From d4507b8176989c7a96f4203eabf1b2b2fdb902cb Mon Sep 17 00:00:00 2001
From: Ingolf Wagner <contact@ingolf-wagner.de>
Date: Fri, 2 Jun 2023 16:40:40 +0200
Subject: [PATCH] improved kmonad

---
 nixos/components/gui/kmonad.nix | 93 +++++++++++++++++++--------------
 1 file changed, 55 insertions(+), 38 deletions(-)

diff --git a/nixos/components/gui/kmonad.nix b/nixos/components/gui/kmonad.nix
index 2a84faa..89ad530 100644
--- a/nixos/components/gui/kmonad.nix
+++ b/nixos/components/gui/kmonad.nix
@@ -1,46 +1,63 @@
-{ config, pkgs, ... }:
+{ config, pkgs, lib, ... }:
 {
-  services.xserver = {
-    layout = "us";
-    xkbOptions = "compose:ralt";
+
+  options.components.gui.kmonad.enable = lib.mkOption {
+    type = lib.types.bool;
+    default = config.components.gui.enable;
   };
-  services.kmonad = {
-    enable = true;
-    keyboards.dasKeyboard = {
-      device = "/dev/input/by-id/usb-Metadot_-_Das_Keyboard_Das_Keyboard-event-kbd";
-      extraGroups = [ "video" ];
-      defcfg = {
-        enable = true;
-        fallthrough = true;
-        allowCommands = true;
-      };
-      config = ''
-        (defsrc
-          grv  1    2    3    4    5    6    7    8    9    0    -    =    bspc
-          tab  q    w    e    r    t    y    u    i    o    p    [    ]    \
-          caps a    s    d    f    g    h    j    k    l    ;    '    ret
-          lsft z    x    c    v    b    n    m    ,    .    /    rsft
-          lctl lmet lalt           spc            ralt rmet cmp  rctl
-        )
 
-        (defalias sym (layer-toggle symbols))
+  config = lib.mkIf (config.components.gui.kmonad.enable) {
 
-        (deflayer qwerty
-          grv  1    2    3    4    5    6    7    8    9    0    -    =    bspc
-          tab  q    w    e    r    t    y    u    i    o    p    [    ]    \
-          esc  a    s    d    f    g    h    j    k    l    ;    '    ret
-          lsft z    x    c    v    b    n    m    ,    .    /    rsft
-          lctl lmet lalt           spc            @sym rmet cmp  rctrl
-        )
-
-        (deflayer symbols
-          _    ½    ²    ³    ⁴    ⁵    ⁶    ⁷    ⁸    ⁹    ∞    _    _    _
-          _    _    _    €    _    ™    _    ü    _    ö    _    _    _    _
-          caps ä    ß    _    _    _    _    _    _    _    _    _    _
-          _    _    _    ¢    _    _    _    _    _    _    _    _
-          _    _    _              _              _    _    _    _)
-      '';
+    services.xserver = {
+      layout = "us";
+      xkbOptions = "compose:ralt";
     };
 
+    services.kmonad = {
+      enable = true;
+      keyboards =
+        let
+          keyboard = device: {
+            device = device;
+            extraGroups = [ "video" ];
+            defcfg = {
+              enable = true;
+              fallthrough = true;
+              allowCommands = true;
+            };
+            config = ''
+              (defsrc
+                grv  1    2    3    4    5    6    7    8    9    0    -    =    bspc
+                tab  q    w    e    r    t    y    u    i    o    p    [    ]    \
+                caps a    s    d    f    g    h    j    k    l    ;    '    ret
+                lsft z    x    c    v    b    n    m    ,    .    /    rsft
+                lctl lmet lalt           spc            ralt rmet cmp  rctl
+              )
+
+              (defalias sym (layer-toggle symbols))
+
+              (deflayer qwerty
+                grv  1    2    3    4    5    6    7    8    9    0    -    =    bspc
+                tab  q    w    e    r    t    y    u    i    o    p    [    ]    \
+                esc  a    s    d    f    g    h    j    k    l    ;    '    ret
+                lsft z    x    c    v    b    n    m    ,    .    /    rsft
+                lctl lmet lalt           spc            @sym rmet cmp  rctrl
+              )
+
+              (deflayer symbols
+                _    ½    ²    ³    ⁴    ⁵    ⁶    ⁷    ⁸    ⁹    ∞    _    _    _
+                _    _    _    €    _    ™    _    ü    _    ö    _    _    _    _
+                caps ä    ß    _    _    _    _    _    _    _    _    _    _
+                _    _    _    ¢    _    _    _    _    _    _    _    _
+                _    _    _              _              _    _    _    _)
+            '';
+          };
+
+        in
+        {
+          nativ = keyboard "/dev/input/by-path/platform-i8042-serio-0-event-kbd";
+          dasKeyboard = keyboard "/dev/input/by-id/usb-Metadot_-_Das_Keyboard_Das_Keyboard-event-kbd";
+        };
+    };
   };
 }