feat(kmonad): support multiple keyboards

kmonad/.config/kmonad/dactyl.kbd

@@ -0,0 +1,31 @@
+(defcfg
+  input  (device-file "/dev/input/by-id/usb-izwan_zwactyl_50_vial:f64c2b3c-event-kbd")
+  output (uinput-sink "My KMonad output")
+
+  ;; Comment this if you want unhandled events not to be emitted
+  fallthrough true
+
+  ;; Set this to false to disable any command-execution in KMonad
+  allow-cmd false
+)
+
+(defsrc
+  caps a    s    d    f    g    h    j    k    l    ;
+)
+
+(defalias
+    ctl_a (tap-hold-next-release 200 a lctl)
+    alt_s (tap-hold-next-release 200 s lalt)
+    met_d (tap-hold-next-release 200 d lmet)
+    sft_f (tap-hold-next-release 200 f lsft)
+
+    sft_j (tap-hold-next-release 200 j rsft)
+    met_k (tap-hold-next-release 200 k rmet)
+    alt_l (tap-hold-next-release 200 l ralt)
+    ctl_; (tap-hold-next-release 200 ; rctl)
+)
+
+
+(deflayer qwerty
+  esc @ctl_a   @alt_s   @met_d   @sft_f   g   h   @sft_j   @met_k   @alt_l   @ctl_;
+)

kmonad/.config/kmonad/external_keyboard_script.sh

@@ -1,7 +1,12 @@
 #!/bin/sh
 
-device_name="platform-i8042-serio-0-event-kbd"
+laptop="by-path/platform-i8042-serio-0-event-kbd"
+dactyl="by-id/usb-izwan_zwactyl_50_vial:f64c2b3c-event-kbd"
 
-if [ -e "/dev/input/by-path/${device_name}" ]; then
-	kmonad "${HOME}/.config/kmonad/config.kbd"
+# This isn't an ideal solution. But the external keyboard gets high priority
+# than the laptop keyboard, so check for that first.
+if [ -e "/dev/input/${dactyl}" ]; then
+	kmonad "${HOME}/.config/kmonad/dactyl.kbd"
+elif [ -e "/dev/input/${laptop}" ]; then
+	kmonad "${HOME}/.config/kmonad/laptop.kbd"
 fi