feat(keyboard): add docs

Flake lock file updates:

• Updated input 'nixpkgs':
    'github:NixOS/nixpkgs/2f06b87f64bc06229e05045853e0876666e1b023' (2022-04-14)
  → 'github:NixOS/nixpkgs/a318a09a96a38382fe61a7f85d03ea6e25c46c56' (2022-04-22)
• Updated input 'nixpkgs-unstable':
    'github:NixOS/nixpkgs/6140c314d5850406dddc78e55dcc8716ea111ee4' (2022-04-17)
  → 'github:NixOS/nixpkgs/0f1f92d85be76e0bd79ebb2285be8f43683eb845' (2022-04-24)

configs/keyboard.nix

@@ -5,9 +5,12 @@
 }: let
   commaSep = builtins.concatStringsSep ",";
 in {
+  # man 7 xkeyboard-config
   services.xserver = {
-    layout = commaSep ["de" "gr"];
-    xkbVariant = commaSep ["T3" "polytonic"];
+    layout = commaSep ["de" "gr" "ru" "ara"];
+    # T3: https://upload.wikimedia.org/wikipedia/commons/a/a9/German-Keyboard-Layout-T3-Version1-large.png
+    # buckwalter: http://www.qamus.org/transliteration.htm
+    xkbVariant = commaSep ["T3" "polytonic" "phonetic" "buckwalter"];
     xkbOptions =
       commaSep ["compose:caps" "terminate:ctrl_alt_bksp" "grp:ctrls_toggle"];
     libinput.enable = true;
@@ -17,4 +20,15 @@ in {
 
   # improve held key rate
   services.xserver.displayManager.sessionCommands = "${pkgs.xorg.xset}/bin/xset r rate 300 50";
+
+  systemd.user.services.gxkb = {
+    wantedBy = ["graphical-session.target"];
+    serviceConfig = {
+      SyslogIdentifier = "gxkb";
+      ExecStart = "${pkgs.gxkb}/bin/gxkb";
+      Restart = "always";
+      RestartSec = "15s";
+      StartLimitBurst = 0;
+    };
+  };
 }

flake.lock

@@ -109,11 +109,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1649944829,
-        "narHash": "sha256-wjOgLfjCdyoRamMOrVJceeDJk4LvJsQOxBoT3k16/7Q=",
+        "lastModified": 1650647313,
+        "narHash": "sha256-6ghnNPXDlG6/tXeIFdbP0cGnik6TGNwc615hhG9dpl4=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "2f06b87f64bc06229e05045853e0876666e1b023",
+        "rev": "a318a09a96a38382fe61a7f85d03ea6e25c46c56",
         "type": "github"
       },
       "original": {
@@ -125,11 +125,11 @@
     },
     "nixpkgs-unstable": {
       "locked": {
-        "lastModified": 1650167080,
-        "narHash": "sha256-sSFOXf1YtX6EIHG5HAh64y6EqJ1/5epcCSq1c8wxCi4=",
+        "lastModified": 1650760898,
+        "narHash": "sha256-r1rzTgwi1FKx5t3KKi7Xt4hyGdOnTD0RSTpbNls09KU=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "6140c314d5850406dddc78e55dcc8716ea111ee4",
+        "rev": "0f1f92d85be76e0bd79ebb2285be8f43683eb845",
         "type": "github"
       },
       "original": {

systems/makanek/monitoring/default.nix

@@ -220,7 +220,7 @@ in {
             "tarot.kmein.de"
             "cloud.xn--kiern-0qa.de"
             "grafana.kmein.r"
-            "names.kmein.r"
+            # "names.kmein.r"
             "rrm.r"
             "graph.r"
           ];