LogiLockLED is a system tray application to monitor Num, Caps and Scroll lock states using icons in system tray, on screen display/popups and Logitech users can change the key backlight.

KeyLock is an efficient and scalable key-value lock library, supporting concurrent lock operations for types such as strings and integers, suitable for fine-grained lock control needs in high-concurrency scenarios.（KeyLock是一个高效可扩展的键值锁库，支持字符串和整数等类型的并发锁操作，适用于高并发场景下的细粒度锁控制需求。）