Initial release v1.0.0

Add GPIO-based volume button driver for Lenovo IdeaPad Flex 5i Chromebook Gen 8

  Features:
  - Volume button detection via GPIO polling
  - Key repeat with configurable timings
  - Systemd service integration
  - Professional documentation

chromebook-volume-buttons.service

@@ -0,0 +1,19 @@
+[Unit]
+Description=Chromebook Volume Buttons Handler
+Documentation=https://github.com/chromebook-volume-buttons
+After=multi-user.target
+Wants=multi-user.target
+
+[Service]
+Type=simple
+ExecStart=/usr/bin/python3 /usr/local/bin/chromebook-volume-buttons
+Restart=always
+RestartSec=5
+User=root
+
+# Security settings
+NoNewPrivileges=true
+PrivateTmp=true
+
+[Install]
+WantedBy=multi-user.target