kanata 1.11.0

Multi-layer keyboard customization
Documentation 
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;; push-msg Sample Configuration
;;
;; This configuration demonstrates the push-msg action for sending
;; messages to external tools via Kanata's TCP server.
;;
;; To use this config:
;;   kanata -p 7070 -c push-msg.kbd
;;
;; Then connect a TCP client to localhost:7070 to receive messages.

(defcfg
  process-unmapped-keys yes
)

(defsrc
  caps a s d f g h j k l ; '
  z x c v b n m , . /
)

;; ==========================================================================
;; Layer Definitions
;; ==========================================================================

(deflayer base
  @caps a s d f g h j k l ; '
  z x c v b n m , . /
)

(deflayer nav
  @caps left down up right g h j k l ; '
  z x c v b n m , . /
)

;; ==========================================================================
;; Aliases with push-msg
;; ==========================================================================

(defalias
  ;; Caps Lock: tap for Esc (with notification), hold for nav layer (with notification)
  caps (tap-hold 200 200
    (multi esc (push-msg "layer:base"))
    (multi (layer-toggle nav) (push-msg "layer:nav:hold"))
  )
)

;; ==========================================================================
;; Virtual Keys - Triggerable via TCP ActOnFakeKey
;; ==========================================================================
;;
;; External tools can trigger these using TCP commands:
;;   {"ActOnFakeKey":{"name":"email-sig","action":"Tap"}}
;;   {"ActOnFakeKey":{"name":"switch-nav","action":"Tap"}}

(defvirtualkeys
  ;; Text expansion macro (S-x for shift+x to get capitals)
  email-sig (macro
    S-b e s t spc r e g a r d s , ret ret
    S-j o h n spc S-d o e
  )

  ;; Layer switches that also push messages
  switch-nav (multi
    (layer-switch nav)
    (push-msg "layer:nav:activated")
  )

  switch-base (multi
    (layer-switch base)
    (push-msg "layer:base:activated")
  )

  ;; Notify external tools (no keyboard action)
  notify-ready (push-msg "status:ready")
  notify-busy (push-msg "status:busy")
)

;; ==========================================================================
;; Usage Examples for External Tools
;; ==========================================================================
;;
;; Python TCP client example:
;;
;;   import socket
;;   import json
;;
;;   sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
;;   sock.connect(('127.0.0.1', 7070))
;;   buffer = ""
;;
;;   while True:
;;       data = sock.recv(4096).decode()
;;       buffer += data
;;       while '\n' in buffer:
;;           line, buffer = buffer.split('\n', 1)
;;           if line:
;;               msg = json.loads(line)
;;               if 'MessagePush' in msg:
;;                   print(f"Received: {msg['MessagePush']['message']}")
;;               elif 'LayerChange' in msg:
;;                   print(f"Layer: {msg['LayerChange']['new']}")
;;
;; Triggering virtual keys from external tools:
;;
;;   # Send this JSON to trigger the email-sig virtual key:
;;   echo '{"ActOnFakeKey":{"name":"email-sig","action":"Tap"}}' | nc localhost 7070
;;
;;   # Or trigger layer switch:
;;   echo '{"ActOnFakeKey":{"name":"switch-nav","action":"Tap"}}' | nc localhost 7070
;;
;; ==========================================================================