glab}/bin/glab";
+            ht = "${pkgs.hut}/bin/hut";
+          };
+          initExtra = mkAfter ''
+            _complete_alias gl __start_glab glab
+            _complete_alias ht __start_hut hut
+          '';
         };
       };
-    })
-  ];
+    };
+  };
 }
diff --git a/modules/nixfiles/gnupg.nix b/modules/nixfiles/gnupg.nix
index c1419e4..c0f10f9 100644
--- a/modules/nixfiles/gnupg.nix
+++ b/modules/nixfiles/gnupg.nix
@@ -6,83 +6,53 @@
 with lib; let
   cfg = config.nixfiles.modules.gnupg;
 in {
-  options.nixfiles.modules.gnupg = {
-    enable = mkEnableOption "GnuPG";
-
-    pinentry = mkOption {
-      description = "Name of a pinentry implementation.";
-      type = types.str;
-      default = "curses";
-    };
-  };
+  options.nixfiles.modules.gnupg.enable = mkEnableOption "GnuPG";
 
   config = mkIf cfg.enable {
-    hm = {
-      programs.gpg = {
-        enable = true;
-
-        homedir = "${config.dirs.data}/gnupg";
-
-        settings =
-          {
-            display-charset = "utf-8";
-            enable-progress-filter = true;
-            fixed-list-mode = true;
-            keyid-format = "0xlong";
-            no-comments = true;
-            no-emit-version = true;
-            no-greeting = true;
-            with-fingerprint = true;
-            throw-keyids = false;
-
-            use-agent = true;
-
-            armor = true;
-
-            no-random-seed-file = true;
-
-            list-options = "show-uid-validity";
-            verify-options = "show-uid-validity";
-          }
-          // (let
-            cipherAlgos = ["AES256" "AES192" "AES"];
-            compressionAlgos = ["ZLIB" "BZIP2" "ZIP" "Uncompressed"];
-            digestAlgos = ["SHA512" "SHA384" "SHA256" "SHA224"];
-
-            cs = concatStringsSep " ";
-          in {
-            default-preference-list =
-              cs (digestAlgos ++ cipherAlgos ++ compressionAlgos);
-
-            personal-cipher-preferences = cs cipherAlgos;
-            personal-compress-preferences = cs compressionAlgos;
-            personal-digest-preferences = cs digestAlgos;
-
-            s2k-cipher-algo = head cipherAlgos;
-            s2k-digest-algo = head digestAlgos;
-
-            digest-algo = head digestAlgos;
-            cert-digest-algo = head digestAlgos;
-          });
-      };
-
-      services.gpg-agent = {
-        enable = true;
-
-        enableSshSupport = true;
-        enableScDaemon = false;
-
-        defaultCacheTtl = 999999;
-        defaultCacheTtlSsh = 999999;
-        maxCacheTtl = 999999;
-        maxCacheTtlSsh = 999999;
-
-        grabKeyboardAndMouse = true;
-
-        sshKeys = [my.pgp.grip];
-
-        pinentryFlavor = cfg.pinentry;
-      };
+    hm.programs.gpg = {
+      enable = true;
+
+      settings =
+        {
+          display-charset = "utf-8";
+          enable-progress-filter = true;
+          fixed-list-mode = true;
+          keyid-format = "0xlong";
+          no-comments = true;
+          no-emit-version = true;
+          no-greeting = true;
+          with-fingerprint = true;
+          throw-keyids = false;
+
+          use-agent = true;
+
+          armor = true;
+
+          no-random-seed-file = true;
+
+          list-options = "show-uid-validity";
+          verify-options = "show-uid-validity";
+        }
+        // (let
+          cipherAlgos = ["AES256" "AES192" "AES"];
+          digestAlgos = ["SHA512" "SHA384" "SHA256" "SHA224"];
+          compressionAlgos = ["ZLIB" "BZIP2" "ZIP" "Uncompressed"];
+
+          cs = concatStringsSep " ";
+        in {
+          default-preference-list =
+            cs (cipherAlgos ++ digestAlgos ++ compressionAlgos);
+
+          personal-cipher-preferences = cs cipherAlgos;
+          personal-digest-preferences = cs digestAlgos;
+          personal-compress-preferences = cs compressionAlgos;
+
+          s2k-cipher-algo = head cipherAlgos;
+          s2k-digest-algo = head digestAlgos;
+
+          digest-algo = head digestAlgos;
+          cert-digest-algo = head digestAlgos;
+        });
     };
   };
 }
diff --git a/modules/nixfiles/nmap.nix b/modules/nixfiles/nmap.nix
index 14ad007..65877be 100644
--- a/modules/nixfiles/nmap.nix
+++ b/modules/nixfiles/nmap.nix
@@ -55,10 +55,5 @@ in {
         '';
       };
     };
-
-    system.extraDependencies = with inputs; [
-      nmap-vulners
-      nmap-vulscan
-    ];
   };
 }
diff --git a/modules/nixfiles/openssh.nix b/modules/nixfiles/openssh.nix
index bf470ca..4b80809 100644
--- a/modules/nixfiles/openssh.nix
+++ b/modules/nixfiles/openssh.nix
@@ -7,80 +7,52 @@
 with lib; let
   cfg = config.nixfiles.modules.openssh;
 in {
-  options.nixfiles.modules.openssh = {
-    client.enable = mkEnableOption "OpenSSH client";
-    server.enable = mkEnableOption "OpenSSH server";
+  options.nixfiles.modules.openssh.client.enable =
+    mkEnableOption "OpenSSH client";
+
+  config = mkIf cfg.client.enable {
+    hm = {
+      home.packages = with pkgs; [mosh sshfs];
+
+      programs.ssh = {
+        enable = true;
+
+        hashKnownHosts = true;
+
+        controlMaster = "auto";
+        controlPersist = "24H";
+
+        serverAliveCountMax = 30;
+        serverAliveInterval = 60;
+
+        matchBlocks = let
+          mkBlock = name: {
+            hostname ? name,
+            port ? 22022, # NOTE This is not the default OpenSSH port.
+            user ? my.username,
+            identityFile ? "${config.my.home}/.ssh/${my.username}_${my.ssh.type}",
+            extraAttrs ? {},
+          }:
+            nameValuePair name ({inherit hostname port user identityFile;}
+              // extraAttrs);
+
+          internalServers =
+            mapAttrs' mkBlock
+            (mapAttrs (name: _: {
+                hostname = "${name}.${my.domain.shire}";
+              }) (filterAttrs (_: attr:
+                hasAttr "wireguard" attr
+                && attr.isHeadless)
+              my.configurations));
+        in
+          internalServers
+          // (mapAttrs' mkBlock {
+            gitolite = {
+              user = "git";
+              hostname = "git.${my.domain.shire}";
+            };
+          });
+      };
+    };
   };
-
-  config = let
-    port = 22022; # Port 22 should be occupied by endlessh.
-  in
-    mkMerge [
-      (mkIf cfg.client.enable {
-        hm = {
-          home.packages = with pkgs; [mosh sshfs];
-
-          programs.ssh = {
-            enable = true;
-
-            hashKnownHosts = true;
-
-            controlMaster = "auto";
-            controlPersist = "24H";
-
-            serverAliveCountMax = 30;
-            serverAliveInterval = 60;
-
-            matchBlocks = let
-              mkBlock = name: {
-                hostname ? name,
-                port ? 22,
-                user ? my.username,
-                identityFile ? "${config.my.home}/.ssh/id_ed25519",
-                extraAttrs ? {},
-              }:
-                nameValuePair name ({inherit hostname port user identityFile;}
-                  // extraAttrs);
-
-              internalServers =
-                mapAttrs' mkBlock
-                (mapAttrs (name: _: {
-                    hostname = "${name}.${my.domain.shire}";
-                    inherit port;
-                  }) (filterAttrs (_: attr:
-                    hasAttr "wireguard" attr
-                    && attr.isHeadless)
-                  my.configurations));
-            in
-              internalServers
-              // (mapAttrs' mkBlock {
-                gitolite = {
-                  user = "git";
-                  hostname = "git.${my.domain.shire}";
-                  inherit port;
-                };
-              });
-          };
-        };
-      })
-      (mkIf cfg.server.enable {
-        programs.mosh.enable = true;
-
-        services = {
-          openssh = {
-            enable = true;
-            ports = [port];
-            logLevel = "VERBOSE"; # Required by fail2ban.
-            permitRootLogin = "no";
-            passwordAuthentication = false;
-          };
-
-          fail2ban.jails.sshd = ''
-            enabled = true
-            mode = aggressive
-            port = ${toString port}
-          '';
-        };
-      })
-    ];
 }
diff --git a/modules/nixfiles/password-store.nix b/modules/nixfiles/password-store.nix
index 7eac85e..1de8a55 100644
--- a/modules/nixfiles/password-store.nix
+++ b/modules/nixfiles/password-store.nix
@@ -7,7 +7,8 @@
 with lib; let
   cfg = config.nixfiles.modules.password-store;
 in {
-  options.nixfiles.modules.password-store.enable = mkEnableOption "Unix pass";
+  options.nixfiles.modules.password-store.enable =
+    mkEnableOption "the standard UNIX password manager";
 
   config = mkIf cfg.enable {
     hm.programs = {
@@ -16,7 +17,7 @@ in {
 
         package = pkgs.pass.withExtensions (p: with p; [pass-otp]);
 
-        settings.PASSWORD_STORE_DIR = "${config.dirs.data}/password-store";
+        settings.PASSWORD_STORE_DIR = "${config.my.home}/.password-store";
       };
 
       # https://github.com/NixOS/nixpkgs/issues/183604
diff --git a/modules/nixfiles/profiles/default.nix b/modules/nixfiles/profiles/default.nix
index 356413a..7d5ee8e 100644
--- a/modules/nixfiles/profiles/default.nix
+++ b/modules/nixfiles/profiles/default.nix
@@ -77,32 +77,14 @@ in {
       vim.enable = true;
     };
 
-    # home-manager.users.root.home.file.".bash_history".source =
-    #   config.hm.lib.file.mkOutOfStoreSymlink "/dev/null";
-
-    hm.home.language = {
-      collate = "C";
-      messages = "C";
-    };
-
-    programs.less = {
-      enable = true;
-      envVariables.LESSHISTFILE = "-";
-    };
+    time.timeZone = mkDefault "Europe/Moscow";
 
     environment.systemPackages = with pkgs; [
-      cryptsetup
       ddrescue
       file
       git
       gnupg
-      lshw
-      lsof
-      pciutils
-      psmisc
       tree
-      usbutils
-      util-linux
     ];
   };
 }
diff --git a/modules/nixfiles/profiles/dev/containers.nix b/modules/nixfiles/profiles/dev/containers.nix
index da7aa27..7ec6768 100644
--- a/modules/nixfiles/profiles/dev/containers.nix
+++ b/modules/nixfiles/profiles/dev/containers.nix
@@ -14,12 +14,9 @@ in {
     };
 
   config = mkIf cfg.enable {
-    nixfiles.modules.podman.enable = true;
-
     hm = {
       home = {
         sessionVariables = {
-          MINIKUBE_HOME = "${config.dirs.config}/minikube";
           MINIKUBE_IN_STYLE = "false";
           WERF_DEV = "true";
           WERF_INSECURE_REGISTRY = "true";
@@ -31,15 +28,16 @@ in {
         };
 
         packages = with pkgs; [
-          buildah
           chart-testing
           cmctl
           datree
           helm
           kubectl
           kubectx
+          kubelogin
           kubescape
           kubespy
+          lima
           minikube
           skaffold
           skopeo
@@ -49,12 +47,6 @@ in {
         ];
       };
 
-      xdg.dataFile."minikube/config/config.json".text = generators.toJSON {} {
-        config.Rootless = true;
-        driver = "podman";
-        container-runtime = "cri-o";
-      };
-
       programs.bash = {
         shellAliases = with pkgs; {
           b = "${buildah}/bin/buildah";
diff --git a/modules/nixfiles/profiles/dev/default.nix b/modules/nixfiles/profiles/dev/default.nix
index 4656ade..b05aeac 100644
--- a/modules/nixfiles/profiles/dev/default.nix
+++ b/modules/nixfiles/profiles/dev/default.nix
@@ -2,6 +2,7 @@
   config,
   lib,
   pkgs,
+  this,
   ...
 }:
 with lib; let
@@ -34,7 +35,7 @@ in {
 
         ".ghc/ghci.conf".source = ./ghci.conf;
 
-        "${config.dirs.data}/stack/config.yaml".text = generators.toYAML {} {
+        ".stack/config.yaml".text = generators.toYAML {} {
           templates.params = rec {
             author-name = my.fullname;
             author-email = my.email;
@@ -43,16 +44,14 @@ in {
           };
         };
 
-        "${config.dirs.data}/stack/global-project/stack.yaml".text = generators.toYAML {} {
+        ".stack/global-project/stack.yaml".text = generators.toYAML {} {
           packages = [];
-          resolver = "lts-19.28";
+          resolver = "lts-20.3";
         };
       };
 
       sessionVariables = with config.dirs; rec {
-        ANDROID_HOME = "${data}/android";
-
-        CABAL_DIR = "${data}/cabal";
+        CABAL_DIR = "${config.my.home}/.cabal";
         CABAL_CONFIG = pkgs.writeText "cabal-config" ''
           repository hackage.haskell.org
             url: https://hackage.haskell.org/
@@ -71,11 +70,11 @@ in {
           extra-prog-path: ${CABAL_DIR}/bin
         '';
 
-        STACK_ROOT = "${data}/stack";
+        STACK_ROOT = "${config.my.home}/.stack";
 
-        CARGO_HOME = "${data}/cargo";
+        CARGO_HOME = "${config.my.home}/.cargo";
 
-        GOPATH = "${data}/go";
+        GOPATH = "${config.my.home}/.go";
 
         PYTHONSTARTUP = ./pystartup.py;
       };
@@ -86,7 +85,5 @@ in {
         yq
       ];
     };
-
-    my.extraGroups = ["kvm"];
   };
 }
diff --git a/modules/nixfiles/profiles/dev/sql.nix b/modules/nixfiles/profiles/dev/sql.nix
index d6bcba8..7a2a09c 100644
--- a/modules/nixfiles/profiles/dev/sql.nix
+++ b/modules/nixfiles/profiles/dev/sql.nix
@@ -15,7 +15,11 @@ in {
 
   config = mkIf cfg.enable {
     hm = {
-      home.packages = with pkgs; [pgcli litecli];
+      home.packages = with pkgs; [
+        dbeaver
+        pgcli
+        litecli
+      ];
 
       xdg = let
         mainSection = {
diff --git a/modules/nixfiles/profiles/headful.nix b/modules/nixfiles/profiles/headful.nix
index f3355b6..1c1f43b 100644
--- a/modules/nixfiles/profiles/headful.nix
+++ b/modules/nixfiles/profiles/headful.nix
@@ -17,44 +17,27 @@ in {
 
       alacritty.enable = true;
       aria2.enable = true;
-      chromium.enable = true;
       emacs.enable = true;
-      firefox.enable = true;
       mpv.enable = true;
       openssh.client.enable = true;
       password-store.enable = true;
-      sound.enable = true;
-      x11.enable = true;
-
-      dwm.enable = mkDefault false;
-      kde.enable = mkDefault true;
-      xmonad.enable = mkDefault false;
     };
 
     hm = {
-      home.packages = with pkgs; [
-        # (openconnect.overrideAttrs (_: super: {
-        #   version = "unstable-2022-10-23";
-        #   src = pkgs.fetchFromGitLab {
-        #     owner = "openconnect";
-        #     repo = "openconnect";
-        #     rev = "acdfc753f7885b2a539f99036ac41ba1b78cc7ae";
-        #     hash = "sha256-ub+Z4WFD77h5YMQTb+TLc7EyY2KjBWglF1QVTirCHJM=";
-        #   };
-        #   configureFlags = super.configureFlags ++ [
-        #     "--with-external-browser=${config.hm.programs.firefox.package}/bin/firefox"
-        #   ];
-        # }))
-        calibre
-        fd
-        imv
-        neochat
-        ripgrep
-        ripgrep-all
-        sd
-        tdesktop
-        tor-browser
-      ];
+      home = {
+        file.".digrc".text = ''
+          +answer
+          +multiline
+          +recurse
+        '';
+
+        packages = with pkgs; [
+          fd
+          ripgrep
+          ripgrep-all
+          sd
+        ];
+      };
 
       accounts.email = {
         maildirBasePath = "${config.my.home}/mail";
@@ -105,54 +88,19 @@ in {
       };
 
       programs = {
-        bash.shellAliases.open = "${pkgs.xdg-utils}/bin/xdg-open";
         mbsync.enable = true;
         msmtp.enable = true;
         mu.enable = true;
       };
     };
 
-    boot = {
-      kernelPackages = mkForce pkgs.linuxPackages_xanmod_latest;
-
-      # There are (arguably) not a lot of reasons to keep mitigations enabled
-      # for on machine that is not web-facing. First of all, to completely
-      # mitigate any possible Spectre holes one would need to disable
-      # Hyperthreading altogether which will essentially put one's computer into
-      # the stone age by not being able to to effectively utilise multi-core its
-      # multicore capabilities. Secondly, by enabling mitigations, we introduce
-      # a plethora of performace overheads[1], which, albeit small, but still
-      # contribute to the overall speed of things. This is however still poses a
-      # security risk, which I am willing to take.
-      #
-      # [1]: https://www.phoronix.com/scan.php?page=article&item=spectre-meltdown-2&num=11
-      kernelParams = ["mitigations=off"];
-    };
-
-    hardware.opengl = {
-      enable = true;
-      driSupport = true;
-    };
-
-    programs = {
-      iftop.enable = true;
-      mtr.enable = true;
-      traceroute.enable = true;
-    };
-
-    services.upower.enable = true;
-
     environment.systemPackages = with pkgs; [
       arping
       dnsutils
-      ethtool
       inetutils
       ldns
-      nethogs
       socat
       tcpdump
     ];
-
-    my.extraGroups = ["audio" "video" "input"];
   };
 }
diff --git a/modules/nixfiles/profiles/headless.nix b/modules/nixfiles/profiles/headless.nix
index 520b97f..cc7c326 100644
--- a/modules/nixfiles/profiles/headless.nix
+++ b/modules/nixfiles/profiles/headless.nix
@@ -12,42 +12,12 @@ in {
     mkEnableOption "headless profile" // {default = this.isHeadless;};
 
   config = mkIf cfg.enable {
-    nixfiles.modules = {
-      openssh.server.enable = true;
-      endlessh-go.enable = true;
-
-      fail2ban.enable = true;
-
-      node-exporter.enable = true;
-      promtail.enable = true;
-    };
-
     hm.home.file = {
       ".hushlogin".text = "";
       ".bash_history".source =
         config.hm.lib.file.mkOutOfStoreSymlink "/dev/null";
     };
 
-    # Pin version to prevent any surprises.
-    boot.kernelPackages = pkgs.linuxPackages_5_15_hardened;
-
-    nix = {
-      gc = {
-        automatic = true;
-        dates = "weekly";
-        options = "--delete-older-than 30d";
-      };
-
-      optimise = {
-        automatic = true;
-        dates = ["daily"];
-      };
-    };
-
-    services.udisks2.enable = false;
-
-    xdg.sounds.enable = false;
-
     environment.systemPackages = with pkgs; [alacritty.terminfo];
   };
 }
diff --git a/modules/nixfiles/qutebrowser.nix b/modules/nixfiles/qutebrowser.nix
index 76f9f98..68a41a5 100644
--- a/modules/nixfiles/qutebrowser.nix
+++ b/modules/nixfiles/qutebrowser.nix
@@ -532,7 +532,5 @@ in {
         in
           concatStringsSep "\n" final + "\n");
     };
-
-    services.psd.enable = true;
   };
 }
diff --git a/modules/nixfiles/vscode.nix b/modules/nixfiles/vscode.nix
index 7175b36..6671973 100644
--- a/modules/nixfiles/vscode.nix
+++ b/modules/nixfiles/vscode.nix
@@ -34,16 +34,16 @@ in {
 
       extensions = with pkgs;
       with vscode-extensions;
-        [editorconfig.editorconfig file-icons.file-icons redhat.vscode-yaml]
-        ++ optional cfg.vim.enable vscodevim.vim
-        ++ vscode-utils.extensionsFromVscodeMarketplace [
-          {
-            name = "vscode-xml";
-            publisher = "redhat";
-            version = "0.20.0";
-            hash = "sha256-GKBrf9s8n7Wv14RSfwyDma1dM0fGMvRkU/7v2DAcB9A=";
-          }
-        ];
+        [
+          editorconfig.editorconfig
+          file-icons.file-icons
+          gitlab.gitlab-workflow
+          ms-kubernetes-tools.vscode-kubernetes-tools
+          redhat.vscode-xml
+          redhat.vscode-yaml
+          streetsidesoftware.code-spell-checker
+        ]
+        ++ optional cfg.vim.enable vscodevim.vim;
 
       userSettings = let
         font = config.fontScheme.monospaceFont;
@@ -61,7 +61,7 @@ in {
             renderWhitespace = "trailing";
             rulers = [80 120];
             smoothScrolling = false;
-            tabCompletion = true;
+            tabCompletion = "on";
           }
           // (let
             surround = 10;
@@ -160,11 +160,6 @@ in {
             leader = " ";
 
             useSystemClipboard = true;
-
-            autoSwitchInputMethod = let
-              inputMethod = config.i18n.inputMethod.enabled;
-            in
-              mkIf (inputMethod != null) applyInputMethod.${inputMethod};
           };
       };
     };
diff --git a/modules/nixfiles/wget.nix b/modules/nixfiles/wget.nix
index 6d7b1b2..9a16fcc 100644
--- a/modules/nixfiles/wget.nix
+++ b/modules/nixfiles/wget.nix
@@ -11,7 +11,7 @@ in {
 
   config = mkIf cfg.enable {
     hm = {
-      programs.bash.shellAliases.wget = "${pkgs.wget}/bin/wget --hsts-file=${config.dirs.data}/wget-hsts";
+      programs.bash.shellAliases.wget = "${pkgs.wget}/bin/wget --hsts-file=/tmp/wget-hsts";
 
       home.sessionVariables.WGETRC = pkgs.writeText "wgetrc" ''
         adjust_extension = on
diff --git a/modules/nixfiles/acme.nix b/modules/nixos/acme.nix
index d3ad661..d3ad661 100644
--- a/modules/nixfiles/acme.nix
+++ b/modules/nixos/acme.nix
diff --git a/modules/nixfiles/alertmanager.nix b/modules/nixos/alertmanager.nix
index 871b0c4..871b0c4 100644
--- a/modules/nixfiles/alertmanager.nix
+++ b/modules/nixos/alertmanager.nix
diff --git a/modules/nixfiles/android.nix b/modules/nixos/android.nix
index 307490a..307490a 100644
--- a/modules/nixfiles/android.nix
+++ b/modules/nixos/android.nix
diff --git a/modules/nixfiles/bluetooth.nix b/modules/nixos/bluetooth.nix
index 8347361..8347361 100644
--- a/modules/nixfiles/bluetooth.nix
+++ b/modules/nixos/bluetooth.nix
diff --git a/modules/nixfiles/common/console.nix b/modules/nixos/common/console.nix
index 3c73695..3c73695 100644
--- a/modules/nixfiles/common/console.nix
+++ b/modules/nixos/common/console.nix
diff --git a/modules/nixos/common/default.nix b/modules/nixos/common/default.nix
new file mode 100644
index 0000000..8724c8b
--- /dev/null
+++ b/modules/nixos/common/default.nix
@@ -0,0 +1,19 @@
+_: {
+  imports = [
+    ./console.nix
+    ./documentation.nix
+    ./home-manager.nix
+    ./kernel.nix
+    ./locale.nix
+    ./networking.nix
+    ./nix.nix
+    ./secrets.nix
+    ./security.nix
+    ./services.nix
+    ./shell.nix
+    ./systemd.nix
+    ./tmp.nix
+    ./users.nix
+    ./xdg.nix
+  ];
+}
diff --git a/modules/nixos/common/documentation.nix b/modules/nixos/common/documentation.nix
new file mode 100644
index 0000000..f909108
--- /dev/null
+++ b/modules/nixos/common/documentation.nix
@@ -0,0 +1,31 @@
+{
+  config,
+  lib,
+  pkgs,
+  this,
+  ...
+}:
+with lib; {
+  config = mkIf this.isHeadful {
+    documentation = {
+      dev.enable = true;
+      nixos.enable = true;
+
+      man.man-db.manualPages =
+        (pkgs.buildEnv {
+          name = "man-paths";
+          paths = with config;
+            environment.systemPackages ++ hm.home.packages;
+          pathsToLink = ["/share/man"];
+          extraOutputsToInstall = ["man"];
+          ignoreCollisions = true;
+        })
+        .overrideAttrs (_: _: {__contentAddressed = true;});
+    };
+
+    environment.sessionVariables = {
+      MANOPT = "--no-hyphenation";
+      MANPAGER = "${pkgs.less}/bin/less -+F";
+    };
+  };
+}
diff --git a/modules/nixos/common/home-manager.nix b/modules/nixos/common/home-manager.nix
new file mode 100644
index 0000000..52f2fd3
--- /dev/null
+++ b/modules/nixos/common/home-manager.nix
@@ -0,0 +1,3 @@
+{inputs, ...}: {
+  imports = [inputs.home-manager.nixosModule];
+}
diff --git a/modules/nixfiles/common/kernel.nix b/modules/nixos/common/kernel.nix
index 2fdfeeb..2fc40f9 100644
--- a/modules/nixfiles/common/kernel.nix
+++ b/modules/nixos/common/kernel.nix
@@ -1,7 +1,10 @@
 {lib, ...}:
 with lib; {
   boot = {
-    # I don't use it even on laptops.
+    # I don't use it even on laptops. It's also /required/ to disable it for
+    # ZFS[1].
+    # [1]: https://github.com/openzfs/zfs/issues/260
+    # [1]: https://github.com/openzfs/zfs/issues/12842
     kernelParams = ["hibernate=no"];
 
     kernel.sysctl = {
@@ -30,4 +33,7 @@ with lib; {
       "vm.vfs_cache_pressure" = 50;
     };
   };
+
+  # https://docs.kernel.org/admin-guide/mm/ksm.html
+  hardware.ksm.enable = true;
 }
diff --git a/modules/nixos/common/locale.nix b/modules/nixos/common/locale.nix
new file mode 100644
index 0000000..62d19f4
--- /dev/null
+++ b/modules/nixos/common/locale.nix
@@ -0,0 +1,24 @@
+{lib, ...}:
+with lib; {
+  i18n = {
+    defaultLocale = mkDefault "en_GB.UTF-8";
+    supportedLocales = [
+      "C.UTF-8/UTF-8"
+      "en_GB.UTF-8/UTF-8"
+      "en_US.UTF-8/UTF-8"
+      "ja_JP.UTF-8/UTF-8"
+      "ru_RU.UTF-8/UTF-8"
+    ];
+  };
+
+  services.xserver = {
+    layout = comcat ["us" "ru"];
+    xkbVariant = comcat ["" "phonetic"];
+    xkbOptions = comcat [
+      "terminate:ctrl_alt_bksp"
+      "caps:escape"
+      "compose:menu"
+      "grp:win_space_toggle"
+    ];
+  };
+}
diff --git a/modules/nixos/common/networking.nix b/modules/nixos/common/networking.nix
new file mode 100644
index 0000000..6109933
--- /dev/null
+++ b/modules/nixos/common/networking.nix
@@ -0,0 +1,108 @@
+{
+  config,
+  lib,
+  pkgs,
+  this,
+  ...
+}:
+with lib; {
+  # TODO Support multiple interfaces and IP addresses.
+  networking = mkMerge [
+    {
+      domain = my.domain.shire;
+
+      hostName = this.hostname;
+      hostId = substring 0 8 (builtins.hashString "md5" this.hostname);
+
+      # Remove default hostname mappings. This is required at least by the current
+      # implementation of the montoring module.
+      hosts = {
+        "127.0.0.2" = mkForce [];
+        "::1" = mkForce [];
+      };
+
+      nameservers = mkDefault dns.const.quad9.default;
+
+      useDHCP = false;
+
+      firewall = {
+        enable = true;
+
+        rejectPackets = false;
+
+        allowPing = true;
+        pingLimit = "--limit 1/minute --limit-burst 5";
+
+        logRefusedConnections = false;
+        logRefusedPackets = false;
+        logRefusedUnicastsOnly = false;
+        logReversePathDrops = false;
+      };
+    }
+    (let
+      interface = "eth0"; # This assumes `usePredictableInterfaceNames` is false.
+    in
+      mkIf (hasAttr "ipv4" this && hasAttr "ipv6" this) {
+        usePredictableInterfaceNames = false; # NOTE This can break something!
+        interfaces.${interface} = {
+          ipv4.addresses = with this.ipv4;
+            optional (isString address && isInt prefixLength) {
+              inherit address prefixLength;
+            };
+
+          ipv6.addresses = with this.ipv6;
+            optional (isString address && isInt prefixLength) {
+              inherit address prefixLength;
+            };
+        };
+        defaultGateway = with this.ipv4;
+          mkIf (isString gatewayAddress) {
+            inherit interface;
+            address = gatewayAddress;
+          };
+        defaultGateway6 = with this.ipv6;
+          mkIf (isString gatewayAddress) {
+            inherit interface;
+            address = gatewayAddress;
+          };
+      })
+    (mkIf this.isHeadful {
+      interfaces = {
+        eth0.useDHCP = mkDefault true;
+        wlan0.useDHCP = mkDefault true;
+      };
+
+      networkmanager = {
+        enable = mkDefault true;
+        wifi.backend = "iwd";
+      };
+
+      wireless = {
+        enable = false;
+        iwd.enable = mkDefault true;
+        userControlled.enable = true;
+        allowAuxiliaryImperativeNetworks = true;
+      };
+    })
+  ];
+
+  environment.shellAliases = listToAttrs (map
+    ({
+      name,
+      value,
+    }:
+      nameValuePair name "${pkgs.iproute2}/bin/${value}") [
+      {
+        name = "bridge";
+        value = "bridge -color=always";
+      }
+      {
+        name = "ip";
+        value = "ip -color=always";
+      }
+      {
+        name = "tc";
+        value = "tc -color=always";
+      }
+    ]);
+}
diff --git a/modules/nixos/common/nix.nix b/modules/nixos/common/nix.nix
new file mode 100644
index 0000000..07136a0
--- /dev/null
+++ b/modules/nixos/common/nix.nix
@@ -0,0 +1,39 @@
+{
+  config,
+  inputs,
+  lib,
+  this,
+  ...
+}:
+with lib; let
+  cfg = config.nixfiles.modules.common.nix;
+in {
+  options.nixfiles.modules.common.nix.allowedUnfreePackages = mkOption {
+    description = "A list of allowed unfree packages.";
+    type = with types; listOf str;
+    default = [];
+  };
+
+  config = {
+    nix.settings.trusted-users = ["@wheel"];
+
+    nixpkgs = {
+      config.allowUnfreePredicate = p: elem (getName p) cfg.allowedUnfreePackages;
+
+      overlays = with inputs; [
+        agenix.overlay
+        # nix-minecraft-servers.overlays.default
+        xmonad-ng.overlays.default
+      ];
+    };
+
+    system.stateVersion = with builtins;
+      head (split "\n" (readFile "${inputs.nixpkgs}/.version"));
+
+    environment = {
+      sessionVariables.NIX_SHELL_PRESERVE_PROMPT = "1";
+      localBinInPath = true;
+      defaultPackages = [];
+    };
+  };
+}
diff --git a/modules/nixfiles/common/secrets.nix b/modules/nixos/common/secrets.nix
index 9e59716..4fcdc61 100644
--- a/modules/nixfiles/common/secrets.nix
+++ b/modules/nixos/common/secrets.nix
@@ -41,7 +41,5 @@ with lib; {
     };
 
     environment.systemPackages = with pkgs; [agenix];
-
-    system.extraDependencies = [inputs.agenix];
   };
 }
diff --git a/modules/nixfiles/common/security.nix b/modules/nixos/common/security.nix
index 09c5da1..09c5da1 100644
--- a/modules/nixfiles/common/security.nix
+++ b/modules/nixos/common/security.nix
diff --git a/modules/nixos/common/services.nix b/modules/nixos/common/services.nix
new file mode 100644
index 0000000..725502a
--- /dev/null
+++ b/modules/nixos/common/services.nix
@@ -0,0 +1,10 @@
+_: {
+  services = {
+    # https://github.com/Irqbalance/irqbalance/issues/54#issuecomment-319245584
+    # https://unix.stackexchange.com/questions/710603/should-the-irqbalance-daemon-be-used-on-a-modern-desktop-x86-system
+    irqbalance.enable = true;
+
+    # https://github.com/NixOS/nixpkgs/issues/135888
+    nscd.enableNsncd = true;
+  };
+}
diff --git a/modules/nixos/common/shell.nix b/modules/nixos/common/shell.nix
new file mode 100644
index 0000000..5fbc441
--- /dev/null
+++ b/modules/nixos/common/shell.nix
@@ -0,0 +1,3 @@
+_: {
+  programs.command-not-found.enable = false;
+}
diff --git a/modules/nixfiles/common/systemd.nix b/modules/nixos/common/systemd.nix
index 5c7282d..5c7282d 100644
--- a/modules/nixfiles/common/systemd.nix
+++ b/modules/nixos/common/systemd.nix
diff --git a/modules/nixfiles/common/tmp.nix b/modules/nixos/common/tmp.nix
index d56e2b6..d56e2b6 100644
--- a/modules/nixfiles/common/tmp.nix
+++ b/modules/nixos/common/tmp.nix
diff --git a/modules/nixos/common/users.nix b/modules/nixos/common/users.nix
new file mode 100644
index 0000000..22e8023
--- /dev/null
+++ b/modules/nixos/common/users.nix
@@ -0,0 +1,19 @@
+{lib, ...}:
+with lib; {
+  users = {
+    mutableUsers = false;
+
+    users = {
+      root.hashedPassword = "@HASHED_PASSWORD@";
+
+      ${my.username} = {
+        isNormalUser = true;
+        uid = 1000;
+        description = my.fullname;
+        inherit (my) hashedPassword;
+        openssh.authorizedKeys.keys = [my.ssh.key];
+        extraGroups = ["wheel"];
+      };
+    };
+  };
+}
diff --git a/modules/nixfiles/common/xdg.nix b/modules/nixos/common/xdg.nix
index 8ddf1ac..8ddf1ac 100644
--- a/modules/nixfiles/common/xdg.nix
+++ b/modules/nixos/common/xdg.nix
diff --git a/modules/nixos/default.nix b/modules/nixos/default.nix
new file mode 100644
index 0000000..b35e461
--- /dev/null
+++ b/modules/nixos/default.nix
@@ -0,0 +1,59 @@
+_: {
+  imports = [
+    ./acme.nix
+    ./alertmanager.nix
+    ./android.nix
+    ./bluetooth.nix
+    ./common
+    ./discord.nix
+    ./docker.nix
+    ./dwm.nix
+    ./emacs.nix
+    ./endlessh-go.nix
+    ./endlessh.nix
+    ./fail2ban.nix
+    ./fonts.nix
+    ./games
+    ./git.nix
+    ./gnupg.nix
+    ./gotify.nix
+    ./grafana.nix
+    ./hydra.nix
+    ./ipfs.nix
+    ./kde.nix
+    ./libvirtd.nix
+    ./lidarr.nix
+    ./loki.nix
+    ./lxc.nix
+    ./matrix
+    ./monitoring
+    ./nextcloud.nix
+    ./nginx.nix
+    ./node-exporter.nix
+    ./nsd.nix
+    ./openssh.nix
+    ./podman.nix
+    ./postgresql.nix
+    ./profiles
+    ./prometheus.nix
+    ./promtail.nix
+    ./psd.nix
+    ./radarr.nix
+    ./radicale.nix
+    ./rss-bridge.nix
+    ./rtorrent.nix
+    ./searx.nix
+    ./shadowsocks.nix
+    ./soju.nix
+    ./solaar.nix
+    ./sonarr.nix
+    ./sound.nix
+    ./syncthing.nix
+    ./throttled.nix
+    ./unbound.nix
+    ./vaultwarden.nix
+    ./wireguard.nix
+    ./x11.nix
+    ./xmonad.nix
+  ];
+}
diff --git a/modules/nixos/discord.nix b/modules/nixos/discord.nix
new file mode 100644
index 0000000..190b5fc
--- /dev/null
+++ b/modules/nixos/discord.nix
@@ -0,0 +1,22 @@
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}:
+with lib; let
+  cfg = config.nixfiles.modules.discord;
+in {
+  options.nixfiles.modules.discord.enable =
+    mkEnableOption "Steam runtime";
+
+  config = mkIf cfg.enable {
+    nixfiles.modules.common.nix.allowedUnfreePackages = ["discord"];
+
+    hm.home.packages = with pkgs; [
+      (discord.override {
+        withOpenASAR = true;
+      })
+    ];
+  };
+}
diff --git a/modules/nixfiles/docker.nix b/modules/nixos/docker.nix
index e642030..e642030 100644
--- a/modules/nixfiles/docker.nix
+++ b/modules/nixos/docker.nix
diff --git a/modules/nixfiles/dwm.nix b/modules/nixos/dwm.nix
index 618d8ed..618d8ed 100644
--- a/modules/nixfiles/dwm.nix
+++ b/modules/nixos/dwm.nix
diff --git a/modules/nixos/emacs.nix b/modules/nixos/emacs.nix
new file mode 100644
index 0000000..800d411
--- /dev/null
+++ b/modules/nixos/emacs.nix
@@ -0,0 +1,30 @@
+{
+  config,
+  inputs,
+  lib,
+  ...
+}:
+with lib; let
+  cfg = config.nixfiles.modules.emacs;
+in {
+  config = mkIf cfg.enable {
+    secrets.authinfo = {
+      file = "${inputs.self}/secrets/authinfo";
+      owner = my.username;
+      inherit (config.my) group;
+    };
+
+    nixfiles.modules.x11.enable = true;
+
+    hm = {
+      programs.doom-emacs.extraConfig = ''
+        (appendq! auth-sources '("${config.secrets.authinfo.path}"))
+      '';
+
+      services.emacs = {
+        enable = true;
+        client.enable = true;
+      };
+    };
+  };
+}
diff --git a/modules/nixfiles/endlessh-go.nix b/modules/nixos/endlessh-go.nix
index 9ceb4e4..435305d 100644
--- a/modules/nixfiles/endlessh-go.nix
+++ b/modules/nixos/endlessh-go.nix
@@ -1,8 +1,6 @@
 {
   config,
-  inputs,
   lib,
-  pkgs,
   this,
   ...
 }:
diff --git a/modules/nixos/endlessh.nix b/modules/nixos/endlessh.nix
new file mode 100644
index 0000000..67789fd
--- /dev/null
+++ b/modules/nixos/endlessh.nix
@@ -0,0 +1,24 @@
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}:
+with lib; let
+  cfg = config.nixfiles.modules.endlessh;
+in {
+  options.nixfiles.modules.endlessh.enable = mkEnableOption "endlessh";
+
+  config = let
+    port = 22;
+  in
+    mkIf cfg.enable {
+      services.endlessh = {
+        enable = true;
+        inherit port;
+        extraOptions = ["-v" "-4"];
+      };
+
+      networking.firewall.allowedTCPPorts = [port];
+    };
+}
diff --git a/modules/nixfiles/fail2ban.nix b/modules/nixos/fail2ban.nix
index 5ac3c9c..5ac3c9c 100644
--- a/modules/nixfiles/fail2ban.nix
+++ b/modules/nixos/fail2ban.nix
diff --git a/modules/nixos/fonts.nix b/modules/nixos/fonts.nix
new file mode 100644
index 0000000..d4a7330
--- /dev/null
+++ b/modules/nixos/fonts.nix
@@ -0,0 +1,45 @@
+{
+  config,
+  lib,
+  ...
+}:
+with lib; let
+  cfg = config.nixfiles.modules.fonts;
+in {
+  config = mkMerge [
+    (mkIf cfg.enable {
+      hm.fonts.fontconfig.enable = true;
+      fonts.fontconfig = {
+        enable = true;
+
+        defaultFonts = {
+          monospace = [
+            "Iosevka"
+            "Sarasa Mono K"
+            "Sarasa Mono J"
+            "Sarasa Mono SC"
+            "Sarasa Mono CL"
+          ];
+          sansSerif = [
+            "Iosevka Aile"
+            "Sarasa Gothic K"
+            "Sarasa Gothic J"
+            "Sarasa Gothic SC"
+            "Sarasa Gothic CL"
+          ];
+          serif = [
+            "Iosevka Etoile"
+            "Sarasa Gothic K"
+            "Sarasa Gothic J"
+            "Sarasa Gothic SC"
+            "Sarasa Gothic CL"
+          ];
+        };
+      };
+    })
+    (mkIf (!cfg.enable) {
+      hm.fonts.fontconfig.enable = false;
+      fonts.fontconfig.enable = false;
+    })
+  ];
+}
diff --git a/modules/nixfiles/games/default.nix b/modules/nixos/games/default.nix
index 1c5766b..1c5766b 100644
--- a/modules/nixfiles/games/default.nix
+++ b/modules/nixos/games/default.nix
diff --git a/modules/nixfiles/games/gamemode.nix b/modules/nixos/games/gamemode.nix
index 051d12e..051d12e 100644
--- a/modules/nixfiles/games/gamemode.nix
+++ b/modules/nixos/games/gamemode.nix
diff --git a/modules/nixfiles/games/gog.nix b/modules/nixos/games/gog.nix
index 86039f1..86039f1 100644
--- a/modules/nixfiles/games/gog.nix
+++ b/modules/nixos/games/gog.nix
diff --git a/modules/nixfiles/games/lutris.nix b/modules/nixos/games/lutris.nix
index e7faef3..72179fc 100644
--- a/modules/nixfiles/games/lutris.nix
+++ b/modules/nixos/games/lutris.nix
@@ -16,20 +16,17 @@ in {
       steam-run.enable = true;
     };
 
-    # This removes the annoying warning.
-    boot.kernel.sysctl."dev.i915.perf_stream_paranoid" = 0;
-
     hm.home.packages = with pkgs; [
       (lutris.override {
         lutris-unwrapped = lutris-unwrapped.override {
           wine = buildFHSUserEnv {
-            # We don't really need Wine because Lutris downloads the required
+            # We don't really need Wine because Lutris downloads a required
             # runtime for us.
             name = "empty";
           };
         };
-        steamSupport = false;
       })
+      vkBasalt
     ];
   };
 }
diff --git a/modules/nixfiles/games/mangohud.nix b/modules/nixos/games/mangohud.nix
index b521687..d693c82 100644
--- a/modules/nixfiles/games/mangohud.nix
+++ b/modules/nixos/games/mangohud.nix
@@ -13,13 +13,13 @@ in {
       enable = true;
       settings = {
         fps = true;
+        frame_timing = true;
         gpu_stats = true;
         gpu_temp = true;
         cpu_stats = true;
         cpu_temp = true;
-      };
-      settingsPerApplication = {
-        mpv.no_display = true;
+        ram = true;
+        vram = true;
       };
     };
   };
diff --git a/modules/nixfiles/games/minecraft.nix b/modules/nixos/games/minecraft.nix
index 47279f8..e53f9eb 100644
--- a/modules/nixfiles/games/minecraft.nix
+++ b/modules/nixos/games/minecraft.nix
@@ -23,8 +23,6 @@ in {
   config = mkMerge [
     (mkIf cfg.client.enable {
       hm.home.packages = with pkgs; [pollymc];
-
-      system.extraDependencies = [inputs.pollymc];
     })
     (mkIf cfg.server.enable {
       # Configurations, opslist, whitelist and plugins are managed imperatively.
@@ -47,8 +45,6 @@ in {
 
       # Defined in /var/lib/minecraft/server.properties.
       networking.firewall.allowedTCPPorts = [55565];
-
-      system.extraDependencies = [inputs.nix-minecraft-servers];
     })
   ];
 }
diff --git a/modules/nixfiles/games/steam-run.nix b/modules/nixos/games/steam-run.nix
index 4731fd6..1a1e61f 100644
--- a/modules/nixfiles/games/steam-run.nix
+++ b/modules/nixos/games/steam-run.nix
@@ -11,12 +11,15 @@ in {
     enable = mkEnableOption "native Steam runtime";
 
     quirks = {
-      mountandblade = mkEnableOption ''fixes for "Mount & Blade: Warband" issues'';
+      mountAndBladeWarband = mkEnableOption ''fixes for "Mount & Blade: Warband" issues'';
+      cryptOfTheNecrodancer = mkEnableOption ''fixes for "Crypt of the NecroDancer" issues'';
     };
   };
 
   config = mkIf cfg.enable {
     nixfiles.modules = {
+      common.nix.allowedUnfreePackages = ["steam" "steam-run"];
+
       games = {
         enable32BitSupport = true;
         gamemode.enable = true;
@@ -27,11 +30,12 @@ in {
       (steam.override {
         extraLibraries = _:
           with cfg.quirks;
-            optionals mountandblade [
+            []
+            ++ optionals mountAndBladeWarband [
               (glew.overrideAttrs (_: super: let
                 opname = super.pname;
               in rec {
-                pname = "${opname}-mbw";
+                pname = "${opname}-runfix";
                 inherit (super) version;
                 src = fetchurl {
                   url = "mirror://sourceforge/${opname}/${opname}-${version}.tgz";
@@ -41,7 +45,7 @@ in {
               (fmodex.overrideAttrs (_: super: let
                 opname = super.pname;
               in rec {
-                pname = "${opname}-mbw";
+                pname = "${opname}-runfix";
                 inherit (super) version;
                 installPhase = let
                   libPath = makeLibraryPath [
@@ -54,16 +58,16 @@ in {
                   patchelf --set-rpath ${libPath} $out/lib/libfmodex64.so
                 '';
               }))
+            ]
+            ++ optionals cryptOfTheNecrodancer [
+              (import (builtins.fetchTarball {
+                url = "https://github.com/NixOS/nixpkgs/archive/d1c3fea7ecbed758168787fe4e4a3157e52bc808.tar.gz";
+                sha256 = "0ykm15a690v8lcqf2j899za3j6hak1rm3xixdxsx33nz7n3swsyy";
+              }) {inherit (config.nixpkgs) config localSystem;})
+              .flac
             ];
       })
       .run
     ];
-
-    nixpkgs.config.allowUnfreePredicate = p:
-      elem (getName p) [
-        "steam"
-        "steam-original"
-        "steam-run"
-      ];
   };
 }
diff --git a/modules/nixfiles/games/steam.nix b/modules/nixos/games/steam.nix
index bbd01f6..8dfa72c 100644
--- a/modules/nixfiles/games/steam.nix
+++ b/modules/nixos/games/steam.nix
@@ -11,18 +11,15 @@ in {
     mkEnableOption "Steam runtime";
 
   config = mkIf cfg.enable {
-    nixfiles.modules.games = {
-      enable32BitSupport = true;
-      gamemode.enable = true;
+    nixfiles.modules = {
+      common.nix.allowedUnfreePackages = ["steam" "steam-original"];
+
+      games = {
+        enable32BitSupport = true;
+        gamemode.enable = true;
+      };
     };
 
     hm.home.packages = with pkgs; [steam];
-
-    nixpkgs.config.allowUnfreePredicate = p:
-      elem (getName p) [
-        "steam"
-        "steam-original"
-        "steam-run"
-      ];
   };
 }
diff --git a/modules/nixos/git.nix b/modules/nixos/git.nix
new file mode 100644
index 0000000..f754588
--- /dev/null
+++ b/modules/nixos/git.nix
@@ -0,0 +1,117 @@
+{
+  config,
+  lib,
+  inputs,
+  pkgs,
+  ...
+}:
+with lib; let
+  cfg = config.nixfiles.modules.git;
+in {
+  options.nixfiles.modules.git.server = {
+    enable = mkEnableOption "Git server";
+
+    domain = mkOption {
+      description = "Domain name sans protocol scheme.";
+      type = with types; nullOr str;
+      default = "git.${config.networking.domain}";
+    };
+
+    package = mkOption {
+      description = "Package.";
+      type = types.package;
+      default = pkgs.cgit-pink;
+    };
+  };
+
+  config = mkMerge [
+    (mkIf cfg.client.enable {
+      secrets = {
+        glab-cli-config = {
+          file = "${inputs.self}/secrets/glab-cli-config";
+          path = "${config.dirs.config}/glab-cli/config.yml";
+          owner = my.username;
+          inherit (config.my) group;
+        };
+        gh-hosts = {
+          file = "${inputs.self}/secrets/gh-hosts";
+          path = "${config.dirs.config}/gh/hosts.yml";
+          owner = my.username;
+          inherit (config.my) group;
+        };
+        hut = {
+          file = "${inputs.self}/secrets/hut";
+          path = "${config.dirs.config}/hut/config";
+          owner = my.username;
+          inherit (config.my) group;
+        };
+      };
+    })
+    (mkIf cfg.server.enable {
+      nixfiles.modules.nginx = {
+        enable = true;
+        virtualHosts.${cfg.server.domain} = {
+          locations = {
+            "/".extraConfig = let
+              cgitrc = pkgs.writeText "cgitrc" ''
+                root-title=azahi’s git stuff
+                root-desc=鯛も一人はうまからず
+
+                about-filter=${cfg.server.package}/lib/cgit/filters/about-formatting.sh
+                source-filter=${cfg.server.package}/lib/cgit/filters/syntax-highlighting.py
+                commit-filter=${cfg.server.package}/lib/cgit/filters/commit-links.sh
+
+                enable-git-config=1
+                enable-gitweb-owner=1
+                remove-suffix=1
+
+                snapshots=tar.gz tar.bz2 zip
+
+                readme=:README
+                readme=:README.md
+                readme=:README.org
+                readme=:README.txt
+                readme=:readme
+                readme=:readme.md
+                readme=:readme.org
+                readme=:readme.txt
+
+                scan-path=${config.services.gitolite.dataDir}/repositories
+              '';
+            in ''
+              include ${config.services.nginx.package}/conf/fastcgi_params;
+              fastcgi_split_path_info ^(/?)(.+)$;
+              fastcgi_pass unix:${config.services.fcgiwrap.socketAddress};
+              fastcgi_param SCRIPT_FILENAME ${cfg.server.package}/cgit/cgit.cgi;
+              fastcgi_param CGIT_CONFIG ${cgitrc};
+              fastcgi_param PATH_INFO $uri;
+              fastcgi_param QUERY_STRING $args;
+              fastcgi_param HTTP_HOST $server_name;
+            '';
+            # FIXME This breaks sources previewing for these files.
+            "~* ^/(.+.(ico|css|png))$".extraConfig = ''
+              alias ${cfg.server.package}/cgit/$1;
+            '';
+          };
+        };
+      };
+
+      services = let
+        user = "git";
+        group = "git";
+      in {
+        gitolite = {
+          # TODO Make the configuration purely declarative.
+          enable = true;
+          inherit user group;
+          adminPubkey = my.ssh.key;
+        };
+
+        fcgiwrap = {
+          enable = true;
+          inherit user group;
+        };
+      };
+    })
+  ];
+}
diff --git a/modules/nixos/gnupg.nix b/modules/nixos/gnupg.nix
new file mode 100644
index 0000000..b86be9b
--- /dev/null
+++ b/modules/nixos/gnupg.nix
@@ -0,0 +1,38 @@
+{
+  config,
+  lib,
+  ...
+}:
+with lib; let
+  cfg = config.nixfiles.modules.gnupg;
+in {
+  options.nixfiles.modules.gnupg.pinentry = mkOption {
+    description = "Name of a pinentry implementation.";
+    type = types.str;
+    default = "curses";
+  };
+
+  config = mkIf cfg.enable {
+    hm = {
+      programs.gpg.homedir = "${config.dirs.data}/gnupg";
+
+      services.gpg-agent = {
+        enable = true;
+
+        enableSshSupport = true;
+        enableScDaemon = false;
+
+        defaultCacheTtl = 999999;
+        defaultCacheTtlSsh = 999999;
+        maxCacheTtl = 999999;
+        maxCacheTtlSsh = 999999;
+
+        grabKeyboardAndMouse = true;
+
+        sshKeys = [my.pgp.grip];
+
+        pinentryFlavor = cfg.pinentry;
+      };
+    };
+  };
+}
diff --git a/modules/nixfiles/gotify.nix b/modules/nixos/gotify.nix
index db47bb4..db47bb4 100644
--- a/modules/nixfiles/gotify.nix
+++ b/modules/nixos/gotify.nix
diff --git a/modules/nixfiles/grafana.nix b/modules/nixos/grafana.nix
index a614502..a614502 100644
--- a/modules/nixfiles/grafana.nix
+++ b/modules/nixos/grafana.nix
diff --git a/modules/nixfiles/hydra.nix b/modules/nixos/hydra.nix
index 590fecb..590fecb 100644
--- a/modules/nixfiles/hydra.nix
+++ b/modules/nixos/hydra.nix
diff --git a/modules/nixfiles/ipfs.nix b/modules/nixos/ipfs.nix
index 0ec64e5..0ec64e5 100644
--- a/modules/nixfiles/ipfs.nix
+++ b/modules/nixos/ipfs.nix
diff --git a/modules/nixfiles/kde.nix b/modules/nixos/kde.nix
index a430294..a430294 100644
--- a/modules/nixfiles/kde.nix
+++ b/modules/nixos/kde.nix
diff --git a/modules/nixfiles/libvirtd.nix b/modules/nixos/libvirtd.nix
index ae8b336..ae8b336 100644
--- a/modules/nixfiles/libvirtd.nix
+++ b/modules/nixos/libvirtd.nix
diff --git a/modules/nixfiles/lidarr.nix b/modules/nixos/lidarr.nix
index f73f917..f73f917 100644
--- a/modules/nixfiles/lidarr.nix
+++ b/modules/nixos/lidarr.nix
diff --git a/modules/nixfiles/loki.nix b/modules/nixos/loki.nix
index 1582164..1582164 100644
--- a/modules/nixfiles/loki.nix
+++ b/modules/nixos/loki.nix
diff --git a/modules/nixfiles/lxc.nix b/modules/nixos/lxc.nix
index 4f7805f..4f7805f 100644
--- a/modules/nixfiles/lxc.nix
+++ b/modules/nixos/lxc.nix
diff --git a/modules/nixfiles/matrix/default.nix b/modules/nixos/matrix/default.nix
index bd221c4..bd221c4 100644
--- a/modules/nixfiles/matrix/default.nix
+++ b/modules/nixos/matrix/default.nix
diff --git a/modules/nixfiles/matrix/dendrite.nix b/modules/nixos/matrix/dendrite.nix
index 0fad5f2..0fad5f2 100644
--- a/modules/nixfiles/matrix/dendrite.nix
+++ b/modules/nixos/matrix/dendrite.nix
diff --git a/modules/nixfiles/matrix/element.nix b/modules/nixos/matrix/element.nix
index 3d47800..3d47800 100644
--- a/modules/nixfiles/matrix/element.nix
+++ b/modules/nixos/matrix/element.nix
diff --git a/modules/nixfiles/matrix/synapse.nix b/modules/nixos/matrix/synapse.nix
index 6ff5e0d..6ff5e0d 100644
--- a/modules/nixfiles/matrix/synapse.nix
+++ b/modules/nixos/matrix/synapse.nix
diff --git a/modules/nixfiles/monitoring/dashboards/endlessh.json b/modules/nixos/monitoring/dashboards/endlessh.json
index 0b47ee2..0b47ee2 100644
--- a/modules/nixfiles/monitoring/dashboards/endlessh.json
+++ b/modules/nixos/monitoring/dashboards/endlessh.json
diff --git a/modules/nixfiles/monitoring/dashboards/nginx.json b/modules/nixos/monitoring/dashboards/nginx.json
index b2cc499..b2cc499 100644
--- a/modules/nixfiles/monitoring/dashboards/nginx.json
+++ b/modules/nixos/monitoring/dashboards/nginx.json
diff --git a/modules/nixfiles/monitoring/dashboards/postgresql.json b/modules/nixos/monitoring/dashboards/postgresql.json
index 4e533f7..4e533f7 100644
--- a/modules/nixfiles/monitoring/dashboards/postgresql.json
+++ b/modules/nixos/monitoring/dashboards/postgresql.json
diff --git a/modules/nixfiles/monitoring/dashboards/unbound.json b/modules/nixos/monitoring/dashboards/unbound.json
index 8a0d503..8a0d503 100644
--- a/modules/nixfiles/monitoring/dashboards/unbound.json
+++ b/modules/nixos/monitoring/dashboards/unbound.json
diff --git a/modules/nixfiles/monitoring/default.nix b/modules/nixos/monitoring/default.nix
index 4ff4c50..4ff4c50 100644
--- a/modules/nixfiles/monitoring/default.nix
+++ b/modules/nixos/monitoring/default.nix
diff --git a/modules/nixfiles/nextcloud.nix b/modules/nixos/nextcloud.nix
index 69bea8a..69bea8a 100644
--- a/modules/nixfiles/nextcloud.nix
+++ b/modules/nixos/nextcloud.nix
diff --git a/modules/nixfiles/nginx.nix b/modules/nixos/nginx.nix
index b8ab24d..b8ab24d 100644
--- a/modules/nixfiles/nginx.nix
+++ b/modules/nixos/nginx.nix
diff --git a/modules/nixfiles/node-exporter.nix b/modules/nixos/node-exporter.nix
index 43f48f6..43f48f6 100644
--- a/modules/nixfiles/node-exporter.nix
+++ b/modules/nixos/node-exporter.nix
diff --git a/modules/nixfiles/nsd.nix b/modules/nixos/nsd.nix
index f5a7d84..0dade8f 100644
--- a/modules/nixfiles/nsd.nix
+++ b/modules/nixos/nsd.nix
@@ -170,7 +170,5 @@ in {
       allowedTCPPorts = [53];
       allowedUDPPorts = allowedTCPPorts;
     };
-
-    system.extraDependencies = [inputs.dns-nix];
   };
 }
diff --git a/modules/nixos/openssh.nix b/modules/nixos/openssh.nix
new file mode 100644
index 0000000..00d2852
--- /dev/null
+++ b/modules/nixos/openssh.nix
@@ -0,0 +1,34 @@
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}:
+with lib; let
+  cfg = config.nixfiles.modules.openssh;
+in {
+  options.nixfiles.modules.openssh.server.enable =
+    mkEnableOption "OpenSSH server";
+
+  config = mkIf cfg.server.enable {
+    programs.mosh.enable = true;
+
+    services = let
+      port = 22022; # Port 22 should be occupied by a tarpit.
+    in {
+      openssh = {
+        enable = true;
+        ports = [port];
+        logLevel = "VERBOSE"; # Required by fail2ban.
+        permitRootLogin = "no";
+        passwordAuthentication = false;
+      };
+
+      fail2ban.jails.sshd = ''
+        enabled = true
+        mode = aggressive
+        port = ${toString port}
+      '';
+    };
+  };
+}
diff --git a/modules/nixfiles/podman.nix b/modules/nixos/podman.nix
index 1c5378b..1c5378b 100644
--- a/modules/nixfiles/podman.nix
+++ b/modules/nixos/podman.nix
diff --git a/modules/nixfiles/postgresql.nix b/modules/nixos/postgresql.nix
index df05e7e..df05e7e 100644
--- a/modules/nixfiles/postgresql.nix
+++ b/modules/nixos/postgresql.nix
diff --git a/modules/nixos/profiles/default.nix b/modules/nixos/profiles/default.nix
new file mode 100644
index 0000000..d5ab838
--- /dev/null
+++ b/modules/nixos/profiles/default.nix
@@ -0,0 +1,33 @@
+{
+  config,
+  lib,
+  pkgs,
+  this,
+  ...
+}:
+with lib; let
+  cfg = config.nixfiles.modules.profiles.default;
+in {
+  imports = [
+    ./dev
+    ./headful.nix
+    ./headless.nix
+  ];
+
+  config = mkIf cfg.enable {
+    programs.less = {
+      enable = true;
+      envVariables.LESSHISTFILE = "-";
+    };
+
+    environment.systemPackages = with pkgs; [
+      cryptsetup
+      lshw
+      lsof
+      pciutils
+      psmisc
+      usbutils
+      util-linux
+    ];
+  };
+}
diff --git a/modules/nixos/profiles/dev/containers.nix b/modules/nixos/profiles/dev/containers.nix
new file mode 100644
index 0000000..195b892
--- /dev/null
+++ b/modules/nixos/profiles/dev/containers.nix
@@ -0,0 +1,27 @@
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}:
+with lib; let
+  cfg = config.nixfiles.modules.profiles.dev.containers;
+in {
+  config = mkIf cfg.enable {
+    nixfiles.modules.podman.enable = true;
+
+    hm = {
+      home = {
+        sessionVariables.MINIKUBE_HOME = "${config.dirs.config}/minikube";
+
+        packages = with pkgs; [buildah];
+      };
+
+      xdg.dataFile."minikube/config/config.json".text = generators.toJSON {} {
+        config.Rootless = true;
+        driver = "podman";
+        container-runtime = "cri-o";
+      };
+    };
+  };
+}
diff --git a/modules/nixos/profiles/dev/default.nix b/modules/nixos/profiles/dev/default.nix
new file mode 100644
index 0000000..83d41c0
--- /dev/null
+++ b/modules/nixos/profiles/dev/default.nix
@@ -0,0 +1,19 @@
+{
+  config,
+  lib,
+  pkgs,
+  this,
+  ...
+}:
+with lib; let
+  cfg = config.nixfiles.modules.profiles.dev.default;
+in {
+  config = mkIf cfg.enable {
+    hm.home.language = {
+      collate = "C";
+      messages = "C";
+    };
+
+    my.extraGroups = ["kvm"];
+  };
+}
diff --git a/modules/nixos/profiles/headful.nix b/modules/nixos/profiles/headful.nix
new file mode 100644
index 0000000..01c442e
--- /dev/null
+++ b/modules/nixos/profiles/headful.nix
@@ -0,0 +1,88 @@
+{
+  config,
+  lib,
+  pkgs,
+  this,
+  ...
+}:
+with lib; let
+  cfg = config.nixfiles.modules.profiles.headful;
+in {
+  config = mkIf cfg.enable {
+    nixfiles.modules = {
+      chromium.enable = true;
+      firefox.enable = true;
+      sound.enable = true;
+      x11.enable = true;
+
+      dwm.enable = mkDefault false;
+      kde.enable = mkDefault true;
+      xmonad.enable = mkDefault false;
+    };
+
+    hm = {
+      home.packages = with pkgs; [
+        calibre
+        imv
+        neochat
+        tdesktop
+        tor-browser
+      ];
+
+      programs.bash.shellAliases.open = "${pkgs.xdg-utils}/bin/xdg-open";
+    };
+
+    boot = {
+      # Pretty much placebo but has some nice patches for `-march=native`
+      # optimisations, P-State Zen4 support and Fsync for Wine.
+      kernelPackages = mkDefault pkgs.linuxPackages_xanmod_latest;
+
+      # There are (arguably) not a lot of reasons to keep mitigations enabled
+      # for on machine that is not web-facing. First of all, to completely
+      # mitigate any possible Spectre holes one would need to disable
+      # Hyperthreading altogether which will essentially put one's computer into
+      # the stone age by not being able to to effectively utilise multi-core its
+      # multicore capabilities. Secondly, by enabling mitigations, we introduce
+      # a plethora of performace overheads[1], which, albeit small, but still
+      # contribute to the overall speed of things. This is however still poses a
+      # security risk, which I am willing to take.
+      #
+      # [1]: https://www.phoronix.com/scan.php?page=article&item=spectre-meltdown-2&num=11
+      kernelParams = ["mitigations=off"];
+
+      loader = {
+        efi.canTouchEfiVariables = true;
+
+        systemd-boot = {
+          enable = true;
+          configurationLimit = 10;
+        };
+      };
+    };
+
+    hardware.opengl = {
+      enable = true;
+      driSupport = true;
+    };
+
+    programs = {
+      iftop.enable = true;
+      mtr.enable = true;
+      traceroute.enable = true;
+    };
+
+    services = {
+      # https://github.com/NixOS/nixpkgs/issues/135888
+      upower.enable = true;
+
+      psd.enable = true;
+    };
+
+    environment.systemPackages = with pkgs; [
+      ethtool
+      nethogs
+    ];
+
+    my.extraGroups = ["audio" "video" "input"];
+  };
+}
diff --git a/modules/nixos/profiles/headless.nix b/modules/nixos/profiles/headless.nix
new file mode 100644
index 0000000..9faf531
--- /dev/null
+++ b/modules/nixos/profiles/headless.nix
@@ -0,0 +1,42 @@
+{
+  config,
+  lib,
+  pkgs,
+  this,
+  ...
+}:
+with lib; let
+  cfg = config.nixfiles.modules.profiles.headless;
+in {
+  config = mkIf cfg.enable {
+    nixfiles.modules = {
+      openssh.server.enable = true;
+      endlessh-go.enable = true;
+
+      fail2ban.enable = true;
+
+      node-exporter.enable = true;
+      promtail.enable = true;
+    };
+
+    # Pin version to prevent any surprises.
+    boot.kernelPackages = pkgs.linuxPackages_5_15_hardened;
+
+    nix = {
+      gc = {
+        automatic = true;
+        dates = "weekly";
+        options = "--delete-older-than 30d";
+      };
+
+      optimise = {
+        automatic = true;
+        dates = ["daily"];
+      };
+    };
+
+    services.udisks2.enable = false;
+
+    xdg.sounds.enable = false;
+  };
+}
diff --git a/modules/nixfiles/prometheus.nix b/modules/nixos/prometheus.nix
index a75c151..a75c151 100644
--- a/modules/nixfiles/prometheus.nix
+++ b/modules/nixos/prometheus.nix
diff --git a/modules/nixfiles/promtail.nix b/modules/nixos/promtail.nix
index 552df82..552df82 100644
--- a/modules/nixfiles/promtail.nix
+++ b/modules/nixos/promtail.nix
diff --git a/modules/nixfiles/psd.nix b/modules/nixos/psd.nix
index 77d3c66..77d3c66 100644
--- a/modules/nixfiles/psd.nix
+++ b/modules/nixos/psd.nix
diff --git a/modules/nixfiles/radarr.nix b/modules/nixos/radarr.nix
index 0abfdf2..0abfdf2 100644
--- a/modules/nixfiles/radarr.nix
+++ b/modules/nixos/radarr.nix
diff --git a/modules/nixfiles/radicale.nix b/modules/nixos/radicale.nix
index c903d39..c903d39 100644
--- a/modules/nixfiles/radicale.nix
+++ b/modules/nixos/radicale.nix
diff --git a/modules/nixfiles/rss-bridge.nix b/modules/nixos/rss-bridge.nix
index fef1070..fef1070 100644
--- a/modules/nixfiles/rss-bridge.nix
+++ b/modules/nixos/rss-bridge.nix
diff --git a/modules/nixfiles/rtorrent.nix b/modules/nixos/rtorrent.nix
index 4014a3b..4014a3b 100644
--- a/modules/nixfiles/rtorrent.nix
+++ b/modules/nixos/rtorrent.nix
diff --git a/modules/nixfiles/searx.nix b/modules/nixos/searx.nix
index 9462d5d..9462d5d 100644
--- a/modules/nixfiles/searx.nix
+++ b/modules/nixos/searx.nix
diff --git a/modules/nixfiles/shadowsocks.nix b/modules/nixos/shadowsocks.nix
index b59359c..b59359c 100644
--- a/modules/nixfiles/shadowsocks.nix
+++ b/modules/nixos/shadowsocks.nix
diff --git a/modules/nixfiles/soju.nix b/modules/nixos/soju.nix
index 14faf00..14faf00 100644
--- a/modules/nixfiles/soju.nix
+++ b/modules/nixos/soju.nix
diff --git a/modules/nixfiles/solaar.nix b/modules/nixos/solaar.nix
index ceff23d..ceff23d 100644
--- a/modules/nixfiles/solaar.nix
+++ b/modules/nixos/solaar.nix
diff --git a/modules/nixfiles/sonarr.nix b/modules/nixos/sonarr.nix
index 8c79175..8c79175 100644
--- a/modules/nixfiles/sonarr.nix
+++ b/modules/nixos/sonarr.nix
diff --git a/modules/nixfiles/sound.nix b/modules/nixos/sound.nix
index ae35e44..ae35e44 100644
--- a/modules/nixfiles/sound.nix
+++ b/modules/nixos/sound.nix
diff --git a/modules/nixfiles/syncthing.nix b/modules/nixos/syncthing.nix
index b690ab4..b690ab4 100644
--- a/modules/nixfiles/syncthing.nix
+++ b/modules/nixos/syncthing.nix
diff --git a/modules/nixfiles/throttled.nix b/modules/nixos/throttled.nix
index f182ee1..f182ee1 100644
--- a/modules/nixfiles/throttled.nix
+++ b/modules/nixos/throttled.nix
diff --git a/modules/nixfiles/unbound.nix b/modules/nixos/unbound.nix
index 8c40291..8c40291 100644
--- a/modules/nixfiles/unbound.nix
+++ b/modules/nixos/unbound.nix
diff --git a/modules/nixfiles/vaultwarden.nix b/modules/nixos/vaultwarden.nix
index 7d51667..7d51667 100644
--- a/modules/nixfiles/vaultwarden.nix
+++ b/modules/nixos/vaultwarden.nix
diff --git a/modules/nixfiles/wireguard.nix b/modules/nixos/wireguard.nix
index d05c6ae..d05c6ae 100644
--- a/modules/nixfiles/wireguard.nix
+++ b/modules/nixos/wireguard.nix
diff --git a/modules/nixfiles/x11.nix b/modules/nixos/x11.nix
index cd8dfbe..cd8dfbe 100644
--- a/modules/nixfiles/x11.nix
+++ b/modules/nixos/x11.nix
diff --git a/modules/nixfiles/xmonad.nix b/modules/nixos/xmonad.nix
index 847110e..2cc7ad6 100644
--- a/modules/nixfiles/xmonad.nix
+++ b/modules/nixos/xmonad.nix
@@ -24,7 +24,5 @@ in {
     };
 
     services.xserver.displayManager.startx.enable = true;
-
-    system.extraDependencies = [inputs.xmonad-ng];
   };
 }
diff --git a/configurations/default.nix b/nixosConfigurations/default.nix
index a488cf1..8ebeda4 100644
--- a/configurations/default.nix
+++ b/nixosConfigurations/default.nix
@@ -7,14 +7,23 @@ with lib; let
     modules ? [],
     configuration ? ./${name},
     this ? my.configurations.${name},
+    extraSpecialArgs ? {
+      localUsername = my.username;
+      localHostname = this.hostname;
+    },
   }:
     nameValuePair name (nixosSystem {
       inherit (this) system;
       modules =
-        attrValues inputs.self.nixosModules
-        ++ modules
+        modules
+        ++ attrValues inputs.self.modules
+        ++ attrValues inputs.self.nixosModules
         ++ optional (configuration != null) (import configuration);
-      specialArgs = {inherit inputs lib this;};
+      specialArgs =
+        {
+          inherit inputs lib this;
+        }
+        // extraSpecialArgs;
     });
 in
   mapAttrs' mkConfiguration {
@@ -46,7 +55,7 @@ in
       };
     };
 
-    # A beefy desktop PC: 7950x/rx6750xt/128GB.
+    # A beefy desktop: 7950x/rx6750xt/128GB.
     eonwe.modules = with inputs; [
       nixos-hardware.nixosModules.common-cpu-amd
       nixos-hardware.nixosModules.common-gpu-amd
diff --git a/configurations/eonwe/default.nix b/nixosConfigurations/eonwe/default.nix
index c9af8e5..a867837 100644
--- a/configurations/eonwe/default.nix
+++ b/nixosConfigurations/eonwe/default.nix
@@ -2,6 +2,7 @@
   config,
   lib,
   pkgs,
+  this,
   ...
 }:
 with lib; {
@@ -18,6 +19,7 @@ with lib; {
     };
     android.enable = true;
     bluetooth.enable = true;
+    discord.enable = true;
     libvirtd.enable = true;
     qutebrowser.enable = true;
   };
@@ -27,41 +29,28 @@ with lib; {
 
     mpv.config = {
       hwdec = "vdpau";
-      vo = "vdpau";
+      vo = "gpu";
       profile = "gpu-hq";
     };
   };
 
-  networking = {
-    interfaces = {
-      eth0.useDHCP = true;
-      wlan0.useDHCP = true;
-    };
-
-    networkmanager = {
-      enable = true;
-      wifi.backend = "iwd";
-    };
-
-    wireless = {
-      enable = false;
-      iwd.enable = true;
-      userControlled.enable = true;
-      allowAuxiliaryImperativeNetworks = true;
-    };
-  };
-
   boot = {
-    initrd.availableKernelModules = ["ahci" "nvme" "sd_mod" "usb_storage" "usbhid" "xhci_pci"];
-
-    loader = {
-      efi.canTouchEfiVariables = true;
+    # Silence benign MCE errors:
+    # ```
+    # mce: [Hardware Error]: CPU 1: Machine Check: 0 Bank 29: ffffffffffffffff
+    # mce: [Hardware Error]: TSC 0 MISC ff1fffffffffffff SYND ffffffffffffffff IPID ffffffffffffffff
+    # mce: [Hardware Error]: PROCESSOR 2:a60f12 TIME 1669988017 SOCKET 0 APIC 2 microcode a601201
+    # ```
+    kernelParams = ["mce=nobootlog"];
 
-      systemd-boot = {
-        enable = true;
-        configurationLimit = 10;
-      };
-    };
+    initrd.availableKernelModules = [
+      "ahci"
+      "nvme"
+      "sd_mod"
+      "usb_storage"
+      "usbhid"
+      "xhci_pci"
+    ];
   };
 
   fileSystems = {
@@ -77,8 +66,7 @@ with lib; {
     };
   };
 
-  zramSwap = {
-    enable = true;
-    memoryPercent = 25;
-  };
+  # No swap space is declared here because the system already has 128Gb of RAM.
+  # I didn't manage to even hit 100Gb mark even when running large
+  # computations/compiling something big.
 }
diff --git a/configurations/manwe/default.nix b/nixosConfigurations/manwe/default.nix
index b8dd324..b8dd324 100644
--- a/configurations/manwe/default.nix
+++ b/nixosConfigurations/manwe/default.nix
diff --git a/configurations/manwe/mailserver.nix b/nixosConfigurations/manwe/mailserver.nix
index 966c21c..a4b552a 100644
--- a/configurations/manwe/mailserver.nix
+++ b/nixosConfigurations/manwe/mailserver.nix
@@ -91,6 +91,4 @@ with lib; {
       mode = aggressive
     '';
   };
-
-  system.extraDependencies = [inputs.simple-nixos-mailserver];
 }
diff --git a/configurations/manwe/webserver.nix b/nixosConfigurations/manwe/webserver.nix
index e1ee425..4dded7e 100644
--- a/configurations/manwe/webserver.nix
+++ b/nixosConfigurations/manwe/webserver.nix
@@ -20,6 +20,4 @@ with lib; {
       ${gondor}.locations."/".return = concatStrings [frodo gondor];
       ${rohan}.locations."/".return = concatStrings [frodo rohan];
     });
-
-  system.extraDependencies = [inputs.azahi-cc];
 }
diff --git a/configurations/melian/default.nix b/nixosConfigurations/melian/default.nix
index f296546..3ba854c 100644
--- a/configurations/melian/default.nix
+++ b/nixosConfigurations/melian/default.nix
@@ -15,25 +15,6 @@ with lib; {
     throttled.enable = true;
   };
 
-  networking = {
-    interfaces = {
-      eth0.useDHCP = true;
-      wlan0.useDHCP = true;
-    };
-
-    networkmanager = {
-      enable = true;
-      wifi.backend = "iwd";
-    };
-
-    wireless = {
-      enable = false;
-      iwd.enable = true;
-      userControlled.enable = true;
-      allowAuxiliaryImperativeNetworks = true;
-    };
-  };
-
   hardware.trackpoint = {
     enable = true;
     speed = 500;
@@ -80,13 +61,15 @@ with lib; {
   };
 
   boot = {
-    # Speeding up Wi-Fi a bit.
-    extraModprobeConfig = ''
-      options iwlwifi 11n_disable=1
-    '';
-
     initrd = {
-      availableKernelModules = ["ahci" "nvme" "sd_mod" "usb_storage" "usbhid" "xhci_pci"];
+      availableKernelModules = [
+        "ahci"
+        "nvme"
+        "sd_mod"
+        "usb_storage"
+        "usbhid"
+        "xhci_pci"
+      ];
 
       luks.devices."root" = {
         device = "/dev/disk/by-uuid/c1b46f24-eec0-47d2-a142-75ddfd7bb218";
@@ -94,15 +77,6 @@ with lib; {
         bypassWorkqueues = true;
       };
     };
-
-    loader = {
-      efi.canTouchEfiVariables = true;
-
-      systemd-boot = {
-        enable = true;
-        configurationLimit = 10;
-      };
-    };
   };
 
   fileSystems = {
@@ -118,8 +92,8 @@ with lib; {
     };
   };
 
-  # NOTE This will make hibernation extremely hard if on an encrypted partition.
-  # This also could not work on ZFS or Btrfs.
+  # NOTE This makes hibernation pretty much impossible because the partition is
+  # encrypted.
   swapDevices = [
     {
       device = "/swapfile";
diff --git a/configurations/test-headful/default.nix b/nixosConfigurations/test-headful/default.nix
index 25db8c7..25db8c7 100644
--- a/configurations/test-headful/default.nix
+++ b/nixosConfigurations/test-headful/default.nix
diff --git a/configurations/test-headless/default.nix b/nixosConfigurations/test-headless/default.nix
index 919a436..919a436 100644
--- a/configurations/test-headless/default.nix
+++ b/nixosConfigurations/test-headless/default.nix
diff --git a/configurations/varda/default.nix b/nixosConfigurations/varda/default.nix
index 5e0914e..5e0914e 100644
--- a/configurations/varda/default.nix
+++ b/nixosConfigurations/varda/default.nix
diff --git a/configurations/yavanna/default.nix b/nixosConfigurations/yavanna/default.nix
index e3172a6..e3172a6 100644
--- a/configurations/yavanna/default.nix
+++ b/nixosConfigurations/yavanna/default.nix