It's a crosshair. Dead centre of your screen, always on top, clicks pass right through. 100 lines of C, one tray icon, zero dependencies.
What is the chengmarc/crosshair GitHub project? Description: "It's a crosshair. Dead centre of your screen, always on top, clicks pass right through. 100 lines of C, one tray icon, zero dependencies.". Written in C. Explain what it does, its main use cases, key features, and who would benefit from using it.
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